Paxton's escolar (Rexichthys johnpaxtoni)

Scientific name: Rexichthys johnpaxtoni Parin & Astakhov, 1987

Paxton's escolar (Rexichthys johnpaxtoni)

The Paxton's escolar (Rexichthys johnpaxtoni) is a marine fish of the family Gempylidae. Native range: Western Pacific, eastern coast of Australia between 17?31'S and 32?34'S, and from New Caledonia.

Biology

Dorsal spines (total): 19; Dorsal soft rays (total): 14-15; Anal spines: 2; Anal soft rays: 12 - 13; Vertebrae: 34. Body moderately elongate and compressed. Two lateral lines, the lower originating below the 6th to the 7th spine of the first dorsal fin, descending sharply to ventral contour of body, dividing into a short anterior branch and a much longer posterior branch. The pelvic fin represented by 1 spine and 2 tiny soft rays in smaller specimens but entirely absent in specimens over 10 cm SL. Body color is brownish, fins hyaline; first dorsal fin with a black blotch distally on two anterior membranes.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Rexichthys johnpaxtoni
Family
Gempylidae (Snake mackerels)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
22.0
Depth range
270–470 m (886–1542 ft)
Environment
Marine; benthopelagic; depth range 270 - 470 m
Climate
Deep-water
Distribution
Western Pacific: eastern coast of Australia between 17?31'S and 32?34'S, and from New Caledonia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3)

Sources

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

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