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.. More on authors: Jewett & Lachner.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 0 - 22 m (Ref. 107299). Tropical; 7°N - 24°S
Pacific Ocean: Philippines, Japan (Ryukyu Islands), Micronesia (Palau, Pohnpei, Marshall Islands), Kiribati (Phoenix and Line Islands, Caroline Island), southwards to Indonesia (Bali), Papua New Guinea, Solomon Islands, Vanuatu, Fiji, New Caledonia, and Australia (Great Barrier Reef).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.5 cm SL male/unsexed; (Ref. 48637)
Morphology | Morphometrics
soft rays: 6 - 8. This species is distinguished by the following characters: cephalic sensory-canal pore system lacking only the IT pore (pattern 2); unbranched pectoral-fin rays; dorsal/anal-fin formula is 8-9/7-8; the fifth pelvic-fin is ray 10% of 4th pelvic ray); caudal fin base with a vertical spot, proceeded by a more rounded spot; the lower caudal-fin rays with an elongate dark streak; no wavy vertical
lines crossing caudal fin. when alive, there is a narrow red line running down the lateral midline of the body (Ref. 107299).
Inhabits deep coastal slopes, subject to strong currents, on rubble reef to 30 meters depth (Ref. 48637). Collected from depths less than 1 to at least 30 m.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
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=0.00871 (0.00415 - 0.01826), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.3 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) .