[Ichthyology • 2022] Pseudolaguvia meghalayaensis • A New Diminutive Sisorid Catfish of the Genus Pseudolaguvia (Siluriformes: Erethistidae) from Northeastern India

 

 Pseudolaguvia meghalayaensis

Lokeshwor & Marak, 2022

DOI: 10.11646/zootaxa.5175.3.3

Abstract

Pseudolaguvia meghalayaensis, a new diminutive sisorid catfish, is described from the confluence of Rongkil and Rongdal streams (tributaries of the Brahmaputra River) in Meghalaya, India. It is distinguished from its congeners by a combination of characters: striae in thoracic adhesive apparatus strongly anastomosing and break up into small rounded plaques posteromedially, smooth anterior edge of dorsal spine, 8 branched pectoral-fin rays, supraoccipital spine not reaching nuchal shield, pectoral-fin length 17.1–20.1% standard length (SL), predorsal length 40.4–43.8% SL, preanal length 71.1–73.1% SL, body depth at anus 15.6–18.1% SL, anal-fin base length 12.2–12.7% SL, and post adipose fin length12.3–12.6% SL.

Keywords: Pisces, New Pseudolaguvia, Sisoridae, Rongkil stream, Rongdal stream, Brahmaputra River basin, Meghalaya

 Pseudolaguvia meghalayaensis:
 ZSI FF 9406, holotype, 28.7 mm SL; A. lateral, B. dorsal, and C. ventral.
ADBUMF 1610/2, paratype, 25.4 mm SL; D. lateral.

Yumnam Lokeshwor and Pringranchi Dokgre Marak. 2022. Pseudolaguvia meghalayaensis, A New Diminutive Sisorid Catfish (Teleostei: Siluriformes) from Northeastern India. Zootaxa. 5175(3); 367-376. DOI: 10.11646/zootaxa.5175.3.3

[Ichthyology • 2021] Pseudolaguvia vespa • A New Sisorid Catfish of the Genus Pseudolaguvia (Siluriformes: Erethistidae) from Nagaland, north-eastern India

Pseudolaguvia vespa

Praveenraj, Vijayakrishnan, Lima & Gurumayum, 2021

DOI: 10.11646/zootaxa.5082.1.7

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Abstract

Pseudolaguvia vespa, new species, is described from the Tsücha River, Mokokchung district, Nagaland, India. The new species can be distinguished from congeners in having the following combination of characters: length of dorsal-fin spine 12.3–16.8% SL, a smooth anterior edge of the dorsal-fin spine, caudal peduncle depth 9.0–10.5% SL, body depth at anus 15.6–17.7% SL, caudal fin length 20.7–24.5% SL, pectoral fin length 20.1–24.1% SL, interorbital distance 22.7–28.1% SL, thoracic adhesive apparatus extending to midway between base of last pectoral-fin ray and pelvic-fin origin, and live specimens with two irregular, chrome-yellow bands on the body.

Keywords: Pisces, Siluriformes, Sisoridae, Tsücha River, Brahmaputra River, Nagaland

 

Pseudolaguvia vespa, new species

 

 Jayasimhan Praveenraj, Balaji Vijayakrishnan, Akum Lima and Shantabala Devi Gurumayum. 2021. A New Sisorid Catfish of the Genus Pseudolaguvia (Teleostei: Sisoridae) from Nagaland, north-eastern India. Zootaxa. 5082(1); 77-86. DOI: 10.11646/zootaxa.5082.1.7

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