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
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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.
A study of the Southeast Asian moles of the genus Euroscaptor based on a combined approach, viz. DNA sequence data combined with a multivariate analysis of cranial characters, has revealed a high cryptic diversity of the group. An analysis of mitochondrial cytochrome b gene and five nuclear genes has revealed two deeply divergent clades: the western one (E. klossi + E. malayana + E. longirostris from Sichuan + Euroscaptor spp. from northern Vietnam and Yunnan, China), and the eastern one (E. parvidens s.l. + E. subanura). The pattern of genetic variation in the genus Euroscaptor discovered in the present study provides support for the existence of several cryptic lineages that could be treated as distinct species based on their genetic and morphological distinctness and geographical distribution. The moles from southern China and northern Vietnam form three distinct groups. The specimens from Sichuan (including the one collected from the type locality of E. longirostris) were clearly distinct from the northwestern Vietnam and Yunnan samples that were previously attributed to this species. We argue that the real distribution of E. longirostris is restricted to Sichuan, northward of Yangtze River, whereas the populations occurring southward of this isolation barrier evidently represent a new species Euroscaptor orlovi sp. nov. (northwestern Vietnam and Yunnan, southern China). Moreover, Red River that divides the western and eastern parts of northern Vietnam beyond doubt separates the population of E. orlovi from the moles occurring in northeastern Vietnam (Vinh Phuc and Cao Bang provinces); the latter are described here asEuroscaptor kuznetsovi sp. nov. Yet, genetic data are in favour of a close affinity of E. subanura with E. parvidens. A combined analysis of both genetic and morphological data has revealed a strong geographic segregation of E. parvidens samples. The populations from Dalat Plateau (southern Vietnam), including the moles from Loc Bao, Bi Dup and Chu Yang Sin, form a well-supported clade and can be considered true E. parvidens. The specimens from central Vietnam (Kon Tum and Quang Nam provinces) are significantly different from them, yet their monophyly has been supported by the mtDNA only. The moles from central Vietnam have been described here as a new subspecies Euroscaptor parvidens ngoclinhensis ssp. nov. All the studied samples of E. subanura have shown a low genetic and morphological variability despite their wide geographic range.
Distribution: widely distributed in South Asia, occurring in China, Nepal, Laos, Vietnam, Myanmar, Thailand, and Peninsular Malaysia.
Composition: Euroscaptor klossi (Thomas, 1929), Euroscaptor longirostris (Milne-Edwards, 1870), Euroscaptor malayana (Chasen, 1940), Euroscaptor parvidens (Miller, 1940), Euroscaptor subanura Kawada et al., 2012, Euroscaptor orlovi sp. nov., and Euroscaptor kuznetsovi sp. nov. (see descriptions below). Probably, also includes Euroscaptor grandis Miller, 1940 and Euroscaptor micrura (Hodgson, 1841). The taxonomic status of “Talpa” cryptura Blyth, 1843 from Darjeeling, India remains obscure.
Euroscaptor orlovi sp. nov.
Diagnosis. Large-sized mole, comparable to E. longirostris. Pelage blackish brown. Tail long and club-shaped. Rostral part of skull elongated and narrow. Posterolingual border of P4 deeply concave. Anterior parts of auditory bullae flatted and straddling. A new species distinguished by the mitochondrial gene cytochrome b and five nuclear genes (BRCA1, BRCA2, ApoB, RAG1 and A2ab) (see Figs 2–4).
Etymology. The new species is named in honour of Dr. Nikolai L. Orlov (Zoological Institute, Russian Academy of Sciences, Saint Petersburg, Russia) in recognition of his remarkable contributions to the study of animals of Vietnam.
Distribution. Found in northern Vietnam (Lao Cai Province, Sa Pa District) and southern China (Yunnan Province). It may have a wider distribution in the highlands of northern Laos and in northwestern Vietnam, probably westward of Red River.
Euroscaptor kuznetsovi sp. nov.
Diagnosis. Large-sized mole, comparable to E. longirostris and E. orlovi sp. nov. Pelage blackish brown. Tail long and club-shaped. Rostral part of skull elongated and relatively wide. Posterolingual border of P4 deeply concave. Anterior parts of auditory bullae flatted and straddling. A new species distinguished by the mitochondrial gene cytochrome b and five nuclear genes (BRCA1, BRCA2, ApoB, RAG1 and A2ab) (see Figs 2–4).
Etymology. The new species is named in honour of Dr. German V. Kuznetsov (A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow) in recognition of his many contributions to the study of mammals of Vietnam.
Distribution. Distributed in north-eastern Vietnam. It is recorded from Vinh Phuc Province (Tam Dao) and Cao Bang Province (Nguyen Binh District). Found at the elevations of 750–950 m a.s.l. Probably, the record from Guangxi, south-eastern China (Hoffman and Lunde 2008) belongs to this species as well.
Euroscaptor parvidens ngoclinhensis subsp. nov.
Diagnosis. Small-sized mole, comparable only to E. subanura, and smaller on average in its external and cranial measurements than the nominotypical E. parvidens. The fourth upper premolar with a well developed parastyle. A new species distinguished by the mitochondrial gene cytochrome b (see Fig. 2).
Etymology. The subspecies is named after the Ngoc Linh Mountain in Kon Tum Province of Vietnam, from where it was collected for the first time.
Distribution. Known from the Central Highlands of Vietnam (Kon Tum and Quang Nam provinces). Probably, the moles from Gia Lai Province (Abramov et al. 2013a) belong to this subspecies.
E.D. Zemlemerova, A.A. Bannikova, V.S. Lebedev, V.V. Rozhnov and A.V. Abramov. 2016. Secrets of the Underground Vietnam: An Underestimated Species Diversity of Asian Moles (Lipotyphla: Talpidae: Euroscaptor) [ТАЙНЫ ПОДЗЕМНОГО ВЬЕТНАМА: НЕДООЦЕНЕННОЕ ВИДОВОЕ РАЗНООБРАЗИЕ АЗИАТСКИХ КРОТОВ (LIPOTYPHLA: TALPIDAE: EUROSCAPTOR)]. Proceedings of the Zoological Institute RAS. 320(2); 193–220. istina.msu.ru/publications/article/22015267
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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.
Hedgehogs in the genus Mesechinus (Family Erinaceidae), which include two currently recognized species (M. dauuricus and M. hughi), are distributed from northeast Mongolia to the upper Amur Basin in Russia and adjacent areas in northeast and northern China. In recent years, a population of Mesechinus hedgehogs was discovered from Mt. Gaoligong, southwestern Yunnan, China, far from the known distribution range of the genus. Furthermore, these hedgehogs are the only known population to be distributed at elevations higher than 2 100 m and in sympatry with gymnures. To evaluate the taxonomic status of these hedgehogs, we examined specimens representing Mesechinus taxa in China and further conducted morphometric and karyotypic analyses. Our results supported the existence of four species in China. Specifically, we identified the hedgehogs from Mt. Gaoligong as a new species, Mesechinus wangi sp. nov., and recognized M. miodon, previously considered as a synonym of either M. dauuricus or M. hughi, as a distinct species. Interestingly, we observed a supernumerary M4 on all specimens of Mesechinus wangi sp. nov., which is an extremely rare event in the evolution of mammalian dentition.
Keywords:Mesechinus, Taxonomy, Morphometrics, Inhibitory cascade, Karyotype, New species, Supernumerary molar
Common names: Gaoligong Forest Hedgehog (高黎贡林 猬, Gaoligong Linwei) or Wang’s Forest Hedgehog (王氏林 猬, Wangshi Linwei)
Holotype: KIZ 022028 (field number: 201012001), adult female collected from Gaoligongshan National Nature Reserve, Baoshan, Yunnan, China, on 1 September 2010 at an altitude of 2 215 m a.s.l.. Alcohol-preserved and cleaned skull are deposited in KIZ, CAS.
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Distribution: To date, this species is known only from three counties (Tengchong, Longling, and Longyang) of Baoshan in Yunnan, China, at elevations ranging from 2 200 m–2 680 m. The habitat is subtropical evergreen broad-leaved forest formed by a variety of vegetation, including Fagaceae, Lauraceae, Ericaceae, and Theaceae (Figure 8).
Comments: Population size is currently unknown. However, the known distribution is extremely small and located only within the Gaoligong National Nature Reserve. The species hibernates from middle of October to the following early April.
Huai-Sen Ai, Kai He, Zhong-Zheng Chen, Jia-Qi Li, Tao Wan, Quan Li, Wen-Huan Nie, Jin-Huan Wang, Wei-Ting Su and Xue-Long Jiang. 2018. Taxonomic Revision of the Genus Mesechinus (Mammalia: Erinaceidae) with Description of A New Species. Zoological Research. DOI: 10.24272/j.issn.2095-8137.2018.034
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.
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
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.
