Alepisaurus brevirostris

Alepisaurus brevirostris, Shortnose Lancetfish. Source: Fishbase
Alepisaurus brevirostris, Shortnose Lancetfish.
Source: Fishbase December 22, 2025
FamilyScientific NameAuthorYearCommon Name
AlepisauridaeAlepisaurus brevirostrisGibbs1960Shortnose Lancetfish

Alepisaurus brevirostris

Unique CharactersLarge (to 1 m) aulopiform fishes, very elongate, slender and compressed flabby body. Snout short, 1/4 to 1/3 head length. Dorsal fin low in front; no free rays; dorsal-fin origin distinctly in front of pectoral-fin origin. Dorsal fin nearly as long as body and sail-like. Small adipose fin above posterior part of anal fin; pectoral fins set very low on body and longer than pelvic fins which are located about midbody. No spines present in any fins. Scales absent; caudal peduncle with midlateral adipose keel. Color: body iridescent blue-black above, grey-silver below; dorsal fin blue-black.

Similar Species: Longnose Lancetfish, Alepisaurus ferox. Large (to 2 m), very elongate, slender and compressed flabby body. Snout long, 1/3 to 1/2 head lengthDorsal fin nearly as long as body and sail-like. Dorsal-fin origin over or slightly posterior to pectoral-fin origin. Small adipose fin above posterior part of anal fin. Pectoral fins set very low on body and longer than pelvic fins which are located about midbody. 

Alepisaurus ferox, Longnose Lancet Fish. Source: NOAA.
Alepisaurus ferox, Longnose Lancetfish.
Source: NOAA.

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