[Mammalogy • 2018] Uncovering the Diversity of Dog-faced Bats from the Genus Cynomops (Chiroptera: Molossidae), with the Redescription of C. milleri and the Description of Two New Species; Cynomops freemani & C. tonkigui ---ScRaBBlE

Cynomops freemani 

Moras, Gregorin, Sattler & Tavares, 2018

DOI: 10.1016/j.mambio.2017.12.005  

si.edu 

Abstract

Until recently the genus Cynomops (Chiroptera: Molossidae) comprised six species of fast flying, aerial insectivorous bats distributed throughout the Neotropics. However, our revisionary study have shown that the diversity of this taxon was underestimated as molecular and morphological data supported the recognition of C. milleri as a full species and revealed two previously unrecognized, small species of Cynomops. These newly recognized taxa are Cynomops freemani sp. nov. from the Canal Zone region, Panama, sister taxon to C. mexicanus, and Cynomops tonkigui sp. nov. from the eastern Andes of Ecuador and Colombia, sister taxon of C. milleri. We also describe the calls of Cynomops freemani sp. nov. that may be useful for the recognition of these species during field inventories based on ultrasonic recording techniques. We elevate the currently known diversity of Cynomops to eight species, as we also revalidate C. milleri providing an emended diagnosis and a redescription of this taxon.

Keywords: Free-tailed bats, taxonomy, acoustic identification, Cynomops freemani sp. nov, Cynomops tonkigui sp. nov

Systematics

Family Molossidae Gervais 1856

Genus Cynomops Thomas 1920

Cynomops milleri (Osgood, 1914)

Miller’s Dog-faced Bat

two Freeman’s Dog-Faced bats Cynomops freemani discovered in Gamboa, Panama.

Photo: Elias Bader

Cynomops freemani, new species 

Freeman’s Dog-faced Bat

ETYMOLOGY: The name “freemani” is in honor to Dr. Patricia W. Freeman in recognition of her influential contributions to the study of the morphology, systematics, and evolutionary relationships of molossid bats (e.g. Freeman, 1981).

DISTRIBUTION: Cynomops freemani is known from lowlands (23–53 m a.s.l.) of the Pacific coast of the Canal Zone region in Panama (Fig. 3).

 Waorani dog-faced bat Cynomops tonkigui 

Photo: Diego Tirira

Cynomops tonkigui, new species 

Waorani Dog-faced Bat

ETYMOLOGY: The name “tonkigui” is used as a noun in apposition, and means "bat" in the Waorani language. The name honors the Waorani people who inhabit the type locality (Tirira, 2012)

DISTRIBUTION: Cynomops tonkigui is known from the lowlands (195–529 m a.s.l.) of northeastern South America, and the eastern slopes of the Andes in Ecuador and Colombia (Fig. 3).

 Ligiane M. Moras, Renato Gregorin, Thomas Sattler and Valéria da C. Tavares. 2018. Uncovering the Diversity of Dog-faced Bats from the Genus Cynomops (Chiroptera: Molossidae), with the Redescription of C. milleri and the Description of Two New Species. Mammalian Biology. In Press. DOI: 10.1016/j.mambio.2017.12.005 

ResearchGate.net/publication/321884329_Uncovering_the_diversity_of_dog-faced_bats_from_the_genus_Cynomops_Chiroptera_Molossidae 

   

Two New Dog-Faced Bat Species Discovered in Panama and Ecuador newsdesk.si.edu/releases/two-new-dog-faced-bat-species-discovered-panama-and-ecuador
More sky puppies! Scientists discover two new species of dog-faced bat insider.si.edu/2018/01/sky-puppies-scientists-discover-two-new-species-dog-faced-bat 

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

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شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Mammalogy • 2018] A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and A New Species from Amazonia ---ScRaBBlE

A member of the Philander melanurus complex attacking a large specimen of the venomous elapid snake Micrurus nigrocinctus. The pale supraocular spots and ashy dorsal coloration are diagnostic external traits of the genus Philander.

photo: Mario J. Gómez-Martínez

in Voss, Díaz-Nieto & Jansa, 2018.

