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Article
Published: 2022-08-17

Pseudolaguvia meghalayaensis, a new diminutive sisorid catfish (Teleostei: Siluriformes) from Northeastern India

Department of Zoology, Assam Don Bosco University, Tapesia Gardens, Kamarkuchi, Sonapur, Assam 782402
Pisces New Pseudolaguvia Sisoridae Rongkil stream Rongdal stream Brahmaputra River basin Meghalaya

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.

 

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