Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Opistognathidae
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); fossoris: Name from the Latin 'fossorius' meaning adapted to digging.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 12 - 32 m (Ref. 75633). Tropical
Eastern Pacific: Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL male/unsexed; (Ref. 75633); 9.2 cm SL (female)
Morphology | Morphometrics
(total): 11 - 12;
soft rays: 15 - 17;
Vertebrae: 28. This robust species is of moderate size (4.8-9.4 cm SL) possess the following set of features: upper jaw sexually dimorphic, longer in adult males; a black stripe on the inner lining of maxilla and adjacent membranes; D 15-17, A III; 21-24 gill rakers on lower limb of first arch; multifid nasal cirrus in adults; upper margin of subopercle is extended dorsally as a broad membranous flap; presence of a small black spot at tip of first and second dorsal-fin spines, no ocellated dorsal-fin spot (except in juveniles); body with 6 wide brown bars, usually discontinuous with corresponding markings on dorsal fin, but not below midline; 17 (rarely) or 18 caudal vertebrae (Ref. 75633).
Specimens collected with ichthyocides (Ref. 75633).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bussing, W.A. and R.J. Lavenberg, 2003. Four new species of eastern tropical Pacific jawfishes (Opistognathus: Opistognathidae). Rev. Biol. Trop. 51(2):529-550. (Ref. 75633)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 20.6 - 27.7, mean 22.9 (based on 14 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .