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Hoplostethus platynotus Su, Kotlyar, Lin, Kawai & Ho, 2024 Flatbacked black-fin roughy |
| Family: | Trachichthyidae (Slimeheads) | |||
| Max. size: | 23 cm SL (male/unsexed) | |||
| Environment: | bathypelagic; marine; depth range 703 - 843 m | |||
| Distribution: | Eastern Indian Ocean: Indonesia. | |||
| Diagnosis: | Dorsal spines (total): 5-5; Dorsal soft rays (total): 13-13; Anal spines: 3-3; Anal soft rays: 9-9; Vertebrae: 27-27. This species is distinguished from its congeners by the following set of characters: body soft and dusky; bony ridges on the head and fin rays delicate; body scales deciduous; gular region covered with ctenoid scales; pelvic-fin spine smooth on its anterior edge; head depth smaller than its length, 37.2%-38.6% SL or 94.7%-99.2% HL; pectoral-fin length 35.6%-37.8% SL, with tip reaching beyond vertical through anal-fin origin to middle of anal-fin base; abdominal scutes well developed, 12-16; pectoral-fin rays uniformly black, 17-19; gill rakers on outer surface of first arch 6-7 + 1 + 13-14 = 21; pre-dorsal scales 24-27; pyloric caeca 32; moderate body size 230 mm SL (Ref. 133164). | |||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||