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  • Chaetostoma marmorescens
Jump to next section Cat-eLog Data Sheet
Scientific Name Chaetostoma marmorescens  Eigenmann & Allen, 1942
Common Name
Type Locality Huanacachupa Creek near Huanuco, R. Tingo, Peru, elev. 6000 ft.
Pronunciation KATE oh STOW mah
Etymology Greek, chaite = hair + Greek, stoma = mouth. 
Jump to next section Species Information
Size 135mm or 5.3" SL. Find near, nearer or same sized spp.
Identification The genus Chaetostoma is not straightforward to identify, but as a general rule, the species has spines behind the gill-cover (interopercular odontodes), no plates on the abdomen, and aside from C. platyrhynchus also lack plates on the snout edge. Different from Ancistrus by not having fleshy tentacles on the snout.
Sexing The males have however a larger and broader head, slimmer ventral sides and disproportionately large pelvic fins. Perhaps the over-sized pelvic fins play a large role in the fertilization of the eggs. By inverting these over the clutch of eggs, they prevent the sperm cells being carried away by fast water current.
Jump to next section Habitat Information
Distribution South America: Upper Huallaga River basin in Marañon River drainage.
Amazon, Upper Amazon, Marañón, Huallaga (click on these areas to find other species found there)

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Jump to next section Husbandry Information
Furniture Well rounded stones stacked to replicate a river bottom and provide caves.
Breeding Unreported.
Breeding Reports There is no breeding report.
Jump to next section Further Information
References Fishes of western South America, pp 193
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Last Update 2014 Feb 09 09:01 (species record created: 2005 Oct 07 00:00)