 DigitalLibrary.AMNH.org DOI: 10.1206/3891.1 

ABSTRACT

This is the first installment of a revision of the didelphid marsupial genus Philander, commonly known as gray four-eyed opossums. Although abundant and widespread in lowland tropical forests from southern Mexico to northern Argentina, species of Philander are not well understood taxonomically, and the current literature includes many examples of conflicting species definitions and nomenclatural usage. Our revision is based on coalescent analyses of mitochondrial gene sequences, phylogenetic analyses of mitochondrial and nuclear genes, morphometric analyses, and firsthand examination of relevant type material. Based on these results, we provisionally recognize eight species, of which three are formally treated in this report: P. quica (Temminck, 1824), an Atlantic Forest endemic formerly known as P. frenatus (Olfers, 1818); P. canus (Osgood, 1913), a widespread species formerly treated as a synonym or subspecies of P. opossum (Linnaeus, 1758); and Philander pebas, a new species endemic to Amazonia. The remaining, possibly valid, species of Philander can be allocated to two clades. The first is a cis-Andean complex that includes P. andersoni (Osgood, 1913); P. mcilhennyi Gardner and Patton, 1972; and P. opossum. The second is a trans-Andean complex that includes P. melanurus (Thomas, 1899) and P. pallidus (Allen, 1901). Among other nomenclatural acts, we designate a neotype for the long-problematic nominal taxon Didelphis superciliaris Olfers, 1818, and (in an appendix coauthored by Renate Angermann), we establish that Olfers' coeval binomen D. frenata is based on an eastern Amazonian type and is a junior synonym of P. opossum.

FIG. 1. A member of the Philander melanurus complex attacking a large specimen of the venomous elapid snake Micrurus nigrocinctus. The pale supraocular spots and ashy dorsal coloration are diagnostic external traits of the genus Philander.

(photo: Mario J. Gómez-Martínez) 

TAXONOMIC ACCOUNTS

The following accounts include an emended description of the genus Philander, redescriptions of P. quica and P. canus, and a description of our new Amazonian species, P. pebas. Additionally, these accounts serve to summarize geographic distributions, comment on relevant issues of nomenclature and identification, and list the morphological specimens we examined. Our abbreviated synonymies include only original descriptions (subsequent name combinations can be found in Patton and da Silva, 2008). Qualitative morphological comparisons of P. quica, P. canus, and P. pebas are summarized in table 6, and descriptive statistics are summarized in tables 7 and 8. Morphological comparisons with other species are restricted to members of the cis-Andean P. opossum complex.

Philander Brisson, 1762

Type Species: Didelphis opossum Linnaeus, 1758, 

by plenary action of the International Commission on Zoological Nomenclature (ICZN, 1998).

Contents: Based on evidence summarized in this report, we tentatively recognize the following eight species as valid (synonyms in parentheses): 

• andersoni Osgood, 1913; 

• canus Osgood, 1913 (including crucialis Thomas, 1923; mondolfii Lew et al., 2006; and olrogi Flores et al., 2008); 

• mcilhennyi Gardner and Patton, 1972; 

• melanurus Thomas, 1899 (including fuscogriseus Allen, 1900; grisescens Allen, 1901; and melantho Thomas, 1923); 

• opossum Linnaeus, 1758 (including frenatus Olfers, 1818; and superciliaris Olfers, 1818); 

• pallidus Allen, 1901; 

• pebas, new species (described below); and 

• quica Temminck, 1824 (including azaricus Thomas, 1923). 

In the absence of genetic information, we are currently unable to assess the validity of deltae Lew et al., 2006, and nigratus Thomas, 1923, either or both of which might also be good species.

....

Robert S. Voss, Juan F. Díaz-Nieto and Sharon A. Jansa. 2018. A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and A New Species from Amazonia. American Museum Novitates. Number 3891; 1-70.  DOI: 10.1206/3891.1  digitallibrary.amnh.org/handle/2246/6839

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Mammalogy • 2018] Cryptotis evaristoi • A New Species of Small-eared Shrew of the Genus Cryptotis (Eulipotyphla, Soricidae) from the northernmost Peruvian Andes ---ScRaBBlE

Cryptotis evaristoi 

Zeballos, Pino, Medina, Pari, Chávez, Tinoco & Ceballos, 2018

 DOI: 10.11646/zootaxa.4377.1.4 

Abstract

The northernmost Peruvian Andes, a unique biogeographic region characterized by the confluence of multiple distinct ecosystems (i.e. Amazon basin, Pacific rainforest, the Sechura Desert, the northern and central Andes), is the southernmost geographic range limit of the South American shrews representing the genus Cryptotis. In the northernmost Peruvian Andes, two poorly known species have traditionally been reported (C. peruviensis and C. equatoris). Our study, based on molecular and morphologic traits, confirms the presence of C. peruviensis but also the occurrence of C. montivaga, based on specimens erroneously assigned to C. equatoris. Moreover, a new species of Cryptotis from the páramo and montane forests of the Tabaconas Namballe National Sanctuary near the Ecuadorian border is also described. It is a member of the thomasi group and is distinguished from other South American shrews by a unique set of morphological characters, including large body size, comparatively short tail, simple ectoloph of M3, and large PM4 post protocrista.

Keywords: Mammalia, Soricomorpha, new species, Andean páramo, Neotropical shrews, Peruvian mammals

Horacio Zeballos, Kateryn Pino, César E. Medina, Alexander Pari, Daniel Chávez, Nicolás Tinoco and Gerardo Ceballos. 2018. A New Species of Small-eared Shrew of the Genus Cryptotis (Mammalia, Eulipotyphla, Soricidae) from the northernmost Peruvian Andes. Zootaxa. 4377(1); 51–73.  DOI: 10.11646/zootaxa.4377.1.4

 facebook.com/dcotrinasanchez/posts/10211391663883017

 facebook.com/santuarionacional/posts/1849107531797554

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Mammalogy • 2017] Caribbean Myotis (Chiroptera, Vespertilionidae), with Description of A New Species, Myotis attenboroughi, from Trinidad and Tobago ---ScRaBBlE

Myotis attenboroughi

Moratelli, Wilson, Novaes, Helgen & Gutiérrez, 2017 

DOI: 10.1093/jmammal/gyx062   

facebook.com: TriniBats 

Abstract

We describe a new species of Myotis (Vespertilionidae, Myotinae) from the Republic of Trinidad and Tobago, Tobago Island. The new species (Myotis attenboroughi sp. nov.) can be distinguished from all other Neotropical congeners by cranial features and cytochrome-b gene sequences. Myotis attenboroughi sp. nov. is allied morphologically with species in the albescens group (like M. nigricans), and is sister to a clade including M. cf. handleyi, M. nesopolus, and 3 possibly undescribed species from Central and South America. A review of Myotis collections from the Caribbean confirms M. nyctor for Barbados and Grenada; M. dominicensis for Dominica and Guadeloupe; M. martiniquensis for Martinique; M. pilosatibialis and M. riparius for Trinidad; and M. attenboroughi for Tobago. The occurrence of M. attenboroughi on Trinidad is still an open question.

Keywords: Caribbean, Lesser Antilles, Myotis attenboroughi, Myotis nigricans, Neotropics, Sir David Attenborough’s Myotis

The newly described, Sir David Attenborough's Myotis —Myotis attenboroughi—(Moratelli et al.,2017), represents the first, and only known, endemic mammalian species on the islands of Trinidad and Tobago. Molecular, morphological and morphometric analyses conducted by Moratelli et al., now confirms that the Black Myotis on Tobago (see photo), traditionally assigned, Myotis nigricans, is actually a previously unknown species now named, Myotis attenboroughi, in honour of famed naturalist, Sir David Attenborough. This tiny bat, the Sir David Attenborough's Myotis, Trinidad and Tobago's only known endemic mammalian species, consumes moths and other small flying insects. This species is known to roost in caves, tree-hollows, and if neither of these is available, the attics of buildings.

 Photo: Geoffrey Gomes (Trinibats) 

facebook.com/268073503299130/photos/1134219333351205

Why isn't the bat named for Tobago? In this particular case, this new designation is a result of a species split (simply put). In zoological nomenclature, this occurs when new findings warrant a species being split into subspecies or new species, which is the case here. If this specimen described for Tobago was indeed an originally described, nominal species, as distinct from a species or subspecies subsequently distinguished from it, then it may be named Tobagoi or Trinitatis (as some local bats are named), or something along those lines.

Photo: Steve Parker

facebook.com/photos/p.1134495106656961/1134495106656961

facebook.com/268073503299130/photos/1134219333351205 

  

Ricardo Moratelli, Don E. Wilson, Roberto L. M. Novaes, Kristofer M. Helgen and Eliécer E. Gutiérrez. 2017. Caribbean Myotis (Chiroptera, Vespertilionidae), with Description of A New Species from Trinidad and Tobago.  J Mammal. gyx062.  DOI: 10.1093/jmammal/gyx062 
 researchgate.net/publication/317381815_Caribbean_Myotis_with_description_of_a_new_species_from_Trinidad_and_Tobago

facebook.com/photo.php?fbid=1468052153234181

facebook.com/268073503299130/photos/1134219333351205

T&T goes batty over first endemic mammalian species | Loop News http://www.looptt.com/content/tt-goes-batty-over-first-endemic-mammalian-species

Describimos una nueva especie de Myotis (Vespertilionidae, Myotinae) de la República de Trinidad y Tobago, isla de Tobago. La nueva especie (Myotis attenboroughi sp. nov.) se distingue de otros congéneres Neotropicales en sus rasgos craneanos y secuencias del gen citocromo b. Myotis attenboroughi sp. nov. es morfológicamente similar a especies del grupo albescens (tal como M. nigricans) y es hermana de un clado que incluye a M. cf. handleyi, M. nesopolus, y tres especies, posiblemente no descritas, de Centro y Sud América. Una revisión de las series de Myotis del Caribe confirma a M. nyctor para Barbados y Granada; M. dominicensis para Dominica y Guadalupe; M. martiniquensis para Martinica; M. pilosatibialis y M. riparius para Trinidad; y M. attenboroughi para Tobago. La presencia de M. attenboroughi en Trinidad sigue siendo hoy un enigma.

Singular bat Zoologists have named a newly discovered species of bat after the veteran British naturalist and broadcaster David Attenborough. Scientists analysed museum records of specimens of 377 Caribbean bats, and found that a species apparently endemic to the island of Tobago is morphologically and genetically different from the mainland species (Myotis nigricans) to which it had been assigned taxonomically for almost a century. Taxonomist Ricardo Moratelli and his team named the bat (pictured) Myotis attenboroughi in honour of the naturalist, who has inspired generations of wildlife biologists. The findings were published on 7 June (R. Moratelli et al. J. Mammal. http://doi.org/b78; 2017).

nature.com/news/us-exits-paris-jupiter-s-new-moons-and-the-biggest-prize-in-science-1.22101

  

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[PaleoMammalogy • 2017] Xibalbaonyx oviceps • A New Megalonychid Ground Sloth (Folivora, Xenarthra) from the Late Pleistocene of the Yucatán Peninsula, Mexico, and Its Paleobiogeographic Significance ---ScRaBBlE

Xibalbaonyx oviceps 

Stinnesbeck, Frey, Olguín, Stinnesbeck, Zell, Mallison, González, Núñez, Morlet, Mata, Sanvicente, Hering & Sandoval, 2017.

 DOI: 10.1007/s12542-017-0349-5 

Abstract

Here we describe a new genus and species of giant ground sloth, Xibalbaonyx oviceps (Megalonychidae, Xenarthra), from the drowned cave system of the northeastern Yucatán Peninsula. The specimen is Late Pleistocene in age and was discovered in the Zapote sinkhole (cenote) near Puerto Morelos in the Mexican state of Quintana Roo. Xibalbaonyx oviceps differs significantly from all hitherto known Megalonychidae including those from the Greater Antilles and South America. The new taxon suggests a local Caribbean radiation of ground sloths during the Late Pleistocene, which is consistent with the dispersal of the group along a Mexican corridor.

Keywords: Ground sloths, Pleistocene, Yucatán Peninsula, Mexico 

Systematic palaeontology

Superorder Xenarthra Cope, 1889

Order Pilosa Flower, 1883

Superfamily Megatherioidea Gray, 1821

Family Megalonychidae Gervais, 1855

Diagnosis of the family. Xibalbaonyx oviceps is identified as a member of Megalonychidae based on the following features: dorsal contour of skull evenly convex in lateral view. The glenoid fossa is mediolaterally widened, its posterior surface smooth and the fossa is well separated from the porus acusticus. The lateral plate of the entotympanic is thin with a medial expansion and weak participation in the floor of the tympanic cavity. The paroccipital process is well developed (Patterson et al. 1992; Gaudin 1995, 2004; McDonald et al. 2013b).

Fig. 4: Xibalbaonyx oviceps (Za2014-01) skull in lateral view (left side). 

Fig. 3: Xibalbaonyx oviceps in situ within the Zapote cenote; Skull and mandible (Za2014-01, -05)

Xibalbaonyx oviceps gen. et sp. nov.

Etymology. For the genus: Xibalbá = Maya for “underground” or “place of fear,” dedicated to the cave divers who dive into the “underworld,” the cenotes, and collect the fossils under risky conditions, but also in honor of the Yucatán Peninsula, which is also called the Maya region; “őνυξ” (onyx) = Greek for “claw” or “finger nail;” for the species: oviceps from ovum = Latin for “egg” and caput = “head,” “egghead,” referring to the regularly domed skull roof of the specimen.

Stratigraphic and geographic distribution. The Cenote Zapote 16 Q 0486971 UTM 2305968, Ruta de los Cenotes Puerto Morelos Quintana Roo, Mexico. Late Pleistocene and/or Early Holocene (9.305 ± 35 14C bp, 10.647–10.305 cal bp).

.....

 Conclusions: 

The well-preserved skull and mandible of a ground sloth discovered in the Zapote cenote Cave near Puerto Morelos on the northeastern Yucatán Peninsula of Mexico is here described as a new genus and species of Megalonychidae. The individual, here named Xibalbaonyx oviceps, has a dental formula of 5/4 including a greatly enlarged caniniform tooth of triangular cross-section. This caniniform is separated by a long diastema from the molariform tooth rows in both the lower and upper jaw. The molariform teeth show oval, rounded rectangular to reniform (McDonald et al. 2013b) occlusal shapes with transverse crests. All teeth except for the upper caniniforms, show striations and apicobasal sulci that may be expressed as shallow grooves or deep sulci. The ascending process of the jugal is longer than the descending and middle process of the jugal. The pterygoids are inflated. The glenoid fossa is transversally widened. The skull is elongated and narrow, with a nasional impression on the nasals. The temporal lines are widely separated and do not form a sagittal crest. The skull is narrow and gracile compared that of other Megalonychidae of similar size, such as Megalonyx or Ahytherium. The Zapote ground sloth was a subadult individual, based on the degree of suture fusion in the skull, faint temporal lines and the condition of the occlusion faces of the molariforms. To present knowledge Xibalbaonyx appears to have been endemic on the Yucatán Peninsula, suggesting a local microevolution on this karst desert during the Late Pleistocene.

