There are 3 described species in this genera, V.
cirrhosa, (Amazon River basin.)
V. beccarii (from the Orinoco River basin
and rivers of Guyana)and V.
sanguinea(from the Amazon, Orinoco and Essequibo River
basins). V. cirrosa seems to be the more
common species of the Candiru. This is the species
that has gained a fearsome reputation for entering
the gill chambers of larger fishes and feeding on
the blood from the gills. Probably the most disturbing
habit is entering the urogenital openings of mammals,
including human bathers in the water. It will lock
its opercular and interopercular spines and has to
be surgically removed from its intended victim. Aquarium
Care: Not easy to keep and would need to
be housed on their own as larger fish would be preyed
upon for their blood in the gill chambers. Sand is
the best substrate for digging themselves into and
floating plants to cut the light down for this light
sensitive species. Diet: Very difficult
as all reports seem to intimate that they need larger
fish to feed on.
South America:Orinoco River basin and rivers of Guyana.
Type Locality: Rockstone, in flumine
Essequibo dicto, in Guiana Britannica.
C.J. Jr., 2007. Checklist of catfishes, recent
and fossil (Osteichthyes: Siluriformes), and catalogue
of siluriform primary types. Zootaxa 1418:1-628. de Pínna, M.C.C. and W. Wosiacki,
2003. Trichomycteridae (pencil or parasitic catfishes).
p. 270-290. In R.E. Reis, S.O. Kullander and C.J.
Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes
of South and Central America. Porto Alegre: EDIPUCRS,
Brasil. Froese, R. and D. Pauly. Editors.
2020. FishBase. World Wide Web electronic publication.
www.fishbase.org, ( 12/2020 ).