Monopterus ichthyophoides, a new species of scaled swamp eel (Teleostei: Synbranchiformes: Synbranchidae) from Mizoram, India

Zootaxa ◽  
2011 ◽  
Vol 2936 (1) ◽  
pp. 51 ◽  
Author(s):  
RALF BRITZ ◽  
HMAR TLAWMTE LALREMSANGA ◽  
LALROTLUANGA _ ◽  
LALRAMLIANA _

Monopterus ichthyophoides is described from specimens collected from the Sawleng River and a public well at Luangmual, both in the Barak River drainage in Mizoram, India. The new species differs from all other synbranchids in having only two, instead of five or six branchiostegal rays. It belongs to the Amphipnous species group characterized by possession of scales on the body and can be readily distinguished from all other species of this group by the lower number of vertebrae (114–117 vs 126–188).

Zootaxa ◽  
2011 ◽  
Vol 2913 (1) ◽  
pp. 27 ◽  
Author(s):  
MARTINA E. POCCO ◽  
GONZALO D. RUBIO ◽  
M. MARTA CIGLIANO

A new species of the romaleid grasshopper genus Zoniopoda Stål (Romaleidae: Romaleini) is described and illustrated from the Sierras Chicas of Córdoba Province, central Argentina. A cladistic analysis based on morphological characters indicates that the genus Zoniopoda constitutes a monophyletic group and that Zoniopoda serrana n. sp. must be assigned to Iheringi species group based on synapomorphies of the pronotum and body color. The new species is similar to Z. similis Bruner from Paraguay, Bolivia and Brazil, from which it can be distinguished by the color pattern of the body, shape of the pronotal dorso-median carina and characters of the male terminalia and epiphallus. This paper has been formatted with embedded links to images of the type specimen, maps based on georeferenced specimen data for the genus and an updated key to the species of Zoniopoda available on the Orthoptera Species File (OSF) online (http://orthoptera.speciesfile.org).


Zootaxa ◽  
2007 ◽  
Vol 1399 (1) ◽  
pp. 57 ◽  
Author(s):  
KURTULUÔ OLGUN ◽  
AZIZ AVCI ◽  
ÇETN ILGAZ ◽  
NAZAN ÜZÜM ◽  
CAN YILMAZ

A snake species new to science, Rhynchocalamus barani n. sp., is described from Turkey. It differs from other Rhynchocalamus species in having higher numbers of dorsalia (17 instead of 15) and lower number of ventralia (163–173 instead of 180–240) and upper labials in contact with eye (1 instead of 2) and by a characteristic color-pattern of the body.


Zootaxa ◽  
2018 ◽  
Vol 4374 (2) ◽  
pp. 263
Author(s):  
NARENGBAM RONI ◽  
WAIKHOM VISHWANATH

Garra substrictorostris, a new labeonine species, is described from the Barak River drainage in Manipur, India. It is distinguished from its congeners by the combination of the following characters: a prominent unilobed antrorse proboscis, with 3–5 medium to large multicuspid tubercles on its anterior margin; 4–6 multicuspid tubercles on its anteroventral margin; a prominent transverse lobe with 14–20 multicuspid tubercles; the lateral surface of the snout slightly elevated, lobular with 7–11 small tubercles; 5½ transverse scale rows above the lateral line and 3½ or 4½ scale rows between lateral line and anal-fin origin. 


2021 ◽  
Vol 9 ◽  
Author(s):  
Chuanjiang Zhou ◽  
Wenwen Ma ◽  
Xi Wang ◽  
Yongtao Tang ◽  
Xiaoling Meng ◽  
...  

The genus Homatula belongs to the order Cypriniformes and family Nemacheilidae. Nichols (1925) set up the genus as a subgenus of Barbatula by the type species of Nemacheilus potanini. Currently, it is recognised as a valid genus. Nineteen valid species have been already reported in the drainage of the Yellow, Yangtze, Pearl, Lancang, Red and Nujiang Rivers. H. variegata, H. longidorsalis, H. berezowskii and H. potanini are distributed in the Yangtze River drainage in China. H. laxiclathra is mainly distributed in the Weihe River, a tributary of the Yellow River. The remaining species are mainly distributed in the rivers of Yunnan Province. Homatula guanheensis sp. nov., a new species, is described from the Guanhe River of the HanJiang River drainage (a tributary of the Yangtze River), Xixia County, Henan Province, China. It can be distinguished from its congeners by a combination of the following characters: the vertical brown bars on the body are wider than their interspaces, numbering 19–22; predorsal body partially scaled; the lateral line complete; adipose crest on caudal peduncle not reaching forward; the position of the anal-fin origin and the intestinal form. The new species displays distinct molecular divergence in the Cytochrome oxidase I (COI) and Cytochrome b (Cyt b) genes.


Crustaceana ◽  
2020 ◽  
Vol 93 (11-12) ◽  
pp. 1405-1422
Author(s):  
Yixiong Cai

Abstract The atyid shrimps of Caridina nilotica species group from China are reviewed. Taxonomic diagnosis and discussions are given to three species so far known from China, viz. Caridina gracilipes De Man, 1892, Caridina macrophora Kemp, 1918 and Caridina elongapoda Liang & Yan, 1977. Detailed morphological description and illustrations are provided for a new species. Caridina sheni sp. nov. is morphologically similar to C. gracilipes but could be distinguished by its much longer dactylus of third and fifth pereiopods, and lower number of ventral rostral teeth.


Zootaxa ◽  
2019 ◽  
Vol 4619 (3) ◽  
pp. 545-554
Author(s):  
NARENGBAM RONI ◽  
YENGKHOM CHINGLEMBA ◽  
YUMNAM RAMESHORI ◽  
WAIKHOM VISHWANATH

A new species of Garra with a rostral proboscis is described from the Barak River drainage in Manipur, India. Garra paratrilobata, new species, is distinguished from its congeners in having the combination of the following characters: a prominent trilobed proboscis, the median lobe with 5–7 uni- to tricuspid tubercles on its anterior margin and 4–6 minute tubercles on its anteroventral margin; lateral lobe of the proboscis with 3–4 minute tubercles; lateral surface of the snout lobular, with 6–9 tubercles; 33–34 lateral-line scales; and the rostral surface concave, creased and depressed. 


Zootaxa ◽  
2021 ◽  
Vol 4952 (2) ◽  
pp. 235-256
Author(s):  
VIVIAN C. TREVINE ◽  
JOSÉ RANCÉS CAICEDO-PORTILLA ◽  
MARINUS HOOGMOED ◽  
ROBERT A. THOMAS ◽  
FRANCISCO L. FRANCO ◽  
...  

The genus Thamnodynastes is the most diverse within the tribe Tachymenini, with an extensive and complex taxonomic history. The brief descriptions and lack of robust diagnostic characters are the main sources for identification errors and for the difficulty to assess the diversity estimates of the genus. The Thamnodynastes pallidus group was briefly designated to encompass the most arboreal species of the genus, with thinner bodies and longer tails: T. pallidus, T. longicaudus, T. sertanejo, and a fourth undescribed species. After its designation, no other paper addressed this group and its morphological variation, especially for the hemipenis, is still undetermined. After the analysis of all species of Thamnodynastes we were able to corroborate the distinctiveness of the T. pallidus group and to accurately diagnose its fourth species from the western portion of the Amazonia lowlands. The new species is distinguishable from all congeners, except T. sertanejo, by the absence of ventral longitudinal stripes, 17/17/11 dorsal scale rows, and dorsal dark brown blotches on the anterior third of the body. The new species is distinguished from T. sertanejo by the higher number of subcaudals, lower number of ventrals, and smaller body and head sizes. We also provide additional diagnostic features for the Thamnodynastes pallidus group, including new data on hemipenial variation. Finally, we briefly discuss the defensive behavior and morphological characters associated with arboreality in members of the T. pallidus species group. 


