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); rotundipinna: Name rotundipinna from the Latin words 'rotundus' and 'pinna', meaning 'rounded' and 'fin or wing', in allusion to the rounded fins of this new species.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Subtropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.8 cm SL male/unsexed; (Ref. 137708)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 2; Anal soft rays: 5; Vertebrae: 39. This species is distinguished from its congeners by the following set of characters: relatively short and rounded caudal fin in specimens above about 60 mm SL; procurrent caudal-fin rays 15-17 dorsal and 10 or 11 ventral; jaw teeth irregularly arranged; opercular odontodes 14-17; longer nasal barbel in specimens above 60 mm SL, reaching area between orbit and opercular patch of odontodes; colour pattern of juveniles, in which the flank is light brownish yellow with small black dots irregularly arranged; odontodes 14-17 opercular and 30-34 interopercular; broader autopalatine, with its largest width about equal to its length; posterior process of the parurohyal, its length about one third of the distance between the anterior margin of the parurohyal and the anterior insertion of the posterior process; 7 pectoral-fin rays; absence of the anterior infraorbital; posterior margin of the caudal fin convex; hypertrophied papillae on the ventral surface of the head absent; pectoral-fin filament absent; 9-10 opercular odontodes; 30-34 interopercular odontodes; 15-17 dorsal procurrent caudal-fin rays; 10 or 11 ventral procurrent caudal-fin rays; dorsal-fin origin at a vertical through the centrum of the 21st or 22nd vertebra; jaw teeth pointed, irregularly arranged; and 39 vertebrae (Ref. 137708).
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 and A.M. Katz, 2024. Top mountain areas of subtropical southern Brazil sheltering four new small-ranged catfishes (Siluriformes, Trichomycteridae): relationships and taxonomy. Evolutionary Systematics. 8:199-218. (Ref. 137708)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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