Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Sicydiinae
Etymology: Cotylopus: Greek, kotyle = small vessel, a cup like cavity or organ + Greek, pous = feet (Ref. 45335); rubripinnis: Derived from the Latin ruber which means red and pinna for fin, in reference to red dorsal, caudal and pectoral fins.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C - (Ref. 57051)
Africa: Island of Mayotte, Comoros, Mahéli and Anjouan islands(Ref. 57749).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.8 cm SL male/unsexed; (Ref. 57051); 4.9 cm SL (female)
Morphology | Morphometrics
soft rays: 10. Slender body. Elongate, slightly compressed between second dorsal and anal fins, and caudal peduncle, becoming slightly cylindrical, and then slightly depressed anterior to first dorsal fin. Pectoral fins orange to red, dorsal and caudal fins orange to red with black rays, a black band on upper edge of caudal fin. Posterior part of body yellowish to reddish (Ref. 57051).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Keith, P., T. Hoareau and P. Bosc, 2005. The genus Cotylopus (Teleostei: Gobioidei) endemic to the rivers of islands of the Indian Ocean with description of a new species from Mayotte (Comoros). J. Nat. Hist. 39(17):1395-1406. (Ref. 57051)
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
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .