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Abhisek Mishra (1) Beta Mahatvaraj (2)

Habitat: Members of the genus Pseudolaguvia are small erethistid catfishes inhabiting hill streams and large rivers in the area bordered by the Ganges River drainage (northern India) to the west and the Sittang River drainage (east-central Myanmar) to the east. Abstract: Pseudolaguvia permaris, a new sisorid catfish is described from the Mahanadi River basin in Odisha, India. The new species can be distinguished from congeners in having the following combination of characteristics: serrated anterior margin of dorsal-fin spine, thoracic adhesive apparatus not extending beyond the base of last pectoral-fin ray, caudal peduncle depth 8.6–10.2% SL, body depth at anus 15.3–20.2% SL, adipose-fin base length 13.6–18.1% SL, dorsal to adipose distance 11.4–14.4% SL, length of pectoral-fin spine 19.3–28.0% SL, length of dorsal-fin spine 16.5–20.4% SL, head width 21.6–25.9% SL and indistinct, creamish bands on the body, (Vijayakrishnan, Praveenraj & Mishra, 2023). Habitat: Pseudolaguvia permaris is currently known only from the type locality but is likely to be found throughout suitable habitats in the Mahanadi River basin. The type series was collected in summer when the river was less than a metre deep. The specimens were collected from marginal vegetation consisting of Vallisneria sp., Hydrilla sp., and Aponogeton sp. The substrate comprised sand and clayey soil, with sections of small to medium-sized pebbles. Barilius bendelisis, Pethia ticto, P. conchonius, Devario devario, Danio rerio, Badis badis, Mastacembelus armatus, and Macrognathus pancalus were collected along with the new species, (Vijayakrishnan, Praveenraj & Mishra, 2023). Etymology: The genus name Pseudolaguvia: pseudo-, from pseúdes, false, i.e., although this genus may superficially resemble several “closely allied” genera, including Laguvia (=Erethistes), such an appearance is false. The specific name permaris: Latin for “by the sea,” referring to proximity of type locality to the Bay of Bengal (~50 kms).

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Sisoridae

Asia: Mahanadi River basin in Odisha, India. Type locality: Kuakhai River, Mahanadi River basin, Bhubaneswar, Khordha district, Odisha, India, 20°20'26.865"N, 85°52'10.64"E, elevation 23 meters.

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22-24°C (71-75°F)

6.0-7.5.

Vijayakrishnan, B., Praveenraj, J. & Mishra, A. (2023) Pseudolaguvia permaris, a new catfish from the Eastern Ghats of India (Teleostei: Sisoridae). Zootaxa, 5297 (2), 271–281.