Helicophagus

Helicophagus
Systematics
Overcohort :	Clupeocephala
Cohort :	Otomorpha
Sub-cohort :	Ostariophysi
Order :	Catfish (Siluriformes)
Family :	Shark catfish (Pangasiidae)
Genre :	Helicophagus
Scientific name
	Helicophagus
	Bleeker , 1858

Helicophagus is a genus of the shark catfish family. It comprises three types : Helicophagus leptorhynchus , Helicophagus typus and Helicophagus waandersii . These occur in Thailand , Indochina and Indonesia and feed primarily on mollusks , which the generic name alludes to.

Features and systematics

The genus Helicophagus differs from the other genera of the shark catfish by an elongated head with a relatively narrow mouth and palatal teeth, which consists of two round or oval fields on the palatal bone . The barbels on the lower jaw are long. The dorsal fin has a prickly hard ray and seven soft rays. The adipose fin is very small. The elongated anal fin has about thirty soft rays. The caudal fin is forked. The mouth is below.

swell

Tyson R. Roberts, Chavalit Vidthayanon: Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species . In: Proc. Acad. Nat. Sci. Philad. tape 143 , 1991, pp. 97-144 (English).

Individual evidence

↑ J. Ferraris, Jr .: Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalog of siluriform primary types . In: Zootaxa . tape 1418 , 2007, p. 1–628 (English, acnatsci.org [PDF]).

[Ferraris-1] J. Ferraris, Jr .: Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalog of siluriform primary types . In: Zootaxa . tape 1418 , 2007, p. 1–628 (English, acnatsci.org [PDF]).