Scaleless flabby whalefish (Gyrinomimus alepis), first described by Su, Paxton & Ho, 2026 is a small fish in the family Cetomimidae (order Beryciformes). Adults typically reach 6.20 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 1900 metres. It occurs in Tropical waters.
Vertebrae: 54. This species is distinguished from its congeners by the following set of characters: single ridge of skin over the anal fin with incipient anal lappets without scales; filaments on fourth gill arch well developed, its length 82.4% filament on first arch; cavernous tissue present around anus and extending to base of third anal-fin ray; vertebrae 36 + 18 = 54; GRI 2 + 1 + 8; medial GRI 4; medial GRII 1; dorsal-fin rays 15; anal-fin rays 15; lateral-line pores 17; lateral-line scales 16; and copular tooth plate rather broad, greatest width 2.1 in length .: elongated.
Behavioural data for Scaleless flabby whalefish is currently being reviewed.
Marine; bathypelagic; depth range 0 - 1900 m . Tropical
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