We describe a new species of the genus Ninia from the Chocó-Magdalena biogeographic province, which was previously reported as a distinct population of N. maculata or as N. atrata from the western slopes of the Cordillera Occidental of Colombia. The new species is similar to N. atrata, N. celata, N. espinali, N. franciscoi, and N. maculata. It shares the following characteristics with the species mentioned above: 19 dorsal scale rows without reductions; dorsal ground color black or dark brown; white or cream occipital nuchal collar. However, it is easily distinguished from all other congeners because it has a non-regular color pattern in the ventral surfaces of the head and body, subcaudal surface homogeneously black or dark brown, two nasal scales, and one lateral projection ornamented with a large basal hook-shaped spine that is larger than any other spine on the hemipenial body. The presence of a lateral projection on the hemipenial body makes the new species the only member of the genus from South America that shares this feature with its Central American congeners. This feature suggests a closer relationship with this linage. Finally, our results indicate that proper and careful revision of the Ninia atrata species complex will help to understand and clarify the taxonomic composition of the genus.
Keywords: Reptilia, External morphology, Biogeography of the Colombian Pacific lowlands, Hemipenis, Ninia atrata, Ninia maculata, taxonomy
Ninia teresitae sp. nov.
FIGURE 2. General view of the holotype (ICN 12527) of Ninia teresitae sp. nov., in life (A), dorsal (B) and ventral (C) views after its preservation.
Etymology. The specific epithet teresitae represent the Latin translation of the nickname from the Spanish “Teresita” and is given in honor to the grandmother of the first author, Maria Teresa Guerrero (1915−2013). “Teresita” was one of the most influential persons in her grandson’s life, who never failed to support him and encouraged his endless passion for snakes.
Teddy Angarita-Sierra and John D. Lynch. 2017. A New Species of Ninia (Serpentes: Dipsadidae) from Chocó-Magdalena Biogeographical Province, western Colombia. Zootaxa. 4244(4); 478–492. DOI: 10.11646/zootaxa.4244.4.2
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.
Figure 2. Photographs of some Ecuadorian species of Atractus in life: A. carrioni MZUTI 4194 (a), MZUTI 4195 (b), A. duboisi MZUTI 3640 (c), A. dunni MZUTI 4318 (d), A. dunni MZUTI 2189 (e), A. elaps AMARU SN (f), A. gigas MZUTI 3286 (g), A. iridescens MZUTI 3680 (h), A. iridescens QCAZ 8072 (i)
We present a molecular phylogeny of snake genus Atractus, with an improved taxon sampling that includes 30 of the 140 species currently recognized. The phylogenetic tree supports the existence of at least three new species in the Pacific lowlands and adjacent Andean slopes of the Ecuadorian Andes, which we describe here. A unique combination of molecular, meristic and color pattern characters support the validity of the new species. With the newly acquired data, we propose and define the A. iridescens species group, as well as redefine the A. roulei species group. The species A. iridescens is reported for the first time in Ecuador, whereas A. bocourti and A. medusa are removed from the herpetofauna of this country. We provide the first photographic vouchers of live specimens for A. multicinctus, A. paucidens and A. touzeti, along with photographs of 19 other Ecuadorian Atractus species. The current status of A. occidentalis and A. paucidens is maintained based on the discovery of new material referable to these species. With these changes, the species number reported in Ecuador increases to 27, a number that is likely to increase as material not examined in this work becomes available and included in systematic studies.
Keywords: Pacific lowlands, biodiversity, Ecuador, groundsnakes, Atractus, phylogeny, new species
Figure 2. Photographs of some Ecuadorian species of Atractus in life: A. carrioni MZUTI 4194 (a), MZUTI 4195 (b), A. duboisi MZUTI 3640 (c), A. dunni MZUTI 4318 (d), A. dunni MZUTI 2189 (e), A. elaps AMARU SN (f), A. gigas MZUTI 3286 (g), A. iridescens MZUTI 3680 (h), A. iridescens QCAZ 8072 (i), A. iridescens MZUTI 4697 (j), A. iridescens MZUTI 3548 (k), A. major MZUTI 4973 (l), A. microrhynchus MZUTI 5109 (m), A.modestus (n), A. multicinctus MZUTI 5106 (o), A. occidentalis MZUTI 1385 (p), A. occidentalis MZUTI 3323 (q), A. paucidens MZUTI 5102 (r), A. resplendens MZUTI 3996 (s), A. roulei MZUTI 4503 (t), A. savagei MZUTI 4916 (u), A. snethlageae (v), A. touzeti ANF 2390 (w), and A. typhon MZUTI 5110.
Figure 2. Photographs of some Ecuadorian species of Atractus in life: A. carrioni MZUTI 4194 (a), MZUTI 4195 (b), A. duboisi MZUTI 3640 (c), A. dunni MZUTI 4318 (d), A. dunni MZUTI 2189 (e), A. elaps AMARU SN (f), A. gigas MZUTI 3286 (g), A. iridescens MZUTI 3680 (h), A. iridescens QCAZ 8072 (i)
New taxa and systematic arrangements derived from the analyses
We seek here to only name or redelimit Atractus species groups that are supported in our molecular phylogeny and share features of their coloration pattern and lepidosis. The first such groups is the clade comprising A. cerberus sp. n., A. dunni, A. esepe sp. n., A. iridescens, A. microrhynchus and A. occidentalis. The other is the one comprising A. carrioni, A. lehmanni, A. pyroni sp. n. and A. roulei.
Atractus iridescens species group
Content.A. cerberus sp. n., A. dunni, A. esepe sp. n., A. iridescens, A. microrhynchus and A. occidentalis
Atractus roulei species group
Content.Atractuscarrioni, A. lehmanni, A. pyroni sp. n. and A. roulei.
Figure 2. Photographs of some Ecuadorian species of Atractus in life: A. iridescens MZUTI 4697 (j), A. iridescens MZUTI 3548 (k), A. major MZUTI 4973 (l), A. microrhynchus MZUTI 5109 (m), A.modestus (n), A. multicinctus MZUTI 5106 (o), A. occidentalis MZUTI 1385 (p), A. occidentalis MZUTI 3323 (q), A. paucidens MZUTI 5102 (r), A. resplendens MZUTI 3996 (s), A. roulei MZUTI 4503 (t), A. savagei MZUTI 4916 (u), A. snethlageae (v), A. touzeti ANF 2390 (w), and A. typhon MZUTI 5110.
Figure 5. Adult male holotype MZUTI 4330 (a) and adult male paratopotype (b) of Atractus cerberus MZUTI 5108.
Atractus cerberus sp. n.
Proposed standard English name: Cerberus Groundsnake
Proposed standard Spanish name: Tierrera cancerbera
Natural history: The two known specimens of Atractuscerberus were found in an isolated patch of deciduous lowland forest surrounded by dry lowland shrubland. MZUTI 4330 was found active on leaf litter at 19h29, in 80% closed canopy secondary forest far from streams. The night was warm and there was drizzle the night before. MZUTI 5108 was found crossing a forest trail close to an open area at 10h00 during a sunny morning after a rainy night.
Distribution: Known only from the type locality, Pacoche, in the Ecuadorian province of Manabí at 280–324 m (Fig. 3). This locality is 3 km airline distance from the shoreline.
Etymology: The specific epithet “cerberus” is derived from the name of the Greek monster Kérberos. In Greek mythology, Kérberos is a monstrous multi-headed dog that guards the gates of the underworld, preventing the dead from leaving. Here, we use this word in allusion to the type locality, at the gates of the newly formed “Refinería del Pacífico”, a massive industrial oil-processing plant that can easily be likened to the underworld.
Atractus esepe sp. n.
Proposed standard English name: Indistinct Groundsnake
Proposed standard Spanish name: Tierrera indistinta
Natural history: The two known specimens of Atractusesepe were found actively foraging among soil and roots in secondary evergreen lowland forest at least 400 m from the nearest natural body of water. They were found by night at 20h00 after a warm, sunny day.
Distribution: Known only from the type locality, Caimito, in the Ecuadorian province of Esmeraldas at 102 m (Fig. 3). This locality is 1.3 km airline distance from the shoreline.
Etymology: The specific epithet esepe is derived from the Spanish pronunciation of “sp.”, which is the abbreviation for the Latin word species. Here, we use this word in allusion to how the majority of Ecuadorian researchers refer to Atractus specimens found in the field.
