Cat-eLog Right Loricariidae Right Hypostominae Right Chaetostoma  |  | 

Down Cat-eLog Data Sheet
Scientific Name Chaetostoma dorsale  Eigenmann, 1922
Common Names L187, Blackfinned Rubbernose
L443, Sortfinnet Gumminæse (Denmark)
Type Locality Río Albirregas and Río Millo, near Merida, northwestern Venezuela.
Synonym(s) Chaetostomus dorsalis
Pronunciation KATE oh STOW mah
Etymology Greek, chaite = hair + Greek, stoma = mouth. 
Down Species Information
Size 88mm or 3.5" 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: Upper Meta and upper Apuré River basins.
Orinoco, Middle Orinoco, Meta, Upper Meta (click on these areas to find other species found there)
Orinoco, Middle Orinoco, Apure (click on these areas to find other species found there)

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IUCN Red List Category
Vulnerable
, range map and more is available on the IUCN species page. Last assessed 2020.
Down Husbandry Information
Furniture Well rounded stones stacked to replicate a river bottom and provide caves.
Breeding Spawns in shallow, fast flowing water on the underneath of a flat object. Male, upside down, guards an adhesive clutch of eggs by, more or less, covering it with his body.
Breeding Reports There is no breeding report.
Down Further Information
Reference Memoirs of the Carnegie Museum v. 9 (no. 1), pp 226.
Registered Keepers There are 20 registered keepers, view all "my cats" data.
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Last Update 2022 Jan 19 09:53 (species record created: 2011 Aug 20 14:16)