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Trichomycterus caparaoensis Costa, Barbosa & Katz, 2023 |
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photo by
Costa, W.J.E.M. et al., 2023 |
| Family: | Trichomycteridae (Pencil or parasitic catfishes), subfamily: Trichomycterinae | |||
| Max. size: | 5.34 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | South America: Brazil. | |||
| Diagnosis: | Dorsal spines (total): 2-2; Dorsal soft rays (total): 7-7; Anal spines: 2-2; Anal soft rays: 5-5. This species is distinguished from its congeners by the following set of characters: dorsal surface of the head between orbits slightly convex; RDB2-clade by a colour pattern of LDPZ3 in specimens above about 45 mm SL, consisting of a dark brown stripe interrupted in its posterior portion; longer pectoral-fin filament (filament length about 30-50% of the pectoral fin); relatively long interopercular patch of odontodes, longer than the largest horizontal length of the hyomandibular anterior outgrown; ribs (13); postero-lateral process of the autopalatine postero-laterally directed, its length about two thirds of the autopalatine length; the second hypobranchial short, about so long as the third hypobranchial; the posterior process of the parurohyal short, about half the distance between the anterior margin of the parurohyal and the anterior insertion of the posterior process; paired S6 pore; opercular odontodes (11-15); anterior section of the infraorbital canal present; eight pectoral-fin rays; pointed mandibular teeth (Ref. 137859). | |||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||