| Family: |
Trichomycteridae (Pencil or parasitic catfishes), subfamily: Microcambevinae |
| Max. size: |
4.44 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Ibicuíba River, Araruama Lagoon system in Brazil. |
| Diagnosis: |
Vertebrae: 47-49. Pectoral fin rays 4 and segmented; first ray unbranched, its tip elongate forming a filament; rays 2-4 branched with distal tip free from the membrane. Dorsal and anal fins all branched. Dorsal procurrent caudal fin rays 21-28; ventral procurrent 21-24. Mouth subterminal; lips and barbels covered by papillae. Premaxillary teeth 27-32; dentary teeth 24-31 (Ref. 41513). |
| Biology: |
Specimens collected from a small, clear water forest stream, shallow (ca. 40 cm deep), with large rocks on banks, gravel and sand on the bottom. Stomach contents include copepods and insect larvae and mites (Ref. 41513). |
| IUCN Red List Status: |
Critically Endangered (CR); Date assessed: 07 November 2018 (B2ab(iii)) Ref. (130435)
|
| Threat to humans: |
harmless |
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