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Tilak (1964) synonymised this genus under Pseudeutropius and proposed transfer of Pseudeutropius from Schilbidae to Bagridae. Mo (1991) confirmed Tilak's findings and in the light of his revision of the Bagridae including Neotropius in it. Two  species previously described under Pseudeutropius have also been placed under this genus. The current status is valid as Pachypterus atherinoides and placed in the Horabagridae family. Listed in Fishbase as still in the Schilbeidae family but in Eschmeyer's Catalog of Fishes the current status is the family Horabagridae. Habitat: Inhabits freshwater and tidal rivers so does tolerate some brackish conditions. Colouration: Silvery greenish along the back with three or four bands along sides formed by black spots. A black spot on occiput and another at base of dorsal fin. Description: Body with three or four bands along the sides formed by black spots. Pectoral fins long, extending beyond pelvic fins. Anal fin with 33 to 41 rays. Reproduction: Oviparous, eggs are unguarded. Etymology: Genus name: Pachys, thick; pterus, fin, allusion not explained, perhaps referring to “considerably more lengthened” tail and/or long anal fin [often referred to as Neotropius Kulkarni 1952, a junior synonym]. Specific name: –oides, having the form of: silversides (Atherinidae: Atherina), probably referring to silvery stripe on sides. Remarks: Although there is no information on the population and its trends for P atherinoides, it is still relatively abundant throughout the Indian subcontinent. Despite the lack of understanding concerning potential threats to this species, it is assessed as Least Concern given its abundance. However, the taxonomy of this species is uncertain and what is now identified as P. atherinoides may consist of more than one species. Should this be the case, it will be necessary to reassess this species (IUCN 2010 needs updating).

Indian potasi

Pseudeutropius atherinoides, Silurus atherinoides, Neotropius atherinoides

Horabagridae

Asia: South central Asia: Bangladesh, India, Nepal and Pakistan. Type Locality: Tranquebar.

11.5cm. (4¾ins)

18-28°C (63-83°F)

6.5-7.5.

Froese, R. and D. Pauly. Editors. 2014. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 08/2014 ).
Jayaram. K.C. 2006, Catfishes of India. Narendera Publishing House. 383p.
Ng, H.H. 2010. Neotropius atherinoides. The IUCN Red List of Threatened Species 2010.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.