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Pachypterus acutirostris (Day, 1870)

Image contributors to this species:

Yann Fulliquet (1)

ScotCat Sources:

Other Sources:

Relevant Information:

Pachypterus (Neotropius) acutirostris was described from specimens collected throughout Myanmar (Day 1870). Habitat: There is some evidence that more than one species of Pachypterus (Neotropius) is present in the Irrawaddy River drainage, since there appears to be two forms - one with a distinctly overhanging snout and one without (D. Neely, pers. comm. to H.H. Ng). This awaits further investigation (IUCN 2010). This species inhabits larger rivers. Colouration: Silvery, a black spot on the occiput and a black blotch at base of dorsal fin. Etymology: The genus name: Pachypterus: 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]. The specific name: acutirostris: acutus (L.), sharp or pointed; rostris, Neo-Latin scientific adjective of rostrum (L.), snout, referring to elongated and pointed upper jaw, which extends beyond lower jaw. Remarks: Listed in Fishbase as still in the Schilbeidae family but in Eschmeyer's Catalog of Fishes the current status is the family Horabagride.

Common Name:

Myanmar Neotropius

Synonyms:

Pseudeutropius acutirostris, Neotropius acutirostris

Family:

Horabagridae

Distribution:

Asia: Irrawaddy, Sittang, and Bago Rivers, Myanmar. Type Locality: Throughout Burma.

Size:

8.0cm. (3¼ins)

Temp:

18-28°C (63-83°F)

p.H.

6.5-7.5.

IUCN Red List

Although there is no information on the population and its trends for Neotropius (Pachypterus) acutirostris, it is still relatively abundant in Myanmar. 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. acutirostris may be a species complex. Should this be the case, it will be necessary to reassess this species. (needs updating IUCN 2010).

Reference:

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2019. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 05/2019 ).
Jayaram, KC. 2006. Catfishes of India. Narendra Publishing House, Delhi.
Kottelat, M., 2013. The fishes of the inland waters of Southeast Asia: a catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. The Raffles Bulletin of Zoology 2013 (Suppl. 27):1-663.
Ng, H.H. 2010. Neotropius acutirostris. The IUCN Red List of Threatened Species 2010.

Family: Horabagridae Back to Ident-A-Cat Click on Thumbnails

Pachypterus acutirostris

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