Figure 7. Adult female holotype of Atractus pyroni. MZUTI 5107. Scale = 1 cm.
Atractus pyroni sp. n.
Proposed standard English name: Pyron’s Groundsnake
Proposed standard Spanish name: Tierrera de Pyron
Natural history: The only known specimen of Atractuspyroni was found dead on a dirt road surrounded by silvopastures and remnants of native montane cloudforest.
Distribution: Known only from the type locality, between Balzapamba and Bilován, in the Ecuadorian province of Bolívar at 2026 m (Fig. 7).
Etymology: Named after R. Alexander Pyron, one of the most prolific contemporary herpetologists, in recognition of his invaluable contribution to systematics and evolution of the world’s reptiles.
Alejandro Arteaga, Konrad Mebert, Jorge H. Valencia, Diego F. Cisneros-Heredia, Nicolás Peñafiel, Carolina Reyes-Puig, José L. Vieira-Fernandes and Juan M. Guayasamin. 2017. Molecular Phylogeny of Atractus (Serpentes, Dipsadidae), with Emphasis on Ecuadorian Species and the Description of Three New Taxa. ZooKeys. 661: 91-123. DOI: 10.3897/zookeys.661.11224
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.
I describe a new species of dipsadine snake of the genus Rhadinella from an isolated mountain range in east-central Honduras. This population previously was identified as R. lachrymans. Based on morphological similarities, the closest relative of the new species apparently is R. lachrymans. The new species differs from R. lachrymans by the presence of a distinct, complete, white line that borders the upper edge of a dark brown lateral stripe, a dark brown postorbital bar or spot that is separated from the orbit, in reaching a longer adult male size, and the presence of fewer subcaudal scales in males. All known localities for R. lachrymans are from pine-oak forest on or near the Pacific versant of Guatemala and Chiapas, Mexico. Conversely, the new species occurs in broadleaf rainforest, including elfin forest, on the Atlantic versant of Honduras. In addition, the nearest known locality for R. lachrymans is approximately 500 km to the west from that of the new species, and thus geographical distribution and ecological requirements support the representation of two species.
Key Words: Atlantic versant, Babilonia Mountain, Department of Olancho, external morphology, Rhadinaea godmani group
Fig. 1. The adult male holotype (USNM 535870) of Rhadinella lisyae sp. nov. in life (TOL 414 mm). Note the white line bordering the dark brown lateral stripe, and the dark brown postorbital bar separated from the orbit by white pigment.
Fig. 2. An adult male paratype (USNM 565821) of Rhadinella lisyae sp. nov. in life (TOL 351 mm).
Fig. 1. The adult male holotype (USNM 535870) of Rhadinella lisyae sp. nov. in life (TOL 414 mm). Note the white line bordering the dark brown lateral stripe, and the dark brown postorbital bar separated from the orbit by white pigment. Fig. 2. An adult male paratype (USNM 565821) of Rhadinella lisyae sp. nov. in life (TOL 351 mm) showing the same characters as the holotype in Fig. 1.
photos: James R. McCranie
Distribution and habitat: Rhadinella lisyae is known from broadleaf rainforest and elfin forest (Premontane Wet Forest and Lower Montane Wet Forest formations; Holdridge, 1967) at elevations from 1,300 m to 2,290 m, and only from the Sierra de Agalta in east-central Honduras (Fig. 5). ...
Etymology: The specific name lisyae is a matronym for my daughter Lisy, who has never shown fear of small non-venomous snakes and enjoys holding them.
James R. McCranie. 2017. A New Species of Rhadinella (Serpentes: Dipsadidae) from the Sierra de Agalta, Honduras. Mesoamerican Herpetology.4(3); 244–253.
Resumen: Describo una nueva especie de la serpiente dipsadina del género Rhadinella de una cadena montañosa aislada en el este-centro de Honduras. Esta población previamente fue identificada como R. lachrymans. Basándose en similaridades morfológicas, el pariente más cercano de la nueva especie aparentemente es R. lachrymans. La nueva especie se difiere de R. lachrymans por la presencia de una línea blanca distinta y completa que bordea el borde superior de la franja lateral de color café oscuro, una barra postorbital de color café oscuro que está separada de la órbita, en alcanzar un mayor tamaño en los varones adultos, y en tener menos escamas subcaudales en los machos. Todas las localidades conocidas para R. lachrymans son de bosque de pino-encino en o cerca de la vertiente del Pacifico de Guatemala y Chiapas, México. Al contrario, la nueva especie ocurre en la selva tropical de hoja ancha, incluyendo el bosque enano, en la vertiente del Atlántico de Honduras. Además, la localidad más cercana conocida para R. lachrymans está aproximadamente a 500 km al oeste de la nueva especie, y por lo tanto la distribución geográfica y los requisitos ecológicos apoyan la representación de dos especies.
Palabras Claves: Departamento de Olancho, grupo de Rhadinaea godmani, Montaña de Babilonia, morfología externa, vertiente del Atlántico
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 genus Thamnodynastes Wagler, 1830 is currently composed by nineteen species of viviparous and opistoglyphous snakes, largely distributed in South America, from Colombia to Argentina. The analyses of a large data set of specimens from South American collections evidenced one unknown species from the open formations of central and northeastern Brazil, which is described here. The new species is distinguished from all its congeners by a unique combination of characters, including 19 dorsal rows of smooth scales on the midbody, the smallest number of subcaudals in the genus, and a distinct hemipenial morphology and coloration pattern. To define this new species we present robust diagnostic characters and discuss comparisons with other species of this diverse and taxonomically complex genus of Neotropical snakes.
Figure 2. Detail view of the preserved holotype of Thamnodynastes phoenix sp. n. (IBSP 87527): (A) dorsal, (B) ventral, and (C) dextral view of the head. Scale bar: 1 cm.
Diagnosis: Thamnodynastes phoenix sp. n. differs from all other species of the genus by the following combination of characters: 19/19/15 dorsal rows with smooth scales; maximum SVL 495 mm; maximum TL 136 mm; ventral scales 133 to 159; subcaudals 40 to 66; coloration of the ventral portion of the head extremely spotted with dark-brown dots, infralabials and chin shields with a white centre. Darkening intensifies on the infralabial borders, outlining a clear contrast of lateral and dark margins (Fig. 2). Two pairs of noncontinuous longitudinal dark ventral stripes, darker at the transition of the venter and the lateral sides, with a more conspicuous black spot on the apex of each ventral scale; tip of the tail lighter than the overall body coloration without blotches or dots, almost white in juvenile specimens.
Distribution:Thamnodynastes phoenix sp. n. occurs on open savannas of Brazil, predominantly the Caatinga formation of northeastern Brazil, in the states of Alagoas, Bahia, Ceará, Paraíba, Pernambuco, Piauí, Rio Grande do Norte, and Sergipe, extending to the Caatinga enclaves of the region of Jaíba, Minas Gerais. It also encompasses the Cerrado in central Brazil, in the states of Goiás, Tocantins and Minas Gerais (Fig. 6). Natural History: The inspection of a few dissected specimens confirmed the viviparous reproductive mode of this species, as expected for members of the tribe Tachymenini. The specimen MZUSP 10462 (SVL 407 mm) exhibited eight well-developed embryos. The species is predominately terrestrial and nocturnal, feeds on frogs, and is associated with different types of Caatinga and Cerrado vegetation (Guedes et al. 2014). Etymology: The specific epithet phoenix (Greek: φοῖνιξ phoinix; Latin: phoenix, phœnix, fenix) refers to the mythological bird that dies in combustion and subsequently rises from ashes in a cycle of life and death. This name acknowledges the fact that the previously selected holotype, used originally for the species description, was lost in the fire that consumed 90% of the Herpetological Collection “Alphonse Richard Hoge” of the Instituto Butantan, on March 15, 2010. Some specimens, including two paratypes, were rescued from the fire, and the data previously collected from the lost specimens were kept and used herein.
Figure 2. Detail view of the preserved holotype of Thamnodynastes phoenix sp. n. (IBSP 87527): (A) dorsal, (B) ventral, and (C) dextral view of the head. Scale bar: 1 cm. Figure 1. Dorsal pattern of the preserved holotype (IBSP 87527). Scale bar: 1 cm.
Francisco L. Franco, Vivian C. Trevine, Giovanna G. Montingelli and Hussam Zaher. 2017. A New Species of Thamnodynastes from the Open Areas of central and northeastern Brazil (Serpentes: Dipsadidae: Tachymenini). SALAMANDRA.53(3); 339-350.
