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Costa et al. 2024 (3)

Description: Cambeva rotundipinna differs from all other congeners of the Cambeva beta-clade, except C. luteoreticulata, by having a relatively short and rounded caudal fin in specimens above about 60 mm SL (Fig. 10A; vs. subtruncate, truncate, emarginate or forked). Cambeva rotundipinna differs from C. luteoreticulata by having fewer procurrent caudal-fin rays (15–17 dorsal and 10 or 11 ventral, vs. 21 or 22 and 15 or 16, respectively), jaw teeth irregularly arranged (vs. arranged in three rows), more opercular odontodes (14–17 vs. nine or ten), longer nasal barbel in specimens above 60 mm SL, reaching area between orbit and opercular patch of odontodes (vs. reaching area anterior to orbit), and a colour pattern of juveniles, in which the flank is light brownish yellow with small black dots irregularly arranged (vs. pale yellow with large, irregularly shaped dark brown to black blotches, more concentrated on its dorsal portion), (Costa et al. 2024). Etymology: The specific name rotundipinna, From the Latin rotundus (rounded) and pinna (fin or wing), an allusion to the rounded fins of this new species, (Costa et al. 2024).

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Trichomycteridae

South America: Known from two close localities in the Rio da Paca, a tributary of the Rio Jangada, Rio Iguaçu drainage, Rio Paraná basin, at about 1000 m asl.

8.0cm. (3¼ins)

22-26°c (71-79°f.)

6.0-7.0.

Costa WJEM, Feltrin CRM, Mattos JLO, Katz AM (2024) Top mountain areas of subtropical southern Brazil sheltering four new small-ranged catfishes (Siluriformes, Trichomycteridae): relationships and taxonomy. Evolutionary Systematics 8(2): 199-218.
Fish in the News 2024.