Zootaxa ◽  
2019 ◽  
Vol 4577 (3) ◽  
pp. 515 ◽  
Author(s):  
GERNOT VOGEL ◽  
PATRICK DAVID

A new species of the genus Lycodon Boie in Fitzinger is described on the basis of three specimens collected on the Khorat Plateau, Nakhon Ratchasima Province, Thailand. Lycodon gibsonae spec. nov. is superficially similar to L. fasciatus (Anderson), it differs by its much larger size, a higher number of ventral and subcaudal scales, and a lower number of bands on the body, the last three characters presenting no overlap with those of L. fasciatus sensu stricto. The new species seems to be endemic to the Khorat Plateau. 


Zootaxa ◽  
2010 ◽  
Vol 2348 (1) ◽  
pp. 40 ◽  
Author(s):  
THOMAS H. FRASER ◽  
GERALD R. ALLEN

Apogonichthyoides is resurrected from Apogon (Ostorhinchus) as a valid genus with 19 species. Members of this genus are mostly tannish brown to brownish-black in body color. The head and body usually have brownish to blackish spots (sometimes stripe-like), a darkish cheek line and usually two body bars. An ocellus may be present below the lateral line on the body or absent. One or more caudal-peduncular bars and/or a basicaudal spot are often present. Insertion patterns of supraneurals and pterygiophores are given for 11 species. Apogonichthyoides umbratilis, a new species, has 14 pectoral rays and five bars (three faint) on the body and caudal peduncle. Color pattern of the new species suggest relationships with Apogonichthyoides gardineri, A. timorensis and A. opercularis. Descriptions and illustrations of the latter two species are provided for comparison. Apogonichthyoides gardineri, a rare, deep-water species is characterized by 14 pectoral rays, two bars on the body and one wide bar near the base of the caudal peduncle. Specimens of Apogonichthyoides timorensis usually have 15–16 pectoral rays and two or three bars on the body and caudal peduncle. Specimens of Apogonichthyoides opercularis have nine soft anal rays and 10 soft dorsal rays. A key to eight species included in the timorensis species group is provided. A lectotype and paralectotypes are designated for the syntype series of Apogon opercularis. New name combinations follow: Apogonichthyoides atripes, A. brevicaudatus, A. cantoris, A. chrysurus, A. euspilotus, A. gardineri, A. heptastygma, A. niger, A. opercularis, A. pharaonis, A. pseudotaeniatus, A. regani, A. sialis and A. timorensis. Previous usage includes: Apogonichthyoides enigmaticus, A. nigripinnis, A. taeniatus and A. uninotatus


2018 ◽  
Vol 65 (4) ◽  
Author(s):  
J. Praveenraj ◽  
J.D.M. Knight ◽  
R. Kiruba-Sankar ◽  
Beni Halalludin ◽  
J.J.A. Raymond ◽  
...  

A new species of snakehead fish Channa royi sp. nov., has been described based on 21 specimens collected from the South, Middle and North Andaman Islands, India. It is distinguished from all its congeners by a greenish-grey dorsum, pale brown to black pectoral fin with 2-3 inconspicuous semicircular bands, a series of 7-9 obliquely-arranged, saddle-like, dark olive to grey oblique streaks on green background on upper half of the body, 42-45 pored lateral-line scales, 12-13 branched caudal rays, 6-7 pre-dorsal scales, 43 vertebrae, two rows of teeth on the lower jaw, an outer row of numerous minute slender, pointed teeth and single inner row of large uniform sized teeth without any large canine like teeth on the anterior fourth of the lower jaw. Phylogenetically C. royi sp. nov. is closely related to C. harcourtbutleri, with a genetic distance (K2-P) of 2.4-2.8%, but morphologically differs in having greater inter-orbital width, fewer pelvic-fin rays (5 vs. 5-7, mode 6); fewer caudal-fin rays (ii- i, 10-12, i-ii vs. ii, 15, ii); more pre-dorsal scales (6-7 vs. 4) and fewer mid row lateral-line scales (9-13 vs. 15-16). Though Channa royi sp. nov. is a part of C. gachua species-group, it differs from the topotypic C. gachua from Bengal with higher pair-wise sequence distance of 19.5-20.9%.


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