Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Sicydiinae
Etymology: Sicyopus: Greek, sika, sikya = cucumber + Greek, pous = foot (Ref. 45335); lord: The species is named after Clara Lord, for her extensive and enthusiastic work on Sicydiinae, and is defined as a noun in apposition (Ref. 87905)
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal; amphidromous; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Africa: streams of northeastern Madagascar (Ref. 87905).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.9 cm SL male/unsexed; (Ref. 87905); 4.7 cm SL (female)
Morphology | Morphometrics
soft rays: 10. Diagnosis: A Sicyopus species which is distinguished from all the other species with the following set of characters: (i) a particular colour pattern, being similar in both sexes with three blackish bands present on the flanks: the first band extends from the tip of snout and upper lip, under the eye to the posterior edge of operculum and pectoral base, and from pectoral base to hypural; the second extends from behind the eye to the caudal fin; and the third runs along the upper part of flank from above the pectoral fin to the second dorsal fin base; (ii) a second dorsal fin with nine soft rays; (iii) a shorter caudal fin length in male; (iv) more scales in lateral series, 35–43, and transverse back scale series, 12–18 (Ref. 87905).
Found in clear, high-gradient streams with rocky bottoms; it lives on the bottom of the river, on top of rocks, but it is also often seen swimming in open water in the current between rocks or in large pools (Ref. 87905). It is supposed, like the other Sicyopus, to be amphidromous (Ref. 87905).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Keith, P., G. Marquet and L. Taillebois, 2011. Discovery of the freshwater genus Sicyopus (Teleostei: Gobioidei: Sicydiinae) in Madagascar, with a description of a new species and comments on regional dispersal. J. Nat. Hist. 45(43-44):2725-2746. (Ref. 87905)
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
= 0.5010 [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
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .