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Cambeva occidentalis Costa, Azevedo-Santos & Katz, 2025 |
| Family: | Trichomycteridae (Pencil or parasitic catfishes), subfamily: Trichomycterinae | |||
| Max. size: | 4.55 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | South America: Brazil. | |||
| Diagnosis: | Dorsal spines (total): 2-2; Dorsal soft rays (total): 8-8; Anal spines: 2-2; Anal soft rays: 5-5. This species is distinguished from its congeners by the following set of characters: 20 or 21 dorsal and 6-8 ventral caudal-fin rays; 25-27 interopercular odontodes and 21-24 premaxillary teeth; medial margin of the autopalatine nearly straight to slightly convex; sesamoid supraorbital with a lateral projection; anterior portion of the mesethmoid just posterior to cornu base relatively broad; dorsal process of the opercle stick-shaped; anterior portion of the preopercle not distinctively elongated; parurohyal foramen small; and posterior process of the parurohyal long, with a length about equal the lateral process length (Ref 138050). | |||
| Biology: | The species inhabits a shallow stream less than 50 cm in depth and approximately 4-5 m in width, characterized by moderate to sparse riparian cover consisting mainly of a thin line of bamboo and understory vegetation. The substrate is predominantly sandy, with sections of moderate flow lined with pebbles (Ref. 138050). | |||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||