Wrinkle-jaw snailfish (Prognatholiparis ptychomandibularis)

Scientific name: Prognatholiparis ptychomandibularis Orr & Busby, 2001

The Wrinkle-jaw snailfish (Prognatholiparis ptychomandibularis) is a marine fish of the family Liparidae. Native range: Northeast Pacific, Seguam Pass, east of Seguam Island.

Biology

Dorsal soft rays: 37; Anal soft rays: 30; Vertebrae: 41. This species is distinguished by the following set of characters: projecting lower jaw anterior to upper jaw; distinct flaps and folds of skin on snout, upper jaw, and ventral portion of mandible; large pelvic disc 37.4% HL; slender body; depth at pectoral fin base 20.5% SL, at anal-fin origin 19.0% SL; 2-6-8-1 pattern of cephalic lateralis pores, no coronal and post coronal pores; 2 epurals that are fused at the base; autogenous hypural plates; with pleural ribs; no pseudobranchiae; no subcutaneous layer; no pyloric caeca.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Prognatholiparis ptychomandibularis
Family
Liparidae (Snailfishes)
Order
Scorpaeniformes (Scorpionfishes and Flatheads)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
8.8
Depth range
455 m (1493 ft)
Environment
Marine; bathydemersal; depth range 455 - 455 m
Climate
Deep-water
Distribution
Northeast Pacific: Seguam Pass, east of Seguam Island.
Conservation status (IUCN)
Data deficient (DD)
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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