Sarah R. Stinnesbeck, Eberhard Frey, Jerónimo Avíles Olguín, Wolfgang Stinnesbeck, Patrick Zell, Heinrich Mallison, Arturo González González, Eugenio Aceves Núñez, Adriana Velázquez Morlet, Alejandro Terrazas Mata, Martha Benavente Sanvicente, Fabio Hering and Carmen Rojas Sandoval. 2017. Xibalbaonyx oviceps, A New Megalonychid Ground Sloth (Folivora, Xenarthra) from the Late Pleistocene of the Yucatán Peninsula, Mexico, and Its Paleobiogeographic Significance. PalZ [Paläontologische Zeitschrift]. 91(2); 245–271.   DOI: 10.1007/s12542-017-0349-5

ResearchGate.net/publication/317185046_Xibalbaonyx_oviceps_a_new_megalonychid_ground_sloth_Folivora_Xenarthra_from_the_Late_Pleistocene_of_the_Yucatan_Peninsula_Mexico_and_its_paleobiogeographic_significance

Ancient species of giant sloth discovered in Mexico  ctv.news/M8rqjqN

Tízezer éve élt óriáslajhár maradványaira bukkantak Mexikóban http://www.origo.hu/tudomany/20170817-archeologia-tizezer-eve-elt-oriaslajhar-maradvanyaira-bukkantak-mexikoban.html

Kurzfassung: Die Unterwasserhöhlen auf der nordöstlichen Halbinsel Yukatan zeigen eine artenreiche Ansammlung von Großsäugern aus dem späten Pleistozän und frühen Holozän. Hier beschreiben wir die neue Gattung und Art eines Riesenfaultiers, Xibalbaonyx oviceps (Megalonychidae, Xenarthra), aus der Zapote Doline (Cenote) in der Nähe von Puerto Morelos im mexikanischen Bundesstaat Quintana Roo. Das Exemplar unterscheidet sich signifikant von allen bisher dokumentierten Megalonychidae einschließlich derjenigen von den Großen Antillen und aus Südamerika. Das neue Taxon deutet auf eine lokale karibische Radiation von Bodenfaultieren währen des Spätpleistozäns hin, die mit der Ausbreitung der Gruppe entlang des mexikanischen Korridors übereinstimmt.

Schlüsselwörter: Bodenfaultiere Pleistozän Yukatan Halbinsel Mexiko 

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

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شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Mammalogy • 2017] Ototylomys chiapensis • A New Species of Big-eared Climbing Rat, Genus Ototylomys (Cricetidae: Tylomyinae), from Chiapas, Mexico ---ScRaBBlE

Ototylomys chiapensis

 Porter, Beasley, Ordóñez-Garza, Lindsey, Rogers, Lewis-Rogers, Sites, & Bradley, 2017

La Pera Big-eared Climbing Rat; Rata orejuda trepadora de La Pera  ||  DOI: 10.1093/jmammal/gyx096 

sternberg.fhsu.edu

Abstract

An allopatric population of big-eared climbing rats (Ototylomys) from the Northern Highlands of Chiapas, Mexico, is described as a new species. The new taxon is part of a unique montane rainforest community that includes several other endemic species in the limited geographic range between the Río Grijalva and the Central Depression of Chiapas. Several cranial, external, and molecular characters distinguish this new species of big-eared climbing rat from its more widely distributed congener, Ototylomys phyllotis. We performed principal component and discriminate function analyses of cranial measurements, and found that specimens of the new species consistently could be distinguished from other Ototylomys with strong statistical support. Compared with exemplars of Ototylomys from elsewhere in their range, the new species possesses a karyotype that differs by 3 additional biarmed chromosome pairs, is fixed or nearly fixed for distinct electromorphs at 12 allozyme loci, and the mean genetic distance exceeds 14%, based on comparisons of the mitochondrial cytochrome b gene between the new species of Ototylomys and representatives of O. phyllotis. The restricted distribution in montane karst rainforest suggests that the species and its habitat may be a matter of conservation concern.

Taxonomy

Family Cricetidae Fischer, 1817

Subfamily Tylomyinae Reig, 1984

Tribe Tylomyini Reig, 1984

Genus Ototylomys Merriam, 1901

Ototylomys chiapensis, new species

La Pera Big-eared Climbing Rat; Rata orejuda trepadora de La Pera

Ototylomys phyllotis connectens: Baker et al. 1971 [1973]:82 (part, faunal report based on a specimen collected in 1969, here reidentified as O. chiapensis).

Ototylomys phyllotis connectens: Hall 1981:629 (part, marginal locality record based on Baker et al. 1971 [1973]).

