Nemipterus andamanensis, a new nemipterid fish (Perciformes: Nemipteridae) from the Andaman Islands

Zootaxa ◽  
2018 ◽  
Vol 4500 (1) ◽  
pp. 82
Author(s):  
K.K. BINEESH ◽  
BARRY C. RUSSELL ◽  
K. CHANDRA
Keyword(s):  
Gene Sequence ◽  
Lower Lobe ◽  
Coi Gene ◽  
Colour Pattern ◽  
Andaman Islands ◽  
Head Region ◽  
Caudal Fin ◽  
C Subunit ◽  
Mitochondrial Cytochrome Oxidase ◽  
A New Species

A new species of threadfin bream, Nemipterus andamanensis n. sp. from the Andaman Islands is described and figured. N. andamanensis resembles N. marginatus (Valenciennes, 1830) in general body form and colour pattern, but differs from the latter by having four yellow stripes on the head region, upper lobe of caudal fin and filament yellow, and lower lobe of caudal fin pinkish. The mitochondrial cytochrome oxidase C subunit I (COI) gene sequence comparison with close species revealed that Nemipterus andamanensis n. sp. has distinct genetic divergence (8.5%) from Nemipterus marginatus and other species of the genus occurring in the area.  

scholarly journals Opistognathus albicaudatus, a new species of jawfish (Teleostei: Opistognathidae) from the Andaman Islands

Zootaxa ◽  
2011 ◽  
Vol 3085 (1) ◽  
pp. 34 ◽  
Author(s):  
WILLIAM F. SMITH-VANIZ
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Range Extension ◽  
Colour Pattern ◽  
Andaman Islands ◽  
Morphological Similarity ◽  
Caudal Fin ◽  
Upper Jaw ◽  
Gill Raker ◽  
A New Species

A new species of jawfish, Opistognathus albicaudatus, is described based on two specimens, 91.4–94.8 mm SL, from the Andaman Islands. The combination of an elongate upper jaw produced as thin flexible lamina, and a unique colour pattern consisting of an abruptly white caudal fin and gill arches with a series of 8–10 small dark spots, each near the base of a gill raker, distinguishes the new species from other congeners. Based on morphological similarity and general color pattern, the new species seems to be most closely related to Opistognathus variabilis.These two species appear to have allopatric distributions. A range extension for O. cyanospilotus is also reported.

Morphology and molecular phylogeny of ornamental freshwater prawns of the genus Macrobrachium (Decapoda, Caridea, Palaemonidae) from China with the description of a new species

Crustaceana ◽  
2021 ◽  
Vol 94 (10) ◽  
pp. 1201-1220
Author(s):  
Qinghua Chen ◽  
Wenjian Chen ◽  
Yuanwei Hu ◽  
Ka Yan Ma ◽  
Zhaoliang Guo
Keyword(s):  
New Species ◽  
Colour Pattern ◽  
Molecular Evidence ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Closely Related Species ◽  
Distribution Maps ◽  
Mitochondrial Cytochrome Oxidase ◽  
A New Species

Abstract This study dealt with three species of ornamental palaemonid freshwater prawns of the genus Macrobrachium, based on morphological and molecular analysis. Macrobrachium pentazona He, Gao & Guo, 2009; M. laevis Zheng, Chen & Guo, 2019; and M. bilineare sp. nov. are distinguishable from closely related species by segmental ratios, spination of the second pereiopods and the slender scaphocerite. Macrobrachium bilineare sp. nov. can easily be recognized in the field by its bright colour pattern. Molecular evidence of mitochondrial cytochrome oxidase subunit I (COI), also supports the characterization of this new species, raising the total number of Macrobrachium spp. known from China to 41. Detailed description, illustrations, colour photographs, habitat information, distribution maps and features of conservation significance are also briefly discussed.

scholarly journals Taxonomy of the sand bubbler crabs Scopimera globosa De Haan, 1835, and S. tuberculata Stimpson, 1858 (Crustacea: Decapoda: Dotillidae) in East Asia, with description of a new species from the Ryukyus, Japan

Zootaxa ◽  
2010 ◽  
Vol 2345 (1) ◽  
pp. 43 ◽  
Author(s):  
KINGSLEY J. H. WONG ◽  
BENNY K. K. CHAN ◽  
HSI-TE SHIH
Keyword(s):  
Hong Kong ◽  
New Species ◽  
East Asia ◽  
South China ◽  
Type Species ◽  
Junior Synonym ◽  
Coi Gene ◽  
Mitochondrial Cytochrome ◽  
Mitochondrial Cytochrome Oxidase ◽  
A New Species

Sand bubbler crabs of the genus Scopimera are common on sandy shores in East Asia yet the taxonomy of the species remains unclear. Scopimera globosa De Haan, 1835, the type species, was described from Japanese specimens and also occurs in Korea and China. Scopimera tuberculata Stimpson, 1858, described from Japan, has been regarded a junior synonym of S. globosa, but the types had long been lost. Some workers have considered the two taxa distinct and S. tuberculata has been recorded from South China. In the present study, we confirm using male gonopod morphology and molecular analysis, that the early records of S. tuberculata from Hong Kong and S. globosa from Taiwan are in fact S. intermedia Balss, 1934. The present study regards S. tuberculata as a subjective junior synonym to S. globosa. A new species, Scopimera ryukyuensis sp. nov. from the Ryukyus, is identified and described herein. The new species is close to S. globosa but can be separated by carapace characters. The mitochondrial cytochrome oxidase I (COI) gene revealed basepair (bp) difference between the new species and other Scopimera spp. to be at the interspecific level, at least 28 bp (4.3%).

Cabdio crassus, a new species of cyprinid fish (Teleostei: Cyprinidae) from the Kaladan River of Mizoram, India

Zootaxa ◽  
2019 ◽  
Vol 4657 (1) ◽  
pp. 159-169
Author(s):  
LALRAMLIANA LALRAMLIANA ◽  
SAMUEL LALRONUNGA ◽  
MAHENDER SINGH
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Gene Sequence ◽  
Cyprinid Fish ◽  
Coi Gene ◽  
Pharyngeal Tooth ◽  
Fin Rays ◽  
A New Species ◽  
New Fish Species ◽  
Pelvic Fin

Cabdio crassus, a new fish species, is described from the Kaladan River in Mizoram, India. The new species is distinguished from all its congeners by having a ventral keel extending from the middle of the chest, between the posterior base of the pectoral fin and along the abdomen up to the anus (vs. more or less keeled median scales from mid-point of abdomen between posterior base of pelvic fin up to anus in all other Cabdio) and 11½–12½ branched anal-fin rays (vs. 7 in C. jaya and 9 in both C. morar and C. ukhrulensis). It is further distinguished from C. morar and C. ukhrulensis by possessing more lateral-line scales (45–51 vs. 38–42 in C. morar and 35–37 in C. ukhrulensis), more predorsal scales (20–23 vs. 17–18 in C. morar and 14 in C. ukhrulensis) and more lateral transverse scales (½7/1/3½ vs. 5/1/2 in both C. morar and C. ukhrulensis). It also differs from C. jaya in having fewer lateral-line scales (45–51 vs. 52–60), more lateral transverse scales (½7/1/3½ vs. 5/1/3) and more pharyngeal tooth-rows (3 vs. 2). Furthermore, the cytochrome c oxidase sub unit I (coi) gene sequence separates Cabdio crassus from all other Cabdio species (interspecies distance ranges from 7.8–12.3%). The anomalies observed among the GenBank sequences of the genus Cabdio are discussed and resolved. 

Triplophysa sanduensis, a new loach species of nemacheilid (Teleostei: Cypriniformes) from South China

Zootaxa ◽  
2019 ◽  
Vol 4560 (2) ◽  
pp. 375
Author(s):  
SHI-JING CHEN ◽  
ZUO-GANG PENG
Keyword(s):  
New Species ◽  
Guizhou Province ◽  
Coi Gene ◽  
Posterior Chamber ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Caudal Peduncle ◽  
Fin Rays ◽  
Peduncle Length ◽  
Mitochondrial Cytochrome Oxidase ◽  
A New Species

A new species of Nemacheilidae, Triplophysa sanduensis sp. nov., is described here based on specimens collected from a small cave in Dengguang Village, Zhonghe Town, Sandu County, Guizhou Province, China. The new species can be distinguished from its congeners by the following combination of characters: branched dorsal-fin rays 8–9; branched pectoral-fin rays 8–9; branched pelvic-fin rays 5; branched anal-fin rays 5; vertebrae 4+37; snout length 45.5–50.1% of head length; postdorsal length 39.0–42.8% of standard length; caudal-peduncle depth/caudal-peduncle length range from 56.4% to 71.9%; the posterior chamber of the gas bladder degenerated; body elongated, covered by scattered scales; eyes present and normal in size, not reduced or absent; and a complete lateral line. A phylogenetic analysis based on the mitochondrial cytochrome oxidase subunit 1 (COI) gene resolved Triplophysa sanduensis as sister to Triplophysa longliensis. Kimura's 2-parameter genetic distance of the COI gene sequences between these two species was 1.9%. 

scholarly journals Laubuka tenella, a new species of cyprinid fish from southeastern Bangladesh and southwestern Myanmar (Teleostei, Cyprinidae, Danioninae)

ZooKeys ◽  
2018 ◽  
Vol 742 ◽  
pp. 105-126 ◽  
Author(s):  
Sven Kullander ◽  
Md. Mizanur Rahman ◽  
Michael Norén ◽  
Abdur Rob Mollah
Keyword(s):  
New Species ◽  
Coi Gene ◽  
Valid Species ◽  
Colour Pattern ◽  
Mitochondrial Coi ◽  
Mitochondrial Coi Gene ◽  
Small Streams ◽  
Vertical Bars ◽  
A New Species ◽  
Pelvic Fin

Laubuka tenellais a new species characterized by the colour pattern, consisting of short dark vertical bars anteriorly on the side, and a dark lateral band posteriorly on the side, combined with a relatively short pelvic fin and 29–30 lateral-line scales. It is separated from otherLaubukaanalysed by minimum 9 % uncorrectedp-distance in the mitochondrial COI gene. The type series is composed of specimens from small streams in the Cox’s Bazar District in Bangladesh (the type locality), and the Thandwe River drainage in western Myanmar.Laubuka brahmaputraensisis strongly indicated to be a junior synonym ofL. laubuca, the second known species ofLaubukain Bangladesh.Eustira ceylonensis, currently in the synonymy ofDevario malabaricus, is a valid species ofLaubuka.

The westernmost known population of Paracobitis (Teleostei, Nemacheilidae), with the description of a new species from the Euphrates River in southern Anatolia

Zootaxa ◽  
2020 ◽  
Vol 4838 (4) ◽  
pp. 525-534 ◽  
Author(s):  
CÜNEYT KAYA ◽  
DAVUT TURAN ◽  
GÖKHAN KALAYCI ◽  
ESRA BAYÇELEBİ ◽  
JÖRG FREYHOF
Keyword(s):  
New Species ◽  
Critically Endangered ◽  
Colour Pattern ◽  
Nucleotide Substitutions ◽  
Caudal Fin ◽  
Euphrates River ◽  
A New Species

Paracobitis salihae, new species, from the Göksu River in the western upper Euphrates drainage, is distinguished from other Paracobitis species by possessing a truncate caudal-fin, and a dark-brown vermiculate or marbled colour pattern. It is also characterised by 19 variable nucleotide substitutions, three diagnostic nucleotides and 3.6% minimum K2P distance compared to geographically adjacent and related P. zabgawraensis. Paracobitis salihae might be Critically Endangered and is threatened by dam constructions. 

Nothobranchius nikiforovi, a new species of seasonal killifish from the lower Matandu drainage in south-eastern coastal Tanzania (Cyprinodontiformes: Nothobranchiidae)

Zootaxa ◽  
2021 ◽  
Vol 4950 (1) ◽  
pp. 103-122
Author(s):  
BÉLA NAGY ◽  
BRIAN R. WATTERS ◽  
ALEXANDRA A. RASPOPOVA
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Distal Portion ◽  
Species Group ◽  
Colour Pattern ◽  
Caudal Fin ◽  
Light Blue ◽  
South Eastern ◽  
Median Fins ◽  
A New Species

Nothobranchius nikiforovi, a new species known from seasonal habitats in the lower Matandu drainage in south-eastern coastal Tanzania is described. It is distinguished from all other congeners, except N. eggersi, by males presenting two colour phenotypes: the blue phenotype having a bright iridescent light blue to blue-green body, with narrow red-brown scale margins creating irregular reticulated pattern, forming chevron-shaped crossbars on the posteroventral portion of body and light blue median fins with red-brown dotted pattern; the red phenotype has a dark red head, light blue dorsal and anal fins proximally and medially, dark red distally, with dark red stripes parallel to the fin rays, and a plain dark red caudal fin. Nothobranchius nikiforovi differs from N. eggersi by male colour pattern, the blue phenotypes having median fins with dark grey distal portion, some of the rays of dorsal and anal fins with white tips (vs. median fins with distinct slender white distal band), and the caudal fin lacking a spotted pattern (vs. dots arranged into irregular curved stripes); the red phenotype with golden stripe between the nape and dorsal-fin origin (vs. light-blue stripe), the dorsal and anal fins with a plain red distal portion and lacking a light distal band (vs. with distinct narrow white distal band), the pelvic fin lacking a distal band (vs. with distinct slender light blue to white distal band), and some morphometric differences. Phylogenetic analyses also support the genetic distinction of the new species from its closest known relative, N. eggersi, and confirm its position in the N. guentheri species group within the Adiniops subgenus. 

scholarly journals A new species of Coryphophylax Fitzinger in: Steindachner, 1867 (Sauria: Iguania: Agamidae) from the Andaman Islands, India

Zootaxa ◽  
2012 ◽  
Vol 3451 (1) ◽  
pp. 31 ◽  
Author(s):  
S. HARIKRISHNAN ◽  
KARTHIKEYAN VASUDEVAN ◽  
S. R. CHANDRAMOULI ◽  
B. C. CHOUDHURY ◽  
SUSHIL KUMAR DUTTA ◽  
...  
Keyword(s):  
New Species ◽  
Systematic Position ◽  
Colour Pattern ◽  
Andaman Islands ◽  
Andaman And Nicobar Islands ◽  
Andaman Island ◽  
Taxonomic History ◽  
South Andaman ◽  
Nicobar Islands ◽  
A New Species

The systematic position of the agamid genus Coryphophylax (Squamata: Agamidae) is given as monotypic and endemicto the Andaman and Nicobar Islands in the Bay of Bengal, India. After having surveyed intensively in thirteen differentIslands and examined several individuals in the Andamans group of islands, we describe a second species ofCoryphophylax from the lowland rainforests of the South Andaman Island. Coryphophylax brevicaudus sp. nov. isdifferentiated from its congener, C. subcristatus (Blyth, “1860” 1861) by its smaller size, relatively shorter tail, presenceof nuchal and dorsal crests in both sexes, midbody scale row counts and colour pattern. The new species lives in sympatrywith C. subcristatus. The taxonomic history and systematic status of the genus Coryphophylax are discussed, and the need for continued surveys in the Islands is emphasized.

Silurichthys ligneolus, a new catfish (Teleostei: Siluridae) from southern Borneo, Indonesia

Zootaxa ◽  
2011 ◽  
Vol 2793 (1) ◽  
pp. 56
Author(s):  
HEOK HEE NG ◽  
HEOK HUI TAN
Keyword(s):  
New Species ◽  
Lower Lobe ◽  
Branchial Arch ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Caudal Fin ◽  
Fin Rays ◽  
Eye Diameter ◽  
Gill Raker ◽  
A New Species

Silurichthys ligneolus, a new species of silurid catfish, is described from blackwater habitats in southern Borneo. The new species can be distinguished from congeners in having a combination of: body depth at anus 9.1–11.0% SL, caudal peduncle depth 4.7–5.5% SL, eye diameter 6.7–9.8% HL, pelvic fins present, 44–45 anal-fin rays, 3–4 principal rays on the lower caudal-fin lobe, lower lobe of caudal fin indistinct, 46–48 vertebrae, one gill raker on the first branchial arch, and body uniformly brown. Based on the morphology of its caudal fin, S. ligneolus is hypothesized to be the sister taxon of S. sanguineus.

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