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Down Cat-eLog Data Sheet
Scientific Name Chaetostoma nudirostre  Lütken, 1874
Common Names L188, Light Rubbernose
Lys Gumminæse (Denmark)
Type Locality Valencia, Venezuela.
Synonym(s) Chaetostomus nudirostris
Pronunciation KATE oh STOW mah
Etymology Greek, chaite = hair + Greek, stoma = mouth. This specific epithet refers to its naked (nudus=naked) snout (rostrum=snout).
Down Species Information
Size 126mm or 5" 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.
Down Habitat Information
Distribution South America: Lake Valencia basin in Venezuela.
Valencia (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
Down Husbandry Information
Furniture Well rounded stones stacked to replicate a river bottom and provide caves.
Breeding Not reported in the aquarium although more common species of Chaetostoma have reproduced in captivity.
Breeding Reports There is no breeding report.
Down Further Information
Reference Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1873 (nos 13-14), pp 207 [6].
Registered Keepers There is no registered keeper.
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Last Update 2022 Jan 19 09:55 (species record created: 2002 Jun 12 00:00)