Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobiinae
Etymology: Gobius: Latin, gobius = gudgeon (Ref. 45335); tetrophthalmus: Named for the impression of four eyes when the living specimen is viewed from above (Ref. 39517).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 7 - 25 m (Ref. 39517). Tropical
Eastern Central Atlantic: known only from Cape Verde.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.8 cm TL male/unsexed; (Ref. 39517); 6.0 cm TL (female)
Morphology | Morphometrics
soft rays: 12. Anterior nostril with single triangular or more elongate tentacle, posterior nostril pore-like, with slightly raised edges; angle of jaws below anterior edge of pupil; upper lip with equal to or slightly narrower than preorbital width; teeth caniniform, in three or four rows medially with outer and inner somewhat enlarged (Ref. 39517). Body pale brown with several dark brown blotches interspersed with pale saddles along dorsal midline, variously sized dark blotches along lateral midline; fine horizontal striae sometimes evident along the body; snout with antrorse V-like dark mark (Ref. 39517).
Found most commonly on mixed coralline algae, but also on open sand and rock substrata, often with Gnatholepis thompsoni (Ref. 39517).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Brito, A. and P.J. Miller, 2001. Gobiid fishes from the Cape Verde Islands, including two new species of Gobius (Teleostei: Gobioidei). J. Nat. Hist. 35:253-277. (Ref. 39517)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass 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=0.00933 (0.00422 - 0.02065), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (14 of 100) .