scholarly journals A new species of Rhinatrema Duméril & Bibron (Amphibia: Gymnophiona: Rhinatrematidae) from Guyana

Zootaxa ◽  
2010 ◽  
Vol 2391 (1) ◽  
pp. 47 ◽  
Author(s):  
DAVID J. GOWER ◽  
MARK WILKINSON ◽  
EMMA SHERRATT ◽  
PHILIPPE J. R. KOK
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
French Guiana ◽  
Sequence Data ◽  
Northeastern Brazil ◽  
Colour Pattern ◽  
Base Pairs ◽  
Type Series ◽  
A New Species

The first new species of rhinatrematid caecilian in more than 50 years, Rhinatrema shiv sp. nov., is described from Guyana. The type series of 10 specimens differs from the only other species in the genus, R. bivittatum, in having a longer tail, different colour pattern, more acuminate and relatively shorter head, and in several features of the skull and mandible including dentition. Sequence data for 1572 aligned base pairs of mitochondrial DNA are > 15% different between the two species. Rhinatrema shiv is known only from Guyana, and R. bivittatum from French Guiana and far northeastern Brazil. The only reported specimen of the genus from Suriname is not clearly referable to either of the named species.

A new Liopeltis Fitzinger, 1843 (Squamata: Colubridae) from Pulau Tioman, Peninsular Malaysia

Zootaxa ◽  
2020 ◽  
Vol 4766 (3) ◽  
pp. 472-484
Author(s):  
HANNAH E. SOM ◽  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
EVAN S. H. QUAH ◽  
RAFE M. BROWN ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Dna Sequence ◽  
Rare Species ◽  
Sequence Data ◽  
Peninsular Malaysia ◽  
Tropical Asia ◽  
Dna Sequence Data ◽  
A New Species ◽  
Lines Of Evidence

Liopeltis is a genus of poorly known, infrequently sampled species of colubrid snakes in tropical Asia. We collected a specimen of Liopeltis from Pulau Tioman, Peninsular Malaysia, that superficially resembled L. philippina, a rare species that is endemic to the Palawan Pleistocene Aggregate Island Complex, western Philippines. We analyzed morphological and mitochondrial DNA sequence data from the Pulau Tioman specimen and found distinct differences to L. philippina and all other congeners. On the basis of these corroborated lines of evidence, the Pulau Tioman specimen is described as a new species, L. tiomanica sp. nov. The new species occurs in sympatry with L. tricolor on Pulau Tioman, and our description of L. tiomanica sp. nov. brings the number of endemic amphibians and reptiles on Pulau Tioman to 12. 

scholarly journals A new species of Amphisbaena (Squamata: Amphisbaenidae) from the Orinoquian region of Colombia

2021 ◽  
Vol 71 ◽  
pp. 55-74
Author(s):  
Juan José Torres-Ramírez ◽  
Teddy Angarita-Sierra ◽  
Mario Vargas-Ramírez
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Phylogenetic Analyses ◽  
Similar Species ◽  
General Knowledge ◽  
Southern Brazil ◽  
Base Pairs ◽  
Northern South America ◽  
Great Genetic Distance ◽  
A New Species

In northern South America, amphisbaenians are rarely seen among the herpetofauna.Thus, general knowledge about them is very poor. During a herpetological survey in 2012 at Casanare, Colombia, we found two specimens of an unusual Amphisbaena. A third specimen sharing the same morphotype labeled Amphisbaena sp. from Vichada department was found deposided in an Colombian reptile collection. Based on morphological analyses together with phylogenetic analyses of 1029 base pairs of the mitochondrial DNA (mtDNA), we describe a new species of Amphisbaena that inhabits in the Orinoquian region of Colombia. The new species is part of a phylogenetic clade together with A. mertensii and A. cunhai (central-southern Brazil), exhibiting a great genetic distance (26.1–28.9%) between the newly identified lineage versus those taxa, and versus the sympatric taxa A. alba and A. fuliginosa. Morphologically, this new Amphisbaena can be distinguished from their congeners by characters combination of number of preocloacal pores, absence of malar scale, postgenial scales and body and caudal annuli counts. Amphisbaena gracilis is on morphology grounds the most similar species. However, the new species can be distinguished from it by having higher body annuli counts, angulus ories aliegned with the edges of the ocular scales and center of frontal scales, less number of large middorsal segments of the first and second body annulus, and rostral scale visible from above. The description of this new Amphisbaena species points out the urgent need to increase the knowledge of worm lizards in Colombia