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.
A new genus and species of colubroid snake is described from the isolated highlands of western Chiapas. This enigmatic little snake possesses a unique suite of characters that defies placing it in any known genus and clearly distinguishes it from all known genera. Several of the most unusual features include subcaudals undivided throughout the length of the tail and a simple hemipenis completely adorned with calyces and having a sulcus spermaticus that remains unbifurcated until the apical portion of the organ. Neither of these characteristics is known for any other colubroid of the Western Hemisphere. Consideration of morphology places the new snake in the Dipsadidae and suggests that Adelphicos, Atractus, Geophis, and Chapinophis are among its closest relatives.
FIG. 1. Cenaspis aenigma (holotype, UTA R-10544, 258 mm total length), drawing reconstructing species in life.
Cenaspis, new genus
Etymology.— The generic name is derived from the Latin cena, meaning dinner, and aspis, meaning a kind of snake, in reference to predation on the single known individual of this snake. The name taken literally means ‘‘dinner snake.’’
Cenaspis aenigma, new species
Etymology.— From the Latin aenigma meaning a riddle or mystery.
Jonathan A. Campbell, Eric N. Smith and Alexander S. Hall. 2018. Caudals and Calyces: The Curious Case of a Consumed Chiapan Colubroid. Journal of Herpetology. 52(4); 459-472. DOI: 10.1670/18-042
Resumen: Se describe un nuevo género y especie de serpiente colubrina de las montañas aisladas del oeste de Chiapas. Esta enigmática y pequeña serpiente posee un conjunto único de caracteres que impide su asignación a cualquier otro género y claramente la distingue de cualquier género conocido. Varios de las características inusuales incluyen subcaudales no divididas a lo largo de toda la cola y un hemipene simple, completamente cubierto de cálices, y con un surco espermático que permanece no bifurcado hasta el ápice del órgano. Ninguna de estas características es conocida de cualquier colúbrido en el hemisferio occidental. Examen de morfología sugiere que la nueva serpiente pertenece a la familia Dipsadidae y su afinidad esta con Adelphicos, Atractus, Geophis, y Chapinophis.
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.
We describe a new species of the genus Apostolepis found near São Salvador Hydroelectric Power Plant, municipality of São Salvador do Tocantins, in the central Cerrado ecoregion. The new species is distinguished from its congeners by the following combination of characters: presence of eleven dorsolateral stripes, five infralabial scales and the lack of preoculars scales. The new species shares some external characteristics mainly with A. arenaria, A. gaboi and A. nelsonjorgei, with which it is compared.
Keywords: Reptilia, Apostolepis arenaria, A. gaboi, A. nelsonjorgei, Color pattern, Pholidosis, Skull osteology, Taxonomy
FIGURE 1. Dorsal (A) and ventral (B) views of the body; ventral (C), dorsal (D) and (E) lateral views of the head; dorsal (F), lateral (G) and middle views of the body; and dorsal (H) and ventral (I) views of the holotype (CEPB 6554) of Apostolepis adhara. Scale bar = 5 mm.
Apostolepis adhara sp. nov.
Etymology. The specific epithet “adhara” refers to the name of the star Epsilon Canis Majoris (ε CMa), from the constellation of Canis Major, which means “maidens” or "(the) virgins" in Arabic (Al ʽAdhārā) (Allen 1963). In the Brazilian flag, this star represents the state of Tocantins. Curiously, Adhara is the second brightest star of its constellation, as well as the Cerrado, corresponds to the second largest biome in South America.
We suggest the vernacular name "São Salvador burrow-snake".
Daniella França, Fausto E. Barbo, Nelson J. Silva-Júnior, Helder L. R. Silva and Hussam Zaher. 2018. A New Species of Apostolepis (Serpentes, Dipsadidae, Elapomorphini) from the Cerrado of Central Brazil. Zootaxa. 4521(4); 438–552. DOI: 10.11646/zootaxa.4521.4.3
Resumo: Descrevemos uma nova espécie do gênero Apostolepis, encontrada próxima à Hidrelétrica de São Salvador, Município de São Salvador do Tocantins, no centro da Ecoregião Cerrado. A nova espécie distingue-se de seus congêneres pelas seguinte combinação de caracteres: presença de onze estrias dorsolaterais, cinco escamas infralabiais e ausência das escamas preoculares. A espécie nova compartilha algumas características externas principalmente com A. arenaria, A. gaboi e A.nelsonjorgei, com as quais é detalhadamente comparada.
