Johnson's coralbrotula (Diancistrus jeffjohnsoni)

Scientific name: Diancistrus jeffjohnsoni Schwarzhans, M?ller & Nielsen, 2005

Johnson's coralbrotula (Diancistrus jeffjohnsoni)

The Johnson's coralbrotula (Diancistrus jeffjohnsoni) is a marine fish of the family Bythitidae. Native range: Western Pacific, Western Australia to Queensland, Australia.

Biology

Dorsal soft rays (total): 70-77; Anal soft rays: 55 - 63; Vertebrae: 42 - 44. This species is distinguished by the following: Vertebrae (11-) 12+ 30-32=42-44, dorsal fin rays 70-77, anal fin rays 55-63; eyes that are moderately large (2.4-3.0% SL), D/V 6-7; outer pseudoclasper large, twice the length of the inner pseudoclasper, wing-shaped, with narrow base, flat and its posterior part strongly bent backward; inner pseudoclasper almost completely joined to outer pseudoclasper anteriorly, thin, small, with single tip, not extending over anterior part of outer pseudoclasper; narrow scale patch on cheek with 3-5 scale rows on upper cheek, single large scale on operculum above opercular spine, usually covered by mucus and skin; head is slender, elongate (head depth 14-17% SL); first and second lower preopercular pore with separate opening (not fused as in all other species of the genus); otolith slender, length to height ratio 2.2-2.3, otolith length to sulcus length 2.2-2.4, dors

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Diancistrus jeffjohnsoni
Family
Bythitidae (Viviparous brotulas)
Order
Ophidiiformes (Cusk eels)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
6.0
Depth range
2–4 m (7–13 ft)
Environment
Marine; demersal; depth range 2 - 4 m
Climate
Tropical
Distribution
Western Pacific: Western Australia to Queensland, Australia.
Conservation status (IUCN)
Not Evaluated
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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