Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Eviota: No etymology given, suggested by Christopher Scharpt: from Latin 'eu' for 'true' and 'iota' for anything very small, in combination 'truly very small' referring to it as being the smallest vertebrate at the time it has benn described by Jenkins (thus, making the suggestion by Scharpt plausible.; nigramembrana: Name an adjective combining the Latin 'nigra' (black) and 'membrana' (membrane), referring to the distinctive black pigment on the opercular membrane.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 18 m (Ref. 93270), usually - m (Ref. ). Subtropical; 0°C -
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Pacific: Japan and the Phiippines.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 93270); 1.5 cm SL (female)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 26. This species is distinguished from its congeners by the following set of characters: cephalic sensory-pore system pattern group I (complete); dorsal/anal fin-ray formula 8/8; absence of the fifth pelvic-fin ray; 5 internal bands between anal-fin origin and caudal-fin base; pale colour of pectoral fin base and the spinous dorsal fin; presence of a dark rectangular caudal-peduncle spot above midline; no broad dark and light bands; posterior edge of opercular membrane with a concentration of dark chromatophores; in life red-orange spots along bases of both dorsal fins, and belly with distinct red spots (Ref. 93270). Dorsal to anal fin-ray formula 8/8.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Greenfield, D.W. and T. Suzuki, 2013. Eviota nigramembrana, a new dwarfgoby from the Western Pacific (Teleostei: Gobiidae). Zootaxa 3637(2):169-175. (Ref. 93270)
IUCN Red List Status (Ref. 124695)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.9 - 29.3, mean 28.7 °C (based on 923 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00332 - 0.01511), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±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 (10 of 100) .