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Hypomasticus australis Ito, Souza-Shibatta, Oyakawa, Garavello, Britski & Birindelli, 2025 |
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photo by
Ito, I.S.B. et al., 2025 |
| Family: | Anostomidae (Headstanders) | |||
| Max. size: | 27.34 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | South America: Brazil. | |||
| Diagnosis: | Dorsal soft rays (total): 9-10; Anal soft rays: 8-8; Vertebrae: 36-36. This species is distinguished from its congeners by the following set of characters: 12 scale rows around the caudal peduncle; presence of a subterminal mouth; three midlateral blotches; presence of a diffuse midlateral blotches; thinner lips and a larger size, with the largest specimen analyzed measuring 315.9 mm SL; mouth cleft longitudinally aligned with the ventral margin of second infraorbital bone; and three diffuse midlateral blotches, extending through 4-5 scales horizontally and 2-3 scale rows vertically (Ref. 138395). | |||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||