Helogenes
| Helogenes | |
|---|---|
| |
| Helogenes marmoratus | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Cetopsidae |
| Subfamily: | Helogeneinae , 1911
Regan |
| Genus: | Helogenes Günther , 1863
|
| Type species | |
| Helogenes marmoratus Günther, 1863
| |
| Synonyms | |
|
Leyvaichthys Dahl, 1960 | |
Helogenes is a
whale catfish
found in tropical South America.
Helogeneinae is the
Cetopsinae, the other subfamily in the family Cetopsidae.[1]
Species
There are currently four recognized species in this genus:[2]
- Helogenes castaneus (Dahl, 1960)
- Helogenes gouldingi Vari & H. Ortega, 1986
- Helogenes marmoratus Günther, 1863
- Helogenes uruyensis Fernández-Yépez, 1967
Distribution
Helogenes species occur through much of the
Guianas, and at least the lower portions of the Tocantins River.[3]
Description
In Helogenes, the
pectoral fins lack spines, the adipose fin is usually present, but is reduced or absent in one population of one species.[4][3] Helogenes species grow to about 4.3–7.3 centimetres (1.7–2.9 in) SL.[2]
Ecology
Helogenes species feed on
allochthonous insects.[1]
The only species for which details of the ecology are known is H. marmoratus (refer to article for that species).
References
- ^ doi:10.1590/S1679-62252005000200001. Archived from the original(PDF) on 2007-09-27.
- ^ a b Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Helogenes in FishBase. December 2011 version.
- ^ a b Ferraris Jr., Carl J.; Vari, Richard P. (2007-06-07). "Whale Catfishes Cetopsidae". Retrieved 2007-08-04.
- ISBN 0-471-25031-7.
| Authority control databases: National |
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