Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Trichomycteridae
(Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); caipora: From the Tupi, kaa’pora (forest dweller), a forest dwelling creature of the Tupi mythology, with orange hair and a protector of the wildlife; an allusion to the fact that the new species is endemic to the Atlantic Rain Forest and possesses
orangis. More on author: Costa.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; 22°S - , 41°W -
South America: Brazil. Known from the type locality in the mountain streams of the rio Macabu basin, lagoa Feia drainage, serra de Macaé, northern Rio de Janeiro State, southeastern Brazil. The new species can be found in several sites in the upper and middle reaches
of the rio Macabu and its tributary streams (Ref. 79019).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.6 cm SL male/unsexed; (Ref. 79019)
Morphology | Morphometrics
Body moderately deep, subcylindrical on anterior portion, compressed on caudal peduncle. Dorsal profile slightly convex between snout and end of dorsal-fin base, approximately straight from this point to base of caudal fin. Ventral profile convex between lower jaw and end of anal-fin
base, straight on caudal peduncle. Head depressed, longer than wider, subtriangular in dorsal view. Eye at middle of head, orbital rim not free. Skin covering eye thin and translucent. Snout blunt. Mouth subventral. Lower lip with conspicuous lateral fleshy lobes. Tip of nasal barbel reaching posterior margin of eye. Tip of maxillary and rictal barbels reaching anterior portion of interopercular patch of odontodes. Base of maxillary and rictal barbels, lips and ventral portion of head covered by papillae. Pectoral-fin rays i,8. Pectoral fin somewhat triangular, lateral and posterior edges slightly convex. First pectoral-fin ray terminating as long filament. Dorsal and anal fins approximately triangular. Caudal fin emarginate. Dorsal-fin rays vii,5-6; anal-fin rays v,5; pelvic-fin rays i,4; principal caudal-fin rays 6+7, dorsal procurrent rays 12-16, ventral procurrent rays 11-15. Free vertebrae 35-36; precaudal vertebrae 12; caudal vertebrae 23-24.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lima, S.M.Q., H. Lazzarotto and W.J.E.M. Costa, 2008. A new species of Trichomycterus (Siluriformes: Trichomycteridae) from lagoa Feia drainage, southeastern Brazil. Neotrop.l Ichthyol. 6(3):315-322. (Ref. 79019)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .