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Gyrinomimus amaokai Su, Paxton & Ho, 2026 Amaoka’s flabby whalefish |
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photo by
Yo Su et al., 2026 |
| Family: | Cetomimidae (Flabby whalefishes) | |||
| Max. size: | 47.5 cm SL (male/unsexed) | |||
| Environment: | bathypelagic; marine; depth range 0 - 3000 m | |||
| Distribution: | Northwest Pacific: Japan. | |||
| Diagnosis: | Vertebrae: 51-53. This species is distinguished from its congeners by the following set of characters: 2-5 (very rarely 1) spines on dorsal and ventral arms of the lateral-line scales which, at least in preserved specimens, penetrate the skin of the lateral-line canal; cavernous tissue present around anus and extending to base of anterior 2nd-14th anal-fin rays; filaments on fourth gill arch well developed, its length 43.2-64.6% filament on first arch; anal lappets 8-14, with last over anal-fin rays 12-16, and with scales; vertebrae 32-34 + 17-20 = 51-53; GRIII 1 + 1 + 1; dorsal-fin rays 17-21; anal-fin rays 17-20; lateral-line pores 18-22; lateral-line scales 17-21; and IO 7 + 2 (very rarely 8 + 2) and copular tooth plate elongated, greatest width 3.3-4.1 in length (Ref. 138879). | |||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||