Ototylomys phyllotis: Lawlor 1982:3 (part, karyotypic report based on Engstrom and Tucker, cited as in litt.).

Ototylomys sp.: Rogers, Engstrom, and Arellano 2004:439 (allozyme data from 2 specimens included in the present study).

Ototylomys sp. nov.: Dudley and Parish 2006:4 (referenced as endemic to El Pozo [= La Pera]).

Ototylomys chiapensis paratype (MVZ 161246).

Photograph by Duke S. Rogers.

sternberg.fhsu.edu

Etymology: The specific name refers to the species distribution in the Mexican state of Chiapas.

Distribution: Known only from the type locality and from 26 km N Ocozocoautla, both in the Mexican state of Chiapas (Figs. 1 and 2). The latter locality is in the municipality of Ocozocoautla de Espinoza at ca. 760 m elevation in the Reserva de la Biosféra Selva El Ocote, and is measured along the “old road” northwest of the city of Ocozocoautla de Espinoza (Johnson et al. 1976; Johnson and Savage 1995; Lamoreux et al. 2015).

Calvin A. Porter, Nia E. Beasley, Nicté Ordóñez-Garza, Laramie L. Lindsey, Duke S. Rogers, Nicole Lewis-Rogers, Jack W. Sites, Jr. and Robert D. Bradley. 2017. A New Species of Big-eared Climbing Rat, Genus Ototylomys (Cricetidae: Tylomyinae), from Chiapas, Mexico. Journal of Mammalogy. 98(5); 1310–1329.  DOI: 10.1093/jmammal/gyx096

ResearchGate.net/publication/319713352_A_new_species_of_big-eared_climbing_rat_genus_Ototylomys_Cricetidae_Tylomyinae_from_Chiapas_Mexico

Una población alopátrica de rata orejuda trepadora (Ototylomys) de las Tierras Altas del Norte de Chiapas, México se describe como una nueva especie. El nuevo taxón es parte de una comunidad única de bosque lluvioso montano que incluye varias especies endémicas en el área de distribución geográfica limitada entre el Río Grijalva y la Depresión Central de Chiapas. Varios caracteres craneales, externos, y moleculares distinguen la nueva rata orejuda trepadora de su congénere más ampliamente distribuido, Ototylomys phyllotis. Se realizaron análisis de componentes principales y de función discriminante de los caracteres craneales, y se encontró que los especímenes de La Pera fueron consistentemente distinguidos de otros Ototylomys con un fuerte soporte estadístico. En comparación con ejemplares de Ototylomys del rango, la nueva especie posee un cariotipo que difiere por 3 pares adicionales de cromosomas biarmados, está fijo o casi fijo por distintos electromorfos en 12 loci alozímicos. Adicionalmente, la media de la distancia genética comparada del gen mitochondrial citocromo b entre la nueva especie de Ototylomys y representantes de O. phyllotis, excede el 14%. La distribución restringida en el bosque lluvioso montano kárstico sugiere que la especie y su hábitat pueden ser de importancia para la conservación.

https://sternberg.fhsu.edu/2017/03/08/paratype-housed-at-sternberg/

New rat species discovered, named at Sternberg https://www.hayspost.com/2017/11/16/new-rat-species-discovered-named-at-sternberg/ via @hayspost

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

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شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Mammalogy • 2017] Sturnira adrianae • A New Polytypic Species of Yellow-shouldered Bats, Genus Sturnira (Chiroptera: Phyllostomidae), from the Andean and Coastal Mountain Systems of Venezuela and Colombia ---ScRaBBlE

Sturnira adrianae adrianae 

Molinari, Bustos, Burneo, Camacho, Moreno & Fermin, 2017

  DOI: 10.11646/zootaxa.4243.1.3

Photo: Jesús Molinari  news.mongabay.com  

Abstract

Sturnira is the most speciose genus of New World leaf-nosed bats (Phyllostomidae). We name Sturnira adrianae, new species. This taxon is born polytypic, divided into a larger subspecies (S. a. adrianae) widespread in the mountains of northern and western Venezuela, and northern Colombia, and a smaller subspecies (S. a. caripana) endemic to the mountains of northeastern Venezuela. The new species inhabits evergreen, deciduous, and cloud forests at mainly medium (1000–2000 m) elevations. It has long been confused with S. ludovici, but it is more closely related to S. oporaphilum. It can be distinguished from other species of Sturnira by genetic data, and based on discrete and continuously varying characters. Within the genus, the new species belongs to a clade that also includes S. oporaphilum, S. ludovici, S. hondurensis, and S. burtonlimi. The larger new subspecies is the largest member of this clade. The two new subspecies are the most sexually dimorphic members of this clade. The smaller new subspecies is restricted to small mountain systems undergoing severe deforestation processes, therefore can be assigned to the Vulnerable (VU) conservation category of the International Union for Conservation of Nature (IUCN).

Keywords: Mammalia, Andes, evolutionary species concept, geographic variation, morphometrics, sexual dimorphism

Sturnira adrianae adrianae, the larger and more widespread of the newly described Sturnira adrianae subspecies.

Photo: Jesús Molinari  

• Sturnira adrianae new species 

• Sturnira adrianae adrianae new subspecies 

Adriana’s Yellow-shouldered Bat 

Murciélago de Charreteras de Adriana

Diagnosis. Epaulettes (yellow shoulders) present. Lower molars with continuous lingual cusps. All four lower incisors well developed, bilobed. Upper middle incisor long, bilobed, pointed, strikingly protrudent, tip laterally diverging. Lower canine long, narrow. Upper premolars broad and long in labial view. Molars with no gaps between them. Zygomatic arch complete, not bowed outwards. Occiput low. Preorbital frontal ridges well developed. Foramen ovale touching the caudal pterygoid process.

 Distribution. Known from all the Andean and coastal mountain systems of Venezuela, except those east of the Unare Depression. Presumably, also distributed throughout the Cordillera Oriental in Colombia ..... 

Etymology. The epithet adrianae, a feminine noun in the genitive case, is dedicated to the memory of the Colombian-Venezuelan bat biologist, Adriana Ruiz, 1971–2012. Adriana was a charismatic, imaginative, and dedicated colleague. She published 14 papers and book chapters. Owing to her untimely departure, much of her most valuable research was left unpublished. Adriana had a particularly keen interest in species of Sturnira. We are privileged to name after her a member of the genus wandering in the environments in which she so joyfully conducted much of her field work.

• Sturnira adrianae caripana new subspecies 

Caripe Yellow-shouldered Bat 

Murciélago de Charreteras de Caripe

Diagnosis. Identical to that of S. a. adrianae, except for: 1) upper premolars narrower and shorter in labial view; 2) preorbital frontal ridges little developed; 3) foramen ovale not touching the caudal pterygoid process.

Distribution (Fig. 1). Known from four localities in the Turimiquire Massiff, and from two localities in the neighboring Paria Peninsula (Appendix). Presumably, endemic to the mountain ranges of northeastern Venezuela, east of the Unare Depression. 

Etymology. The epithet caripana [Carip(e) + -ana], a feminine adjectival toponym, is derived from Caripe, a town near the type locality made known to science in the book “Travels to the Equinoctial Regions of America, During the Years 1799–1804”, of the famous German explorer and naturalist Alexander von Humboldt.

 Jesús Molinari, Xiomar E. Bustos, Santiago F. Burneo, M. A. Camacho, S. A. Moreno & Gustavo Fermin. 2017. A New Polytypic Species of Yellow-shouldered Bats, Genus Sturnira (Mammalia: Chiroptera: Phyllostomidae), from the Andean and Coastal Mountain Systems of Venezuela and Colombia.   Zootaxa. 4243(1); 75–96.   DOI: 10.11646/zootaxa.4243.1.3

New leaf-nosed bat uncovered amidst burning habitat in Venezuela https://news.mongabay.com/2017/04/new-leaf-nosed-bat-uncovered-amidst-burning-habitat-in-venezuela via @mongabay

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.