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Lophiiformes (Anglerfishes) >
Brachionichthyidae (Handfishes)
Etymology: unipennis: Name from Latin 'unus' for one, and 'penna' for wing, presumably in allusion to its wing-like first dorsal fin.
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Temperate
Southwest Pacific: Endemic to Tasmania, Australia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 82446)
Short description
Identification keys | Morphology | Morphometrics
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 (Ref. 82446).
A benthic species (Ref. 75154) which occurs inshore (Ref. 7300, 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6251 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
