A new skink of the genus Sphenomorphus Fitzinger, 1843 (Squamata: Scincidae) from Hon Ba Nature Reserve, southern Vietnam

Zootaxa ◽  
2018 ◽  
Vol 4438 (2) ◽  
pp. 313
Author(s):  
SANG NGOC NGUYEN ◽  
LUAN THANH NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
NIKOLAI L. ORLOV ◽  
ROBERT W. MURPHY
Keyword(s):  
New Species ◽  
Nature Reserve ◽  
Tail Length ◽  
Morphological Characters ◽  
Length Ratio ◽  
Medium Size ◽  
Southern Vietnam ◽  
Gene Coi ◽  
New Forest ◽  
Coi Sequences

A new forest skink of the genus Sphenomorphus Fitzinger, 1843 is described from Khanh Hoa Province, southern Vietnam based on morphological characters of four specimens and a fragment of 653 nucleotides of the gene COI. Sphenomorphus yersini sp. nov. is characterized by the following morphological characters: medium size in adults (snout-vent length up to 55 mm); tail length/snout-vent length ratio 1.81; toes reach to fingers when limbs adpressed; midbody scale rows 32–34, smooth; paravertebral scales 61–69; ventral scale rows 58–67; subcaudal scales 112; supraoculars four, rarely five; prefrontals in broad contact with one another; loreal scales two; tympanum deeply sunk; smooth lamellae beneath finger and toe IV 10–12 and 18–20 respectively; a pair of enlarged precloacal scales; hemipenis deeply forked and asymmetrical with two differently sized smooth lobes. The new species differs from its most similar congener, Sphenomorphus buenloicus Darevsky & Nguyen, 1983, by 16.4–16.7% uncorrected p-distance in COI sequences. 

A new skink of the genus Subdoluseps Freitas, Datta-Roy, Karanth, Grismer & Siler, 2019 (Squamata: Scincidae) from southern Vietnam

Zootaxa ◽  
2021 ◽  
Vol 4952 (2) ◽  
pp. 257-274
Author(s):  
MANH VAN LE ◽  
VU DANG HOANG NGUYEN ◽  
HOA THI PHAN ◽  
ATTAPOL RUJIRAWAN ◽  
ANCHALEE AOWPHOL ◽  
...  
Keyword(s):  
New Species ◽  
Coastal Area ◽  
Phylogenetic Trees ◽  
Tail Length ◽  
Morphological Characters ◽  
Length Ratio ◽  
Medium Size ◽  
Anterior Border ◽  
Southern Vietnam ◽  
A New Species

We describe a new species of the genus Subdoluseps Freitas, Datta-Roy, Karanth, Grismer & Siler from a coastal area in southern Vietnam. Subdoluseps vietnamensis sp. nov. is characterized by the following morphological characters: medium size in adults (snout-vent length up to 48.7 mm); tail length/snout-vent length ratio 1.04; toes not reaching finger when limbs adpressed; 27–30 midbody scale rows, smooth; 55–57 paravertebral scales; 55–62 ventral scale rows; 64–74 subcaudal scales; frontoparietal scale single; four supraoculars; prefrontals not in contact with one another; two loreal scales; seven supralabials; ear-opening with two lobules on the anterior border; smooth lamellae beneath finger III 9 or 10 and toe IV 12–15; six enlarged precloacal scales; and four distinct black stripes on dorsum. The new species differs genetically from its closest congeners, S. bowringii (Günther) and S. frontoparietale (Taylor), by uncorrected p-distances of 10.0% and 9.5%, respectively in ND1 sequences, and clusters into the same matriline with these two congeners on the phylogenetic trees. 

A new skink of the genus Scincella Mittleman, 1950 (Squamata: Scincidae) from Ba Den Mountain, Tay Ninh Province, southern Vietnam

Zootaxa ◽  
2019 ◽  
Vol 4648 (2) ◽  
pp. 273-286
Author(s):  
SANG NGOC NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
LUAN THANH NGUYEN ◽  
ROBERT W. MURPHY
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Morphological Characters ◽  
Nucleotide Sequences ◽  
Morphological Data ◽  
Medium Size ◽  
Southern Vietnam ◽  
Males And Females ◽  
Coi Sequences ◽  
Dorsal Pattern

Ba Den is an isolated mountain in southern Vietnam and home to two endemic species of lizards. Herein, we describe another endemic species, a new skink of the genus Scincella Mittleman, 1950, from the area based on morphological data, including hemipenial characters and nucleotide sequences of COI. The following morphological characters diagnose Scincella badenensis sp. nov.: medium size in adults (snout-vent length up to 64.4 mm); toes reach to fingers when limbs adpressed; midbody scale rows 32–36, smooth; paravertebral scales 67–71; dorsal scales not enlarged; ventral scale rows 68–74; supraoculars four; prefrontals in broad contact with one another; loreal scales two; tympanum deeply sunk, without auricular lobules; two enlarged anterior temporal scales; smooth lamellae beneath toe IV 18–20; pair of enlarged precloacal scales; hemipenes short, smooth and forked near the tip with two short lobes and two small terminal papillae; no dorsal pattern in males; and females with black interruptive vertebral line. The new species differs from its congeners by at least 10.4% uncorrected p-distance in COI sequences. 

A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from Cu Lao Cham Islands, central Vietnam

Zootaxa ◽  
2017 ◽  
Vol 4286 (3) ◽  
pp. 333 ◽  
Author(s):  
SANG NGOC NGUYEN ◽  
LUAN THANH NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
HOA THI PHAN ◽  
KE JIANG ◽  
...  
Keyword(s):  
New Species ◽  
Anterior Part ◽  
Tail Length ◽  
Length Ratio ◽  
Medium Size ◽  
Total Length ◽  
Central Vietnam ◽  
A New Species

A new kukri snake, Oligodon culaochamensis sp. nov., is described from Cu Lao Cham Islands, central Vietnam, based on the morphology of six specimens, including two males, three females and one juvenile. The new species belongs to the O. cyclurus group and differs from other congeners in this group by a combination of the following characters: medium size in adults (total length up to 582 mm); 17–19 dorsal scale rows at neck and midbody and 15 or 17 rows before vent; tail length/total length ratio 0.218–0.219 in males and 0.166–0.169 in females; ventrals 167–169 in males and 179–182 in females; subcaudals 63–66 in males and 51–52 in females; head scalation complete with a presubocular; 9–10 maxillary teeth, the posterior three being enlarged; nasal divided; temporal streak absent; long and deeply forked hemipenes extending to 20th subcaudal and without spines and papillae but with prominent diagonal ridge, oblique flounces and distal calyces; cloacal plate undivided; 10–11+3–4 dorsal blotches; and a vertebral stripe on tail and anterior part of body. This is the second species of Oligodon described on islands of Vietnam. 

A new skink of the genus Scincella Mittleman, 1950 (Squamata: Scincidae) from southern Vietnam

Zootaxa ◽  
2020 ◽  
Vol 4868 (3) ◽  
pp. 423-434
Author(s):  
SANG NGOC NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
LUAN THANH NGUYEN ◽  
ROBERT W. MURPHY
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Nucleotide Sequences ◽  
Morphological Data ◽  
Temporal Scales ◽  
Southern Vietnam ◽  
Coi Sequences

A new skink of the genus Scincella Mittleman, 1950, from Binh Phuoc Province, southern Vietnam is described based on morphological data, including hemipenial characters, and nucleotide sequences from COI. The following morphological characters diagnose Scincella baraensis sp. nov.: relatively small size in adults (snout-vent length up to 49.2 mm); when limbs adpressed, toes do not or just reach fingers; 30 smooth midbody scale rows and dorsal scales not enlarged; 66–70 paravertebral scales; 64–66 ventral scale rows; 7 supralabials, the fifth and sixth below the center of the eye; enlarged temporal scales 1+2; nuchals present; ear with small auricular lobules; 18–20 smooth lamellae beneath toe IV; hemipenis smooth, short, and unforked; dorsum with faint black dots. The new species differs from its congeners by an uncorrected p-distance in COI sequences of at least 16.2%. 

A new species of the genus Leptolalax (Anura: Megophryidae) from Guangxi, China

Zootaxa ◽  
2017 ◽  
Vol 4300 (4) ◽  
pp. 551 ◽  
Author(s):  
ZHIYONG YUAN ◽  
RUIDA SUN ◽  
JINMIN CHEN ◽  
JODI J. L. ROWLEY ◽  
ZHENGJUN WU ◽  
...  
Keyword(s):  
New Species ◽  
Nature Reserve ◽  
Southern China ◽  
Morphological Characters ◽  
Medium Size ◽  
Rrna Gene ◽  
Adult Males ◽  
White Line ◽  
Female Head ◽  
A New Species

We describe a new species of megophryid frog from Maoershan Nature Reserve in southern China. Leptolalax maoershanensis sp. nov. is distinguished from its congeners by a combination of the following morphological characters: medium size (SVL 25.2–30.4 mm in eight adult males and 29.1 mm in one adult female); head longer than wide; externally distinct tympanum; distinct black supratympanic line present; dorsal skin shagreened with small tubercles and longitudinal folds; distinct dark spots on the flank; creamy-white chest and belly with irregular black spots; grey-pinkish to dark brownish-violet ventral skin of limbs with numerous whitish speckles; distinct ventrolateral glands forming a white line; finger webbing and fringes absent; toe webbing rudimentary and lateral fringes narrow; longitudinal ridges indistinct under toes and not interrupted at the articulations; and a bicolored iris. The new species differs from all known congeners by an uncorrected p-distance of >6.6% at the 16S rRNA gene fragment examined, and phylogenetic analysis clusters the new species with L. laui and L. liui. At present, the new species is known from montane small bamboo forest in Maoershan Nature Reserve at about 1550 m elevation. 

Baetis majus sp. nov., new species of mayfly (Ephemeroptera: Baetidae) from Far East of Russia

Zootaxa ◽  
2021 ◽  
Vol 4965 (3) ◽  
pp. 541-557
Author(s):  
TATIANA M. TIUNOVA ◽  
ALEXANDER A. SEMENCHENKO ◽  
XIAOLI TONG
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
Morphological Characters ◽  
Species Group ◽  
Morphological Studies ◽  
Nearest Neighbours ◽  
Differential Identification ◽  
Coi Sequences ◽  
Western Palaearctic

A new species, Baetis majus Tiunova sp. nov., is described and illustrated based on larvae and reared adults discovered in the Russian Far East. The differential identification of this species was determined by the characteristics of other representatives of the genus Baetis Leach, including subgenera Baetis Leach and Tenuibaetis Kang & Yang from Eastern and Western Palaearctic, Nearctic and Oriental regions. In addition to morphological studies, DNA barcoding of the described species with average intraspecific K2P distances to nearest neighbours is documented. We reconstructed the phylogenetic relationships of all available cytochrome c oxidase subunit I (COI) sequences of the subgenera of Baetis and Tenuibaetis from four regions. Bayesian analysis using 47 morphological characters additional to partial COI sequences did not allow to determine the species-group of the Baetis genus to which the described species belongs. 

Steinernema borjomiense n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Georgia

Nematology ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 653-669 ◽  
Author(s):  
Oleg Gorgadze ◽  
Elena Fanelli ◽  
Manana Lortkhipanidze ◽  
Alberto Troccoli ◽  
Medea Burjanadze ◽  
...  
Keyword(s):  
New Species ◽  
18S Rrna ◽  
Entomopathogenic Nematode ◽  
Phylogenetic Analyses ◽  
Tail Length ◽  
Morphological Characters ◽  
18S Rrna Gene ◽  
The Body ◽  
Rrna Gene ◽  
A New Species

Summary A new species of entomopathogenic nematode, Steinernema borjomiense n. sp., was isolated from the body of the host insect, Oryctes nasicornis (Coleoptera: Scarabaeidae), in Georgia, in the territory of Borjomi-Kharagauli. Morphological characters indicate that the new species is closely related to species of the feltiae-group. The infective juveniles are characterised by the following morphological characters: body length of 879 (777-989) μm, distance between the head and excretory pore = 72 (62-80) μm, pharynx length = 132 (122-142) μm, tail length = 70 (60-80) μm, ratio a = 26.3 (23.0-29.3), H% = 45 (40-51), D% = 54 (47-59), E% = 102 (95-115), and lateral fields consisting of seven ridges (eight incisures) at mid-body. Steinernema borjomiense n. sp. was molecularly characterised by sequencing three ribosomal regions (the ITS, the D2-D3 expansion domains and the 18S rRNA gene) and the mitochondrial COI gene. Phylogenetic analyses revealed that S. borjomiense n. sp. differs from all other known species of Steinernema and is a member of the monticolum-group.

New species and findings of Pagastia Oliver (Diptera: Chironomidae: Diamesinae) from Central Asia, with DNA barcoding of known species of the genus

Zootaxa ◽  
2021 ◽  
Vol 4951 (3) ◽  
pp. 559-570
Author(s):  
EUGENYI A.  MAKARCHENKO ◽  
ALEXANDER A. SEMENCHENKO ◽  
DMITRY M. PALATOV
Keyword(s):  
New Species ◽  
Central Asia ◽  
Cytochrome Oxidase ◽  
Phylogenetic Trees ◽  
Morphological Characters ◽  
Molecular Data ◽  
Adult Males ◽  
Cytochrome Oxidase Subunit ◽  
Oxidase Subunit ◽  
Coi Sequences

Chironomids of the genus Pagastia Oliver (Diamesinae, Diamesini) from the mountains of Central Asia are revised using both morphological characters and molecular data. Illustrated descriptions of the adult male Pagastia (P.) caelestomontana sp. nov. from Kirgizstan and Tajikistan, P. (P.) hanseni sp. nov. from Tajikistan, and record of a finding apparently a new species P. (P.) aff. lanceolata (Tokunaga) from Tajikistan as well as an updated a key to the determination of the adult males of all known species of Pagastia are provided. A phylogenetic framework is reconstructed based on two mitochondrial genes cytochrome oxidase subunit I (COI) sequences of 34 samples belonging to 7 species of the genus Pagastia and cytochrome oxidase subunit II (COII) available for most samples. Phylogenetic trees of some known species of the genus Pagastia were reconstructed using the combined dataset and Bayesian inference (BI) and Maximum Likelihood (ML) methods. The interspecific K2P distances between seven Pagastia species including P. (P.) caelestomontana sp. nov., P. (P.) hanseni sp. nov. and undescribed P. (P.) aff. lanceolata (Tokunaga) are 6.3–13.2 which corresponding to species level. 

Taxonomic status of two populations of Bent-toed Geckos of the Cyrtodactylus irregularis complex (Squamata: Gekkonidae) with description of a new species from Nui Chua National Park, southern Vietnam

Zootaxa ◽  
2018 ◽  
Vol 4403 (2) ◽  
pp. 307 ◽  
Author(s):  
OLIVIER S. G. PAUWELS ◽  
ROMAN A. NAZAROV ◽  
VLADIMIR V. BOBROV ◽  
NIKOLAY A. POYARKOV
Keyword(s):  
New Species ◽  
National Park ◽  
Species Complex ◽  
Nature Reserve ◽  
Taxonomic Status ◽  
Southern Vietnam ◽  
Number Of Species ◽  
Two Populations ◽  
A New Species

Based on genetic, morphological and chromatical comparisons we evaluate the taxonomic status of two southern Vietnamese forest-dwelling populations of the Cyrtodactylus irregularis species complex. We confirm the allocation of the population from Binh Chau—Phuoc Buu Nature Reserve (Ba Ria—Vung Tau Province) to C. cattienensis and we describe the population of Nui Chua National Park (Ninh Thuan Province) as Cyrtodactylus sangi sp. nov. This brings to 18 the number of species within the C. irregularis complex and to 41 the number of described Cyrtodactylus species recorded from Vietnam. 

A new species of Cycloramphus Tschudi (Anura: Cycloramphidae) from the Parque Nacional da Serra dos Órgãos, Southeastern Brazil

Zootaxa ◽  
2011 ◽  
Vol 2737 (1) ◽  
pp. 19 ◽  
Author(s):  
LUIZ NORBERTO WEBER ◽  
VANESSA KRUTH VERDADE ◽  
RODRIGO DE DE OLIVEIRA LULA SALLES ◽  
ANTOINE FOUQUET ◽  
SERGIO POTSCH DE CARVALHO-E-SILVA
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Southeastern Brazil ◽  
Medium Size ◽  
New Taxon ◽  
Skin Texture ◽  
Male And Female ◽  
A New Species

We report here the discovery of a new species of frog associated to the open areas of the highlands of the Parque Nacional da Serra dos Órgãos. The new species, Cycloramphus organensis is characterized by a unique skin texture, medium size (maximum male and female SVL 26.4 mm and 33.3 mm respectively), dorsal surfaces uniformly brick red colored, uniformly areolate skin on dorsum, pupil horizontal, iris with a menisc on upper margin; no fleshy tubercles on eyelid, tympanic annulus concealed beneath skin, macroglands not visible externally, fingers and toes without fringes and webs; supernumerary palmar and plantar tubercles absent, nuptial spines absent. Despite the presence of an iris menisc, a character shared by frogs of both genera Cycloramphus and Zachaenus Cope, the combination of morphological characters is so unique that the allocation of the species to any of these genera remains ambiguous. Consequently, we used additional molecular-based phylogenetic analyses to ascertain the position of the new taxon. The new species proved to be embedded within the genus Cycloramphus.

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