Common names from other countries
Actinopteri (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Dinematichthyidae
Etymology: Alionematichthys: Name from Latin alius meaning the other or different, and nematichthys, the stem of the genus name Dinematichthys, to which this genus is most similar.. More on author: Alcock.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 0 - 12 m (Ref. 90102). Subtropical
Eastern Indian Ocean to Western Central Pacific: Andaman Is. to Sumatra, Thailand, Vietnam, Taiwan and the Ryukyu Is., north to Australia (up to Lord Howe I.) and eastwards to Micronesia, Line Is., Tuamotus and Pitcairn Group.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.4 cm SL male/unsexed; (Ref. 81230)
Morphology | Morphometrics
soft rays: 55 - 70;
Vertebrae: 40 - 45. This species is distinguished by the following characters: D 72-88; A 55-70; moderately large eyes (1.7-2.8%SL); slender body; blunt snout, many cirri; cheeks with scales and rarely 1-2 scales above opercular spine; with upper preopercular pore; outer pseudoclasper broad-based, large, often extending beyond hood when in resting position, while the inner one is small, with equal anterior and posterior lobes; otolith length to height 1.9-2.1, with gently curved dorsal rim; otolith length to sulcus length 1.5-1.6, ostium length to caudal length 3.5-4.5; vertebrae 11-12 + 29-33 = 40-45 (Ref. 81230).
Occurs in holes and crevices of coralline and volcanic rock (Ref. 71230). Cryptic and solitary in shallow water (<12 m) (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Møller, P.R. and W. Schwarzhans, 2008. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-west Pacific, Part IV. Dinematichthys and two new genera with descriptions of nine new species. The Beagle 24:87-146. (Ref. 81230)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.3 - 29.3, mean 28.4 (based on 2464 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5005 [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
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .