Ridged catfish (Amissidens hainesi)

Scientific name: Amissidens hainesi Kailola, 2000

The Ridged catfish (Amissidens hainesi) is a brackish-water fish of the family Ariidae. Native range: Western Central Pacific, southern New Guinea and northern Australia.

Biology

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 20 - 23; Vertebrae: 49 - 50. Palate without teeth (but autogenous tooth plates present); jaw teeth slender, in short, oblong band. Lips fleshy, thin; mouth small, lower jaw truncate. Barbels thin, short, maxillary barbel reaching only just beyond eye; base of chin barbels close together. Eye large, 14-24% HL, lateral. Dorsomedian head groove elongate, deep posteriorly. Gill rakers along posterior of all arches; gill opening slightly restricted; two large epithelial flaps on palate posteriorly and double folds on upper limb of first two gill arches. Longitudinal furrows anterodorsally on body. Fin spines thin, long, slender; adipose fin short-based, over posterior two-thirds of anal; ventral fin pad of sexually mature females scalloped and tapered. Dark grey above and iridescent purple; palate and branchial chamber often purplish brown to charcoal.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Amissidens hainesi
Family
Ariidae (Sea catfishes)
Order
Siluriformes (Catfish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
32.0
Environment
Marine; brackish; demersal
Climate
Tropical
Distribution
Western Central Pacific: southern New Guinea and northern Australia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Traumatogenic
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

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

Last updated