Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Trimma: Greek, trimma, -atos = something crushed (Ref. 45335); volcana: Named for Volcanus, Roman god of fire, referring to the amber-red spots on an earthy brown background that resemble numerous small, volcanic vents on a lava field, and is suggestive of the hot-spot origins of the Comores Islands; noun in apposition.
More on author: Winterbottom.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 24 m (Ref. 57687). Tropical
Western Indian Ocean: Tanzania, Mozambique and the Comores Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.9 cm SL male/unsexed; (Ref. 57687); 1.7 cm SL (female)
Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Anal spines: 9 - 11. Diagnosis: Characterized by having large spots on the head and body; moderate to well-developed interorbital and postorbital trenches; scales on the pectoral and pelvic fin bases, except on cheeks, opercles, or midline of the nape; a posterior nostril which is adnate to the eye; a fifth pelvic fin ray that is 80-9% of the fourth and is branched dichotomously twice (Ref. 57687).
Body shape (shape guide): fusiform / normal.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Winterbottom, R., 2003. A new species of Trimma (Gobiidae) from the western Indian Ocean. aqua, J. Ichthyol. Aquat. Biol. 7(1):9-12. (Ref. 57687)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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