Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Elacatinus: Greek, elakatines = fusiform fishes preserved in salt (Ref. 45335); serranilla: Named for the type locality, the Serranilla Bank. More on authors: Randall & Lobel.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range - m (Ref. ), usually 15 - 24 m (Ref. 81169). Tropical; 0°C - ; 16°N - 15°N, 79°W - 80°W
Caribbean Sea: Serranilla Bank and Jamaica (Ref. 81169).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL male/unsexed; (Ref. 81169)
Morphology | Morphometrics
soft rays: 10. Dorsal rays VII + I,10; anal rays I,10; pectoral rays 17–18, usually 18; no scales; body and
fins covered with thick adherent mucus; mouth subterminal; tongue truncate; no rostral frenum; color in alcohol: narrow dark brown stripe extending posteriorly from upper part of eye, broadening laterally on body, and ending diffusely at midposterior end of caudal fin; a narrow dark brown stripe from base of upper lip,
passing just above eye, then dorsally on body below base of dorsal and fins, and continuing into dorsal part of caudal fin; narrow zone between dark stripes pale gray-brown; body below lateral dark stripe pale graybrown; fins translucent yellowish; in life, dark stripes black, narrow pale stripe between stripes bright bluish white, and body below lateral black stripe pale bluish gray; a narrow mid-dorsal bluish white band on snout from behind upper lip to front of interorbital space (Ref. 81169).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E. and P.S. Lobel, 2009. A literature review of the sponge-dwelling gobiid fishes of the genus Elacatinus from the western Atlantic, with description of two new Caribbean species. Zootaxa 2133:1-19. (Ref. 81169)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00475 - 0.02204), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.3 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .