Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Gladiogobius: Latin, gladius = sword + Latin, gobius = gudgeon (Ref. 45335); rex: Named for its brave appearance with armature consisting of a very long , sword-like preopercle spine; Latin 'rex' for king.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 2 m (Ref. 90102). Tropical
Indian Ocean: Andaman Sea to Red Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.9 cm SL male/unsexed; (Ref. 79803)
Morphology | Morphometrics
(total): 6 - 7;
soft rays: 9. Characterized by pale grey body color with narrow brown stripes and longitudinal rows of bluish white dots on side of body; lower side of body with row of five rectangular brown blotches; irregular brown markings on back; head with dark oblique lines; presence of large brown spot above pectoral fin base; dorsal spines sometimes with filamentous tips; rounded caudal fin; longitudinal scale series 23-25; head and nape without scales; ctenoid body scales except cycloid on abdomen, pectoral fin base and prepelvic region; median predorsal scales absent; opening of gill not reaching to above edge of preopercle; very long cheek spine, length about twice eye diameter and extending well beyond posterior margin of opercular membrane; depth of body 4.8-6.0 in SL (Ref. 90102).
Inhabits shoreline reefs and intertidal flats with sand, mud, or silt bottoms in 0-2 m (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shibukawa, K. and G.R. Allen, 2007. Review of the cheek-spine goby genus Gladiogobius (Actinopterygii, Perciformes, Gobiidae), with descriptions of two new species from the Indo-West Pacific. Bull. Natl. Mus. Nat. Sci., Ser. 33(4):193-206. (Ref. 79803)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 28.3 - 29.3, mean 28.8 °C (based on 1122 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00261 - 0.01268), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .