Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobionellinae
Etymology: Gnatholepis: Greek, gnathos = jaw + Greek,lepis = scale (Ref. 45335).
Environment / Climate / Range
Marine; brackish; reef-associated; depth range 3 - 50 m (Ref. 90102), usually 2 - 20 m (Ref. 27115). Tropical; 30°N - 28°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 48637)
soft rays: 10 - 12. In life, body pale greenish grey dorsally, shading to whitish below, the dark brown lines on body, the irregular dark markings on head, and spots in fins reddish brown; no yellow spot in dark blotch above pectoral base (usually present in this subspecies); dark bar below eye brownish red; dark reddish brown line dorsally on eye; cheek with 10 blue dots; pelvic fins whitish. Body when preserved whitish with 7-8 longitudinal brown lines with a darker brown dot on each scale; a series of 6 roundish dark brown blotches on lower side, progressively smaller posteriorly (first 2 covered by pectoral fin), with a 7th small blotch at the base of caudal fin; upper third of body with 2 longitudinal series of smaller, less distinct, dark brown blotches. A diffuse, dark brown blotch above base of pectoral fin. Head heavily mottled with small dark brown blotches and spots; a narrow dark brown bar extending ventrally from eye and passing through a brown blotch about 3/4 size of eye; a dark brown spot on side of upper lip. Dorsal and caudal fins with small dark brown spots forming irregular bands, caudal spots only on membranes; anal fin with a brown line at base, then a translucent whitish band, the outer 2/3 or more dusky; pectoral fins with small faint dusky spots, its base with 4 dusky lines, 2 of which extend unto proximal part of fin; pelvic fins dusky. Scales in longitudinal series usually 30. Transverse scales 10. Predorsal scales 8. Usually no scales on cheek completely anterior to dark bar below eye. Prepelvic scales extending to a vertical at rear margin of preopercle (Ref. 41653). Maxillary does not extend to vertical of anterior eye margin. First dorsal spine extends to base of second dorsal when depressed; 3rd and 4th longest. Last dorsal and anal ray reach caudal when depressed (Ref. 43541).
Indo-Pacific: widespread from South Africa to Pitcairn I.; in the Pacific north to Miyake-jima, Japan, south to Sydney Harbour, Australia; in the Indian Ocean north to Djibouti (Gulf of Tadjourah) and south to Aliwal Shoal, Kwa-Zulu Natal.
A common species that occurs in sheltered sandy areas from reef flats to seaward reefs; over sandy bottoms near pieces of rubble, rock, or coral (live or dead) (Ref. 9710, 48637, 92171). Solitary or in small groups (Ref. 90102).
Larson, H.K. and D.J. Buckle, 2012. A revision of the goby genus Gnatholepis Bleeker (Teleostei, Gobiidae, Gobionellinae), with description of a new species. Zootaxa 3529:1-69.
IUCN Red List Status (Ref. 90363)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00356 - 0.01857), b=3.06 (2.87 - 3.25), based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.4 ±0.1 se; Based on diet studies.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .