Smooth handfish (Sympterichthys unipennis)

Scientific name: Sympterichthys unipennis Cuvier, 1817

The Smooth handfish (Sympterichthys unipennis) is a marine fish of the family Brachionichthyidae. Native range: Southwest Pacific, Endemic to Tasmania, Australia.

Biology

Dorsal soft rays (total): 19; Anal soft rays: 9. This species is distinct with a combination of the following characters: minute esca, as a simple filament (possibly damaged); illicium with thick base, thin distally, no dermal spinules, length about 18% SL, 2.7 times in head length; close-set, embedded, nonimbricate, spiny scales cover the entire body; scale bases variable in shape, dendritic to narrowly thallate, with long unicuspid or bifurcate spinules (except for those closely associated with pores of the acoustico-lateralis system); adpressed spinules, posteriorly directed, originating from posterior region of scale base, apical spines moderately divergent; second dorsal-fin rays 17, fin base 64% SL; length of second dorsal-fin spine 1.3 times length of longest ray of second dorsal fin; anal-fin rays 9; pectoral-fin rays 9; fresh coloration unknown, pale in preservative with darker markings on first dorsal fin and membranes of pectoral, pelvic and caudal fins.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Sympterichthys unipennis
Family
Brachionichthyidae (Handfishes)
Order
Lophiiformes (Anglerfishes)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
4.4
Environment
Marine; demersal
Climate
Temperate
Distribution
Southwest Pacific: Endemic to Tasmania, Australia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless

Sources

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

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