Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); leisi: Named for Jeffrey Leis, Sydney, Australia.
Eponymy: Dr Jeffrey Martin Leis (d: 1949) is a larval-fish biologist and Adjunct Professor at the Institute for Marine and Antarctic Studies, University of Tasmania. [...] (Ref. 128868), visit book page.
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 2 - 17 m (Ref. 57884). Subtropical
Western Pacific: Great Barrier Reef north of 15°S ( Australia).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.3 cm SL male/unsexed; (Ref. 57884); 4.6 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 69 - 73; Anal soft rays: 55 - 57; Vertebrae: 41. The species is distinguished by having the following characters: Vertebrae 11+30=41, dorsal fin rays 69-73, anal fin rays 55-57; eyes small (1.7-1.9% SL), D/V 6; outer pseudoclasper short, only slightly longer than inner pseudoclasper, stick-shaped; inner pseudoclasper anteriorly joined to outer pseudoclasper, thin, spiny, strongly forward inclined; narrow scale patch on cheek with 3-4 scale rows on upper cheek and only 1-2 scale rows on lower cheek, no scales on operculum; head high, laterally strongly compressed, eye located high; otolith length to height ratio 2.0-2.1 (Ref. 57884).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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