Palavras-chave: Apostolepis arenaria, A. gaboi, A. nelsonjorgei, folidose, padrão de coloração, taxonomia
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.
Content of the dipsadid genus Rhadinaea has changed considerably since Myers’ 1974 revision. Three species groups are recognized currently in the genus. Our fieldwork in Oaxaca in June 2018 produced a single specimen of Rhadinaea considered to represent a new taxon. This new species is described from converted Premontane Wet Forest in the municipality of Santa Catarina Juquila in the Sierra Madre del Sur of southern Oaxaca, Mexico. It is most closely related to Rhadinaea laureata, from which it can be distinguished easily by color pattern and scutellation, and represents a species group distinct from the other three occupying the genus.
Keywords: Morphology, new serpent species, Santa Catarina Juquila municipality, Southern Mexico, taxonomy
Figure 2. Head and anterior portion of body of holotype of Rhadinaea eduardoi.
Figure 3. Holotype of Rhadinaea eduardoi in life.
Rhadinaea eduardoi sp. n.
Common name: English: Eduardo’s forest snake.
Spanish: Hojarasquera de Eduardo
Diagnosis: A snake of the genus Rhadinaea that can be distinguished from all congeners by the following combination of morphological features: supralabials 7, with 3rd and 4th entering orbit; 120 ventrals; 71 subcaudals; one subpreocular (lower preocular); 17 dorsal scales throughout body; a head pattern lacking postorbital pale markings but having a pale line extending from the lower rear quadrant of the eye to the ultimate supralabial and slightly beyond, and a midbody dorsal color pattern of a lateral series of black dots in the lower apex of the scales of row V and a middorsal line confined to the middorsal scale row consisting of a series of disjunct spots on the posterior apex of otherwise dark brown scales.
Etymology: This species is named in honor of Eduardo Mata-Silva, collector of the holotype. Eduardo is the younger brother of the senior author of this paper, is a resident of Río Grande, Oaxaca, and is a highly valued member of our field crew working in Oaxaca. He also outshines the rest of the crew when it comes to finding snakes, as evidenced by his discovery of the holotype of the snake described herein.
Habitat and natural history observations: Rhadinaea eduardoi is resident in an area of converted Premontane Wet Forest, which presently supports a plantation of shade-grown coffee (Fig. 5). The holotype was found active at 1800 hrs on leaf litter approximately 10 m from a stream after a very light rain. Other herpetofaunal species encountered at this site were the anurans Craugastor pygmaeus, Ptychohyla leonhardschultzei, and Exerodonta sumichrasti, and the lizards Norops sp. and Holcosus undulatus.
Figure 5. Habitat where holotype of Rhadinaea eduardoi was found.
Vicente Mata-Silva, Arturo Rocha, Aurelio Ramírez-Bautista, Christian Berriozabal-Islas and Larry David Wilson. 2019. A New Species of Forest Snake of the Genus Rhadinaea from Tropical Montane Rainforest in the Sierra Madre del Sur of Oaxaca, Mexico (Squamata, Dipsadidae). ZooKeys. 813: 55-65. DOI: 10.3897/zookeys.813.29617
Resúmen: La conformación del género Rhadinaea ha cambiado considerablemente desde la revisión de Myers en 1974. Tres grupos de especies son reconocidos actualmente en el género. Nuestro trabajo de campo en Oaxaca en junio de 2018 produjo un espécimen de Rhadinaea que consideramos que representa un nuevo taxón. Describimos esta nueva especie de bosque húmedo premontano en el Municipio de Santa Catarina Juquila en la Sierra Madre del Sur en el sur de Oaxaca, México. Esta especie está más estrechamente relacionada con Rhadinaea laureata, de la cual se puede distinguir fácilmente por medio del patrón de color y escutelación, y representa un grupo distinto a los tres que forman parte del género.
Palabras claves: Morfología, nueva especie de serpiente, municipalidad de Santa Catarina Juquila, el sur de México, taxonomía
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.
