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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
Etymology: Dactylosurculus: Name from Latin 'dactylus' or Greek 'dactylos' for finger and Latin 'surculus' for sucker of a grapevine tendril. Name refers to the functional analogy with the pseudoclaspers, to the specific shape of the ‘middle’ pseudoclasper; gomoni: Named for Martin Gomon, NMV, Melbourne, Australia,.
Eponymy: Dr Martin Fellows Gomon (d: 1945) is an US/Australian ichthyologist who first went to Australia to Museum Victoria Melbourne (1979) where he is Senior Curator, Ichthyology. [...] (Ref. 128868), visit book page.
More on authors: Schwarzhans & Møller.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 2 - 10 m (Ref. 76869). Subtropical

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Eastern Indian Ocean: Western Australia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 76869); 7.4 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 92 - 109; Anal soft rays: 70 - 81; Vertebrae: 45 - 50. This species is distinguished by the following set of characters: anterior nostril low on snout; copulatory organ of males with 3 pairs of pseudoclaspers, all joined at base in narrow stalked stem, the outer pseudoclasper is wing-shaped, V-shaped flap-like inner pseudoclasper anteriorly joined to outer pseudoclasper, short, second inner pseudoclasper inserted between the two, intermediate in length, finger-like in shape, with supporter; moderately large species, reaching to about 7.0 cm SL; 13-14 precaudal vertebrae, 45-50 total vertebrae; 22-26 pectoral fin rays; 8-9 branchiostegal rays; a small scale patch on upper cheek only on the head; scales on operculum absent; upper preopercular pore present; small pore below the eye; elongated otolith, its length to height 2.1-2.3, inclined sulcus, fused colliculi; maxilla is expanded posterio-ventrally (Ref. 76869).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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Schwarzhans, W. and P.R. Møller, 2007. Review of the Dinematichthyini (Teleostei: Bythitidae) of the Indo-west Pacific. Part III. Beaglichthys, Brosmolus, Monothrix and eight new genera with description of 20 new species. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 23:29-110. (Ref. 76869)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 16 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

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Estimates based on models

Preferred temperature (Ref. 123201): 15.3 - 18.8, mean 17.5 °C (based on 159 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [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): 3.3 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Dactylosurculus gomoni Schwarzhans & Møller, 2007