[Herpetology • 2017] Cryptic and Non-Cryptic Diversity in New Guinea Ground Snakes of the Genus Stegonotus Duméril, Bibron and Duméril, 1854 (Squamata: Colubridae): A Description of Four New Species ---ScRaBBlE

[upper]  Stegonotus iridis

[lower] Stegonotus derooijae

(a) Stegonotus cucullatus, (c) Stegonotus modestus, (e) Stegonotus parvus

Ruane, Richards, McVay, et al. 2017.  DOI:  10.1080/00222933.2017.1391959

Photos from Christopher C. Austin (a, c, e).  @Sara_and_Snakes

ABSTRACT

The island of New Guinea has been identified as biologically megadiverse but many taxa are still poorly known. This is especially the case for many of the island’s snakes, which by their very nature can be difficult to collect and study. Here we examine the phylogenetic and phylogeographic structure of a poorly studied snake genus, Stegonotus, focusing on the species of New Guinea; until now, Stegonotus has never been examined using modern phylogenetic methods. Using molecular data from 49 individuals representing eight of the ten described species, and including all New Guinea taxa, we estimate a multilocus phylogeny and examine population structure to help identify undescribed taxa. We use morphological data from the corresponding museum vouchered specimens (where available) and also examine additional specimens for taxa not included in the molecular data set to determine morphological differences among putative taxa. We find molecular evidence for four new species of Stegonotus, both morphologically obvious and cryptic, and describe them herein. The recognition of these four species indicates that Stegonotus diversity has been previously underestimated and also suggests that there are likely additional undescribed taxa within the genus. These four taxa increase the number of described species by 40% and further confirm New Guinea as the centre of diversity for the genus.

KEYWORDS: Australasia, colubrine, Indonesia, integrative taxonomy, phylogenetics

Figure 1. Photographs of six New Guinea Stegonotus species in life including voucher numbers:
 (a) Stegonotus cucullatus LSUMZ 94371, (b) Stegonotus diehli LSUMZ 92345, (c) Stegonotus modestus LSUMZ 92327, (d) Stegonotus heterurus BPBM 22556, (e) Stegonotus parvus LSUMZ 92335, (f) Stegonotus guentheri LSUMZ 94386.

Photos from Christopher C. Austin (a, b, c, e, f) and F. Kraus (d). 

Ruane, Richards, McVay, et al. 2017.  DOI:  10.1080/00222933.2017.1391959
@Sara_and_Snakes

 facebook.com/LSUScience/posts/1475337432514763

  Stegonotus iridis sp. nov. SAMA R70466 

  Photos from Stephen J. Richards.

Photographs of holotype Stegonotus iridis sp. nov. MZB.Ophi.3306; dorsal of body, ventral of body.

 Photos from Stephen J. Richards.

Stegonotus iridis sp. nov.

Etymology: The species epithet is a noun in apposition and taken from the Latin word for rainbow. It refers to the high level of iridescence shown both dorsally and ventrally by this species. 

Natural history and distribution: Currently known only from the Raja Ampat islands of Batanta, Salawati and Waigeo in eastern Indonesia where all of the animals encountered were active on the forest floor in moderately to heavily disturbed lowland (< 100 m asl) rainforest at night. The pale colour of this species made them extremely conspicuous against the dark forest floor. 

Stegonotus derooijae sp. nov. MZB.Ophi.3288

 Photos from Stephen J. Richards.

Stegonotus derooijae sp. nov.

Etymology: The species epithet is a noun in the genitive case and is a patronym in honour of Dr Nelly De Rooij, who described many taxa from New Guinea and Indonesia, including Stegonotus florensis. 

Natural history and distribution: Currently known only from the Raja Ampat islands of Batanta, Salawati and Waigeo in eastern Indonesia. This small, slender species was active on the forest floor in moderately to heavily disturbed lowland (< 100 m above sea level) rainforest at night. At each site it occurred in sympatry with S. iridis sp. nov., described above. 

Stegonotus melanolabiatus sp. nov.

Etymology: The species epithet comes from the Greek melano meaning black or dark and the Latin word labia for lips. The name refers to the dark coloration of the labial scales of this species.

 Natural history and distribution: No information is known about the natural history of S. melanolabiatus. Stegonotus melanolabiatus sp. nov. is found south of the central mountain ranges (Figure 3) in Southern Highlands and Chimbu Provinces of Papua New Guinea. It may also occur in other provinces and regions south of the central cordillera across New Guinea. 

Stegonotus admiraltiensis sp. nov.

Etymology: The species epithet refers to the Admiralty Islands where this species is found, an archipelago of 18 islands to the north of New Guinea, comprising Manus Province, Papua New Guinea. 

Natural history and distribution: As with all New Guinea Stegonotus, S. admiraltiensis sp. nov. is nocturnal. All four specimens were collected at night as they were moving on the forest floor on the leaf litter. Typical for Stegonotus, once picked up S. admiraltiensis sp. nov. rapidly attempted to bite the collector’s hand and writhed violently in a side-to-side motion. Nothing more is known about the natural history or ecology of S. admiraltiensis sp. nov. Stegonotus admiraltiensis sp. nov. is found on the islands of Rambutyo and Los Negros in Manus Province of Papua New Guinea. Based on descriptions of similar specimens from Manus (McDowell 1972) and recent collections there by SJR that will be registered in the near future (Richards and Aplin 2015), we conclude that S. admiraltiensis sp. nov. is also found on Manus Island proper and that all specimens of Stegonotus from the Admiralty Islands are S. admiraltiensis sp. nov. 

Sara Ruane, Stephen J. Richards, John D. McVay, Burhan Tjaturadi, Keliopas Krey and Christopher C. Austin. 2017. Cryptic and Non-Cryptic Diversity in New Guinea Ground Snakes of the Genus Stegonotus Duméril, Bibron and Duméril, 1854: A Description of Four New Species (Squamata: Colubridae).  Journal of Natural History. DOI:  10.1080/00222933.2017.1391959

ResearchGate.net/publication/321315773_New_Guinea_ground_snakes_of_the_genus_Stegonotus 
sararuane.wordpress.com/about/publications
Naming a New Guinea Snake Species, Honoring a Legacy http://lsuscienceblog.squarespace.com/blog/2017/12/5/naming-a-new-guinea-snake-species-honoring-a-legacy
twitter.com/@Sara_and_Snakes/status/935534748381974528

 facebook.com/LSUScience/posts/1475337432514763

  

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

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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.

[Herpetology • 2018] Cyclocorinae (New Subfamily) • Discovery of An Old, Archipelago-wide, Endemic Radiation of Philippine Snakes ---ScRaBBlE

Subfamily Cyclocorinae

 Weinell & Brown, 2017.

   DOI: 10.1016/j.ympev.2017.11.004 

Highlights

• Three snake genera placed into molecular phylogeny for first time

• Hypothesized close relationship between Myersophis and Oxyrhabdium confirmed

• Hypothesized close relationship between Cyclocorus and Hologerrhum confirmed

• Novel, Philippine-endemic clade of snakes described as new subfamily Cyclocorinae

• Diversification within Cyclocorinae inconsistent with Pleistocene “species-pump”

Abstract

The extraordinarily rich land vertebrate biodiversity of the Philippines includes at least 112 species of terrestrial snakes (74% of which are endemic to the archipelago) in 41 genera (12% endemic). Endemic Philippine snake genera include Cyclocorus (two species), Hemibungarus (three species), Hologerrhum (two species), Oxyrhabdium (two species), and Myersophis (monotypic). Although Hemibungarus and Oxyrhabdium have been included in previous species-level phylogenies, the affinities of the other three Philippine endemic genera are completely unknown. We generated novel DNA sequences for six species from four genera and analyzed these in conjunction with data from earlier studies to infer a phylogeny for the group containing Colubridae, Elapoidea (Elapidae + Lamprophiidae), and Homalopsidae. We present a novel phylogenetic result that strongly supports the existence of an entirely endemic Philippine radiation of elapoid snakes that originated 35–25 million years ago. We provide a revised, phylogeny-based classification to accommodate the new clade, transfer Cyclocorus, Hologerrhum, and Myersophis to Lamprophiidae, and provide the first estimate of the evolutionary relationships among these genera and the related Oxyrhabdium, setting the stage for future investigation of this entirely endemic, novel Philippine elapoid radiation.

Keywords: Cyclocorinae; Cyclocorus; Hologerrhum; Lamprophiidae; Myersophis; Oxyrhabdium

Representative taxa of the Philippine elapoid radiation, subfamily Cyclocorinae: 
 Myersophis alpestris (holotype, KU 203012),  Oxyrhabdium modestum (RMB 19937),Cyclocorus lineatus (KU 275744), Oxyrhabdium leporinum leporinum (KU 322339)

[map] Geographic distribution of Cyclocorinae new subfamily in the Philippines, including Cyclocorus, Hologerrhum, Myersophis, Oxyrhabdium, and the unnamed lineage.

  DOI: 10.1016/j.ympev.2017.11.004  

Fig. 1. Representative taxa of the Philippine elapoid radiation, subfamily Cyclocorinae:
(A) Oxyrhabdium leporinum leporinum (KU 322339), (B) Oxyrhabdium leporinum visayanum, (C) Oxyrhabdium modestum (Uncataloged KU specimen [RMB 19937]), (D) Hologerrhum philippinum (KU 330056), (E) Cyclocorus lineatus (KU 275744), (F) Cyclocorus nuchalis (KU 344159), (G) and (H) Myersophis alpestris (holotype, KU 203012).

Cyclocorinae (new subfamily)

Type genus: Cyclocorus Duméril, Bibron, and Duméril, 1854

Type species: Lycodon lineatus Reinhardt, 1843

Content: Cyclocorinae includes four endemic Philippine genera:

Genus Cyclocorus: Cyclocorus lineatus lineatus, C. l. alcalai, C. nuchalis nuchalis and C. n. taylori.

Genus Hologerrhum: Hologerrhum philippinum and H. dermali.

Genus Oxyrhabdium: Oxyrhabdium leporinum leporinum, O. l. visayanum and O. modestum.

Genus Myersophis: Myersophis alpestris.

Jeffrey L. Weinell and Rafe M. Brown. 2018. Discovery of An Old, Archipelago-wide, Endemic Radiation of Philippine Snakes. Molecular Phylogenetics and Evolution. In Press.   DOI: 10.1016/j.ympev.2017.11.004

  

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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.

[Herpetology • 2017] Opisthotropis zhaoermii • A New Species of the Southeast Asian Genus Opisthotropis (Serpentes: Colubridae: Natricinae) from western Hunan, China ---ScRaBBlE

Opisthotropis zhaoermii 

Ren, Wang, Jiang, Guo & Li, 2017

 Zhao’s Mountain Stream Snake, 赵氏后棱蛇  || DOI: 10.24272/j.issn.2095-8137.2017.068  

Abstract

A new species of natricine snake of the Southeast Asian genus Opisthotropis Gü nther, 1872 is described from western Hunan Province of China based on both mitochondrial DNA and morphological data. The new species is morphologically most similar and genetically most closely related to O. cheni Zhao, 1999 and O. latouchii (Boulenger, 1899), but possesses considerable genetic divergence (p-distance 5.1%-16.7%) and can be differentiated from all other congeners by a combination of the following morphological characters: (1) body size large (total length 514-586 mm) and strongly built; (2) dorsal scale rows 17 throughout, feebly keeled anteriorly and moderately keeled posteriorly; (3) ventral scales 147-152, subcaudal scales 54-62; (4) preocular absent, loreal elongated and touching orbit; (5) supralabials 8-9, fifth and sixth entering obit; (6) anterior temporals short, length 1.74-2.04 times longer than width; (7) maxillary teeth subequal, 28-30; (8) dorsal surface of head with distinct irregular yellow stripes and markings edged with ochre; (9) body with clear black and yellow longitudinal streaks, partly fused to several lighter patches or thicker stripes anteriorly; and (10) venter pale yellow, with asymmetric blackish speckles along outer margin. We present an updated diagnostic key to all members of the genus Opisthotropis, and recommendations on the ecological study for the group are provided.

Key words: Distribution, Natricinae, Natural history, Taxonomy, Opisthotropis, Opisthotropis zhaoermii sp. nov.

Figure 1: General and close-up views of Opisthotropis zhaoermii sp. nov. in life
holotype CIB109999 (adult female), A: General view; B: Close-up view;
 and paratype CIB109998 (adult male), C: General view; D: Close-up view.

Photos by Jin-Long Ren
 DOI: 10.24272/j.issn.2095-8137.2017.068 

Distribution and natural history: This species is only known from the type locality presently (Figure 6). Opisthotropis zhaoermii sp. nov. inhabits small, fast-flowing mountain streams in forested areas, with water temperature and pH between 19.9–21.2 °C and 7.85–7.93, respectively. Being nocturnal, individuals were seen swimming at the edge of the backwater of travertine waterfalls from 2100h to 0100h at night (Figure 7). The holotype was collected during a heavy rainstorm that caused the water to become extreme turbid, with water temperature and pH measurements of 19.5 °C and 8.13, respectively. 

When handled, individuals never stroked or displayed threating postures. Instead, individuals struggled violently and released a musky, pungent, and enduring defensive odor, much like that of O. balteata and O. kuatunensis (Pope, 1935). The scales of the snakes become dehydrated and crimped quickly after leaving the water for about 10 min, but recovered rapidly when returned to water. Similar to other congeners in China, the new species may prey on earthworms, tadpoles, freshwater isopods, crabs, and small fish (Pope, 1935). Other herpetofauna, including Quasipaa boulengeri, Odorrana schmackeri, Lycodon rufozonatum, L. fasciatus, and Deinagkistrodon acutus, were observed sympatric with the new species. 

Etymology: The specific epithet, zhaoermii, is derived from the name of an internationally renowned Chinese herpetologist, Prof. Er-Mi Zhao, who unfortunately passed away on 24 December 2016. Designation of this specific epithet honors his great contribution to herpetological research in China, specifically to his contribution to the taxonomy of Opisthotropis, including the first description of the sister species (i.e., O. cheni, see above) of the newly found species. We suggest Zhao’s Mountain Stream Snake as its English common name, and “Zhao Shi Hou Leng She” (赵氏后棱蛇) as its Chinese common name. 

Jin-Long Ren, Kai Wang, Ke Jiang, Peng Guo and Jia-Tang Li. 2017. A New Species of the Southeast Asian Genus Opisthotropis (Serpentes: Colubridae: Natricinae) from western Hunan, China.    Zoological Research. 38(5); 251-263. DOI: 10.24272/j.issn.2095-8137.2017.068      

 twitter.com/WangKai64/status/934906346415296515

 facebook.com/photo.php?fbid=1611392255588102

文章导读: 摘要 后棱蛇属 Opisthotropis Günther，1872物种分布于中国南部和东南亚的广泛区域。基于线粒体DNA与形态学证据，描述了后棱蛇属 Opisthotropis一新种赵氏后棱蛇Opisthotropis zhaoermii sp.nov.，该物种目前仅知于模式产地湖南古丈县。该新种在遗传与形态上与莽山后棱蛇 O. cheni Zhao，1999和山溪后棱蛇 O. latouchii（Boulenger，1899）最为接近，但遗传距离与本属其他物种差异较大（5.1%-16.7%），并可根据以下形态学特征与本属其他物种进行区分：（1）体型较大（体全长514-586 mm）而粗壮；（2）通身背鳞17行，前部起弱棱而后增强；（3）腹鳞147-152枚，尾下鳞54-62枚；（4）无眶前鳞，颊鳞延长而入眶；（5）上唇鳞8-9，第五枚与第六枚入眶；（6）前颞鳞短，长宽比1.74-2.04；（7）上颌齿等大，28-30枚；（8）头背有边缘赭色的不规则黄色线纹；（9）身体有黑黄相间的纵纹，体前部的部分纵纹合并成数个浅色斑块或条纹；（10）腹部浅黄色，外侧有不对称点斑。此外，本研究更新了后棱蛇属所有物种的检索表，对该类群的生态学研究提出了建议。

关键词: 分布,  分类,  后棱蛇属 Opisthotropis,  生活史,  水游蛇亚科,  赵氏后棱蛇 Opisthotropis zhaoermii sp.nov.    

   

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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.

[Herpetology • 2017] Aspidura ravanai • A New Species of Aspidura Wagler, 1830 (Squamata: Colubridae: Natricinae) from Sri Pada Sanctuary (Peak Wilderness), Sri Lanka ---ScRaBBlE

 Aspidura ravanai

Wickramasinghe, Vidanapathirana, Kandambi, Pyron & Wickramasinghe, 2017

Ravana’s Rough-side Snake ||  DOI: 10.11646/zootaxa.4347.2.4 

Abstract

We describe a new species, Aspidura ravanai sp. nov., representing the eighth species of the genus known from Sri Lanka. The new species is readily distinguished from all other congeners by its colour pattern, scalation, and genetic distinctiveness. Our molecular results indicated that Aspidura began diversifying in the Miocene approximately 18 Ma, and A. ravanai sp. nov. diverged from its likely sister lineage A. trachyprocta at least 6.2 Ma. The species is currently known only from the type locality, on the western slopes of Sri Pada Peak in the central highlands of Sri Lanka.

Keywords: Reptilia, Aspidura trachyprocta, divergence dating, Ravana, rough-side snakes, new taxa, Sabaragamuwa province, South Asia, systematics

 Female paratype of Aspidura ravanai sp. nov. (DWC 2017.05.01).

Male paratype of Aspidura ravanai sp. nov. (DWC 2017.05.02).

Aspidura ravanai sp. nov.

Aspidura sp. Pyron et al. 2013

Etymology. The specific epithet ravanai is formed after Emperor Ravana, one of the greatest Emperors of all times, who is believed to have lived nearly 5000 years ago in Sri Lanka, and was said to have had immense intelligence and power. The name ravanai is a noun in the genitive case.

Suggested common names. Ravanage madilla, and Ravana’s Rough-side Snake in native Sinhala and English respectively.

Natural History. Seventeen specimens of Aspidura ravanai have been found in montane cloud forests between 1,650–2,000 m elevation. Mostly found in shady areas with dense leaf litter, hidden under loose soil or logs, and can be found up to about 30 cm below ground level.

  L. J. Mendis Wickramasinghe, Dulan Ranga Vidanapathirana, H. K. Dushantha Kandambi, R. Alexander Pyron and Nethu Wickramasinghe. 2017. A New Species of Aspidura Wagler, 1830 (Squamata: Colubridae: Natricinae) from Sri Pada Sanctuary (Peak Wilderness), Sri Lanka. Zootaxa. 4347(2); 275–292.  DOI: 10.11646/zootaxa.4347.2.4

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

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شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

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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.

[Herpetology • 2017] Rhabdops aquaticus • A New Species of Rhabdops Boulenger, 1893 (Serpentes: Natricinae) from the northern Western Ghats Region of India ---ScRaBBlE

Rhabdops aquaticus  Giri, Deepak, Captain & Gower

in Giri, Deepak, Captain, Das, Das, Rajkumar, Rathish & Gower, 2017 DOI:  10.11646/zootaxa.4319.1.2

Abstract

Based on analyses of new DNA sequence data for two nuclear (rag1, cmos) and three mitochondrial (16s, cytb, nd4) genes, the Indian snake genus Rhabdops is a natricine. Variation in geography, DNA sequences, the number of ventral scales, pattern and colour for samples of Rhabdops from along the Western Ghats region of peninsular India is concordant, discontinuous and bimodal. We recognise populations from the northern Western Ghats as distinct specifically from the more southerly R. olivaceus and describe Rhabdops aquaticus sp. nov. based on a series of eight specimens from two localities in the Northern Western Ghats. Rhabdops aquaticus sp. nov. is associated particularly with upland laterite plateaus and their associated streams, a threatened habitat within its known distribution.

Keywords: Reptilia, DNA, herpetology, phylogenetics, Rhabdops olivaceus, snakes, taxonomy, Western Ghats

Rhabdops aquaticus sp. nov. showing colouration in life of larger (presumably adult) specimen from Baraki. Specimen not collected. 

Rhabdops aquaticus sp. nov. showing colouration in life of smaller (possibly juvenile) specimen from Amboli. Specimen not collected

Rhabdops aquaticus sp. nov. Giri, Deepak, Captain and Gower 

Rhabdops olivaceus (Beddome, 1863):
Soman (1962: 966, in part), Whitaker & Captain (2004: 264–267, in part), Chikane & Bhosale (2012: 14, in part), Ganesh et al. (2012:45, in part), Srinivasulu et al. (2013, in part), Bhosale & Joshi (2014: 166–168, in part), Srinivasulu et al. (2014: 18, 29, 55–56, in part), Murthy (2016: 100, in part)

FIGURE 6. Rhabdops aquaticus sp. nov. showing colouration in life of: A) larger (presumably adult) specimen from Baraki, and B) smaller (possibly juvenile) specimen from Amboli. Specimens not collected. 

Etymology. The species name is derived from the Latin for relating to water, aquaticus, in reference to observations of this snake often being observed in freshwater bodies. For nomenclatural purposes, the species epithet is considered a noun in apposition.

Suggested common name. Water Rhabdops or Aquatic Rhabdops (English).

Varad B. Giri, V. Deepak, Ashok Captain, Abhijit Das, Sandeep Das, K. P. Rajkumar, R. L. Rathish and David J. Gower. 2017.  A New Species of Rhabdops Boulenger, 1893 (Serpentes: Natricinae) from the northern Western Ghats Region of India.    Zootaxa. 4319(1); 27–52. DOI:  10.11646/zootaxa.4319.1.2

  ResearchGate.net/publication/319622109_A_new_species_of_Rhabdops_Boulenger_1893_Serpentes_Natricinae_from_the_northern_Western_Ghats_region_of_India

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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.