Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Cambeva: Probably derived from the Tupi-Guarani, is a popular name for trichomycterid fishes in southern and south-eastern Brazil (Ref. 119381); tourensis: Name 'tourensis' from the type locality of the species, Rio dos Touros.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Subtropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL male/unsexed; (Ref. 137687)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 11 - 12; Anal soft rays: 9 - 10; Vertebrae: 39. This species is distinguished from its congeners by the following set of characters: pelvic fins and girdle absent; branchiostegal rays 8; vertebrae 39; six pectoral-fin rays; filament on the extremity of the first pectoral-fin ray absent; anterior segment of the infraorbital latero-sensory canal absent; dorsal 18 and ventral 13 procurrent caudal-fin rays; opercular odontodes 9-11; jaw teeth sub-incisiform, tip rounded; autopalatine with a well-developed postero-lateral process; sesamoid supraorbital slender, without lateral projections, and long, about three times antorbital length; slender opercular odontode patch, with depth about half length of dorsal hyomandibula articular facet; lateral process of the parurohyal broad; pleural ribs 17 or 18 (Ref. 137687).
Body shape (shape guide): elongated; Cross section: oval.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Costa, W.J.E.M., C.R.M. Feltrin, J.L.O. Mattos, P.F. Amorim and A.M. Katz, 2023. Phylogenetic relationships of new taxa support repeated pelvic fin loss in mountain catfishes from southern Brazil (Siluriformes: Trichomycteridae). Zoologischer Anzeiger 305:82-90. (Ref. 137687)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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