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A new species of the genus Pethia from Mizoram, northeastern India (Teleostei: Cyprinidae)

Dishma, Mayanglambam, Vishwanath, Waikhom (2013): A new species of the genus Pethia from Mizoram, northeastern India (Teleostei: Cyprinidae). Zootaxa 3736 (1): 82-88, DOI: http://dx.doi.org/10.11646/zootaxa.3736.1.

A new species of the genus Garra (Teleostei: Cyprinidae) from the Barak River drainage, Manipur, India

Roni, Narengbam, Vishwanath, Waikhom (2018): A new species of the genus Garra (Teleostei: Cyprinidae) from the Barak River drainage, Manipur, India. Zootaxa 4374 (2): 263-272, DOI: https://doi.org/10.11646/zootaxa.4374.2.

Glyptothorax jayarami Rameshori & Vishwanath, 2012, new species

Glyptothorax jayarami, new species (Fig. 1) Type material. Holotype: MUMF 14012, 104.5 mm SL; India: Mizoram state, Lawntlai District, Kaladan River at Kolchaw, 22 ˚ 23 'N 92 ˚ 57 'E; Nebeshwar et al., 27 April 2008. Paratypes: MUMF 14013–14022 (9), 53.3–89.4 mm SL; same data as holotype. One paratype (MUMF 14022, 84.8 mm SL), dissected for osteology. Diagnosis. Glyptothorax jayarami is distinguished from its congeners by having an elongate, ovoid thoracic adhesive apparatus with an oval central depression, the apparatus not reaching the gular region; the base of the caudal fin with two blackish-brown blotches behind the hypural plate; the occipital process not in contact with the anterior nuchal-plate element; a long dorsal spine (17.9–19.5 % SL); the ventral surfaces of simple and adjacent branched rays of the pectoral and pelvic fins with well developed plicae, and first branchial arch with eight to nine gill rakers. Description. Morphometric data as in Table 1. Body elongate, spindle-shaped. Dorsal profile rising gradually, evenly from tip of snout to origin of dorsal fin, then sloping ventrally from origin of dorsal fin to end of caudal peduncle. Ventral profile slightly concave upto origin of pelvic fin, then sloping gently dorsally from origin of pelvic fin to end of caudal peduncle. Anus and urogenital openings located at one-third distance from anterior of origin of pelvic fin. Skin with dense tuberculations all over body. Lateral line complete, midlateral. Vertebrae 17 + 19 = 36. Gills on first branchial arch long, bearing 2 + 7 = 9 (2) or 2 + 6 = 8 (3) rakers, with forked tip on 3 rd and 6 th ceratobranchial rakers in two specimens (MUMF 14015 and MUMF 14022) respectively (Fig. 2). Head depressed, broad, triangular in lateral view. Snout prominent with bluntly-pointed tip. Anterior and posterior nares large, separated only by base of nasal barbel. Gill opening wide, extending directly from beneath posttemporal to isthmus. Osseous part of dorsal and lateral surface of head covered with thick, densely tuberculate skin. Eye ovoid, longer horizontal axis, located in mid-head length. Occipital process not in contact with anterior nuchal plate element. Barbels in four pairs. Nasal barbel short, not reaching anterior margin of eye when adpressed, extending halfway between its base and anterior orbital margin. Maxillary barbel long, broad, thick at base, extending upto middle of pectoral-fin base. Outer mandibular barbel with broad, stumpy base; longer than inner mandibular barbel, reaching base of pectoral spine, present posterolateral to inner mandibular barbel. Mouth inferior, with broad, papillated fleshy lips. Upper jaw longer than lower jaw; premaxillary tooth band partially visible with mouth closed. Teeth small, villiform. Premaxillary teeth arranged in irregular rows on broad semilunate band. Dentary teeth in two narrow crescentric bands separated at midline. Dorsal fin with I, 5,i rays, its origin nearer to snout tip than to origin of caudal fin, its distal margin slightly concave in middle. Dorsal spine strong, long, straight, smooth anteriorly, finely serrated posteriorly with 5 (4) or 6 (4) or 7 (2) serrae. Adipose fin short, its anterior margin straight, posterior margin slightly convex. Anal fin with iii, 8,i rays, its origin at level of origin of adipose fin, its posterior margin gently concave. Caudal fin deeply forked, with i,8,7,i rays, procurrent rays symmetrical, extending slightly ahead of hypural notch. Pectoral fin with I, 8,i rays, extending vertically through origin of dorsal-fin base. Pectoral spine smooth anteriorly, covered with thick skin, serrated posteriorly with 11–15 serrae. Ventral surfaces of simple and adjacent branched ray of pectoral fin with obliquely arranged plicae (Fig. 3 a). Pelvic fin with I, 5 rays, originating slightly behind dorsal-fin base, extending up to origin of anal fin when adpressed. Ventral surfaces of simple and adjacent branched ray of pelvic fin with well developed plicae arranged obliquely on simple ray, longitudinally on branched ray (Fig. 3 b). Thoracic adhesive apparatus elongate ovoid, consisting of prominent oval central median depression, opening posteriorly. Central median depression enveloped by one or two layers of discontinuous unculiferous ridges. Median ridges arranged longitudinally. Lateral ridges uninterrupted, radiating from median depression anterolaterally, branched at anterior end (Fig. 4). Adhesive apparatus not reaching gular region. Coloration. In 10 % formalin: dorsal and lateral surfaces of head and body dark brown fading to light brown, ventral surface upto origin of pelvic fin beige. Two beige stripes on body: a mid-dorsal one, extending behind dorsal-fin base and another midlateral, originating at level of origin of pectoral fin, both stripes reaching base of caudal fin. Dorsal, pectoral and pelvic fins with dark-brown bases with hyaline margins. Adipose fin dark brown, its distal margin hyaline. Anal-fin base brown with hyaline margin. Caudal fin with two blackish-brown blotches at caudalfin base, tip of both lobes hyaline. Nasal, maxillary barbels brown dorsally, beige ventrally. Mandibular barbels hyaline. Distribution. Glyptothorax jayarami is known presently only from the type locality, the Kaladan River at Kolchaw in Mizoram, India (Fig. 5). Etymology. The species is named in memory of K.C. Jayaram, who made a substantial contribution to Indian ichthyology.Published as part of Rameshori, Yumnam & Vishwanath, Waikhom, 2012, Glyptothorax jayarami, a new species of catfish (Teleostei: Sisoridae) from Mizoram, northeastern India, pp. 54-62 in Zootaxa 3304 on pages 55-59, DOI: 10.5281/zenodo.20849

Garra biloborostris, a new labeonine species from north-eastern India (Teleostei: Cyprinidae)

Garra biloborostris, a new labeonine species is described from the Kanamakra River of the Brahmaputra River basin in Assam. It can be distinguished from its congeners of northeast India in having a unique combination of the following characters: a proboscis represented by two separate and slightly elevated arch-shaped lobes, each lobe with three acanthoid tubercles on its anterodorsal marginal aspect; bulgy lateral surface of the snout giving a lobe like appearance; a prominent knob-like transverse lobe with 10 – 16 small- to medium-sized acanthoid tubercles; 30 + 3 lateral line scales; 8½ branched dorsal fin rays; and 5½ branched anal fin rays

A new freshwater cyprinid fish Aspidoparia from the Chatrickong river, Manipur, India

Volume: 98Start Page: 254End Page: 25

Devario deruptotalea, a new species of cyprinid fish from Manipur, India (Teleostei: Cyprinidae)

Ramananda, Yumnam, Vishwanath, Waikhom (2014): Devario deruptotalea, a new species of cyprinid fish from Manipur, India (Teleostei: Cyprinidae). Zootaxa 3827 (1), DOI: 10.11646/zootaxa.3827.1.

Validity and Redescription of Glyptothorax Manipurensis Menon and Record of G-Sinense (Regan) from India

Volume: 102Start Page: 61End Page: 6

Garra elongata, a new species of the subfamily Garrinae from Manipur, India (Cyprinidae, Cypriniformes)

Volume: 97Start Page: 408End Page: 41