A new species of big-headed, fanged dicroglossine frog (Genus Limnonectes) from Thailand

Zootaxa ◽  
2008 ◽  
Vol 1807 (1) ◽  
pp. 26 ◽  
Author(s):  
DAVID S. McLEOD
Keyword(s):  
New Species ◽  
Dna Sequence ◽  
Sequence Data ◽  
Sequence Divergence ◽  
Type Material ◽  
Base Pairs ◽  
Dna Sequence Data ◽  
16S Gene ◽  
A New Species

A new species of the dicroglossine genus Limnonectes from eastern Thailand and its tadpole are described. Analysis of DNA sequence data from 2518 base-pairs of the mitochondrial 12S and 16S gene regions places the species within the complex of frogs currently referred to as Limnonectes kuhlii and demonstrates it to be a separate lineage (>18% sequence divergence from type-material of L. kuhlii from Java). The new species differs from L. kuhlii by having nuptial pads, a greater snout–vent length, and different relative finger lengths than specimens from Java. It has more extensive toe webbing, a different arrangement of nuptial pads, and a greater snout–vent length than Limnonectes laticeps. The new species, which lacks vocal slits, also can be distinguished from the morphologically similar Limnonectes namiyei from Japan, which possesses vocal slits.

Another new Cyrtodactylus (Squamata: Gekkonidae) from Guwahati, Assam, India

Zootaxa ◽  
2020 ◽  
Vol 4732 (3) ◽  
pp. 375-392
Author(s):  
JAYADITYA PURKAYASTHA ◽  
MADHURIMA DAS ◽  
SANATH CHANDRA BOHRA ◽  
AARON M. BAUER ◽  
ISHAN AGARWAL
Keyword(s):  
New Species ◽  
Additional Data ◽  
Sequence Data ◽  
Sequence Divergence ◽  
Northeast India ◽  
The State ◽  
Colour Pattern ◽  
Mitochondrial Sequence ◽  
Guwahati City ◽  
A New Species

We describe a new species of Cyrtodactylus from Guwahati city in the state of Assam, India and provide additional data on the recently described Cyrtodactylus guwahatiensis. Cyrtodactylus urbanus sp. nov. falls in the newly defined khasiensis group within the Indo-Burma clade of Cyrtodactylus and is the poorly supported sister taxon to Cyrtodactylus khasiensis. The new species differs from other members of the khasiensis group in mitochondrial sequence data (12.5–17.1 % uncorrected pairwise ND2 sequence divergence) as well as aspects of morphology including the number and arrangement of precloacal pores in males, the number of mid-ventral scales and paravertebral tubercles, and colour pattern. This is the second Cyrtodactylus endemic to the Guwahati region, the fourth from Assam and the twelfth from Northeast India. 

scholarly journals A new species of toad (Bufonidae: Incilius) from central Panama

Zootaxa ◽  
2010 ◽  
Vol 2396 (1) ◽  
pp. 61 ◽  
Author(s):  
JOSEPH R. MENDELSON III ◽  
DANIEL G. MULCAHY
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Single Individual ◽  
Base Pairs ◽  
Widespread Species ◽  
Hands And Feet ◽  
Cordillera De Talamanca ◽  
Central Panama ◽  
A New Species ◽  
Single Locality

We describe Incilius karenlipsae sp. nov., a new species of toad known from a single locality in the Cordillera de Talamanca of central Panama. We describe this species based on a single individual of perhaps what is now an extinct species. We present mitochondrial sequence data from cyt b (675 base-pairs, bp) and 16S (566 bp) to infer its phylogenetic placement among other bufonids. The new species is closely related to the more widespread species I. coniferus, but is clearly distinguishable from it by its larger size, vestigial parotoid glands and extensively developed fleshy pads on the hands and feet.

A new species of the genus Smithophis (Squamata: Serpentes: Natricidae) from southwestern China and northeastern Myanmar

Zootaxa ◽  
2020 ◽  
Vol 4803 (1) ◽  
pp. 51-74
Author(s):  
GERNOT VOGEL ◽  
ZENING CHEN ◽  
V. DEEPAK ◽  
DAVID J. GOWER ◽  
JINGSONG SHI ◽  
...  
Keyword(s):  
New Species ◽  
Cytochrome B ◽  
Yunnan Province ◽  
Sequence Data ◽  
Colour Pattern ◽  
Mitochondrial Cytochrome ◽  
Republic Of China ◽  
Dna Sequence Data ◽  
Mitochondrial Cytochrome B ◽  
A New Species

A new species of natricid snake, Smithophis linearis sp. nov., is described on the basis of a single recently collected specimen from Yingjiang County, Yunnan Province, People’s Republic of China, and three historical specimens from Yunnan and from northeastern Myanmar. The new species is assigned to the genus Smithophis on the basis of its single internasal and single prefrontal shields, and on the basis of the results of phylogenetic analysis of mitochondrial cytochrome b DNA sequence data. The new species differs from its congeners in having the following combination of characters: temporal shields present, six or more circumorbital scales, and a distinctive colour pattern comprising regular, narrow, longitudinal dark and pale lines. Morphological and cytochrome b data are consistent with the recognition of Smithophis as distinct from the genus Opisthotropis. A revised key to the identification of the species of Smithophis is provided. 

Phylogeny-based species delimitation of southern Philippines bent-toed geckos and a new species of Cyrtodactylus (Squamata: Gekkonidae) from western Mindanao and the Sulu Archipelago

Zootaxa ◽  
2010 ◽  
Vol 2390 (1) ◽  
pp. 49 ◽  
Author(s):  
LUKE J. WELTON ◽  
CAMERON D. SILER ◽  
ARVIN C. DIESMOS ◽  
RAFE M. BROWN
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Dna Sequences ◽  
Sequence Data ◽  
Color Pattern ◽  
Reciprocal Monophyly ◽  
Dna Sequence Data ◽  
Natural Park ◽  
Gallery Forests ◽  
A New Species

Using a combination of fixed morphological character differences, mitochondrial DNA sequence data, and an estimate of phylogeny as our guide, we describe a new species of bent-toed gekkonid lizard (Genus: Cyrtodactylus) from southwestern Mindanao Island, and northeastern portions of the Sulu Archipelago, southern Philippines. The new species resembles C. annulatus, but differs from this and all other congeners by characteristics of external morphology, color pattern, and body size. In addition, the new species is distinguished from congeners by marked genetic divergence and reciprocal monophyly of mitochondrial DNA sequences. The new species is common in pristine, low elevation gallery forests throughout Pasonanca Natural Park, Zamboanga Peninsula, southwestern Mindanao Island, and the northeastern portions of the Sulu Archipelago.

scholarly journals A new species of Amphisbaena (Squamata: Amphisbaenidae) from the Orinoquian region of Colombia

2021 ◽  
Vol 71 ◽  
pp. 55-74
Author(s):  
Juan José Torres-Ramírez ◽  
Teddy Angarita-Sierra ◽  
Mario Vargas-Ramírez
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Phylogenetic Analyses ◽  
Similar Species ◽  
General Knowledge ◽  
Southern Brazil ◽  
Base Pairs ◽  
Northern South America ◽  
Great Genetic Distance ◽  
A New Species

In northern South America, amphisbaenians are rarely seen among the herpetofauna.Thus, general knowledge about them is very poor. During a herpetological survey in 2012 at Casanare, Colombia, we found two specimens of an unusual Amphisbaena. A third specimen sharing the same morphotype labeled Amphisbaena sp. from Vichada department was found deposided in an Colombian reptile collection. Based on morphological analyses together with phylogenetic analyses of 1029 base pairs of the mitochondrial DNA (mtDNA), we describe a new species of Amphisbaena that inhabits in the Orinoquian region of Colombia. The new species is part of a phylogenetic clade together with A. mertensii and A. cunhai (central-southern Brazil), exhibiting a great genetic distance (26.1–28.9%) between the newly identified lineage versus those taxa, and versus the sympatric taxa A. alba and A. fuliginosa. Morphologically, this new Amphisbaena can be distinguished from their congeners by characters combination of number of preocloacal pores, absence of malar scale, postgenial scales and body and caudal annuli counts. Amphisbaena gracilis is on morphology grounds the most similar species. However, the new species can be distinguished from it by having higher body annuli counts, angulus ories aliegned with the edges of the ocular scales and center of frontal scales, less number of large middorsal segments of the first and second body annulus, and rostral scale visible from above. The description of this new Amphisbaena species points out the urgent need to increase the knowledge of worm lizards in Colombia

scholarly journals Platydoras brachylecis, a new species of thorny catfish (Siluriformes: Doradidae) from northeastern Brazil

2008 ◽  
Vol 6 (3) ◽  
pp. 481-494 ◽  
Author(s):  
Nivaldo M. Piorski ◽  
Julio C. Garavello ◽  
Mariangeles Arce H. ◽  
Mark H. Sabaj
Keyword(s):  
New Species ◽  
French Guiana ◽  
Northeastern Brazil ◽  
Dark Spot ◽  
Nominal Species ◽  
Key To Species ◽  
Caudal Peduncle ◽  
Additional Species ◽  
White Stripe ◽  
A New Species

Platydoras brachylecis, new species, is described from coastal drainages of northeastern Brazil (Pindaré to Parnaíba rivers), and diagnosed from congeners by the unique combination of: pale yellow to white stripe beginning above orbits, continuing midlaterally on body and onto middle rays of caudal fin; skin in axil of each midlateral thorn without concentration of pigment forming small dark spot, midlateral scutes shallow (depth of 10th scute 8.8-11.9% of SL), and midlateral scutes on caudal peduncle distinctly separated by strip of skin from middorsal and midventral caudal-peduncle plates. Three additional species of Platydoras are recognized as valid: P. armatulus (lower Orinoco, Amazon and Paraguay-Paraná drainages), P. costatus (coastal drainages of Suriname and French Guiana), and P. hancockii (upper Orinoco, Negro, Essequibo and Demerara drainages). The nominal species P. dentatus and P. helicophilus are tentatively treated as junior synonyms of P. costatus. A key to species of Platydoras is provided.

Description of Haploblepharus kistnasamyi, a new catshark (Chondrichthyes: Scyliorhinidae) from South Africa

Zootaxa ◽  
2006 ◽  
Vol 1318 (1) ◽  
pp. 41 ◽  
Author(s):  
BRETT A. HUMAN ◽  
LEONARD J.V. COMPAGNO
Keyword(s):  
South Africa ◽  
New Species ◽  
Colour Pattern ◽  
Southern Coast ◽  
Caudal Peduncle ◽  
Type Series ◽  
Kwazulu Natal ◽  
A New Species

A new species of catshark, Haploblepharus kistnasamyi sp. nov. (Class Chondrichthyes, Order Carcharhiniformes, Family Scyliorhinidae) is described from kwaZulu-Natal, South Africa. The type series includes the holotype, RUSI 39835, and two paratypes, RUSI 6075 and RUSI 6077. This species was previously recognised as a variant of H. edwardsii (Schinz 1822), which occurs along the southern coast of South Africa. The colour pattern of H. kistnasamyi is superficially similar to H. edwardsii although distinct; however H. kistnasamyi is distinguished from all other Haploblepharus in having a stockier build compared to its congeners, a less depressed head and trunk, and a compressed caudal peduncle.

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