Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: rubrigenis: Named for the distinctive red stripe on the cheek, not found on Greenbanded Gobies from other locations.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated. Tropical
Distribution
Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Atlantic: Caribbean, Bay Islands of the Gulf of Honduras.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.9 cm SL (female)
A species of Elacatinus with dorsal-fin elements VII, 11 (rare 10); anal-fin elements 10 (uncommon 9); pectoral-fin rays 20 (20–22); pelvic fins fully-joined, short cup-like disk complete; no scales; a pale head with a prominent red stripe from the tip of the snout across the eye ending abruptly above the pectoral-fin base with a short orange segment, followed by a short black segment; notably with an additional red stripe across the cheek from the corner of the jaw to the mid-pectoral-fin base; a dark green body with 23–26 thin light green bars along the full length of the body (Ref. 84089).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Victor, B.C., 2010. The Redcheek Paradox: the mismatch between genetic and phenotypic divergence among deeply-divided mtDNA lineages in a coral-reef goby, with the description of two new cryptic species from the Caribbean Sea. J. Ocean Sci. Found. 3:2-16. (Ref. 84089)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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