Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Psilogobius: Greek, psilos = hairless + Latin, gobius = gudgeon (Ref. 45335). More on authors: Watson & Lachner.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 20 m (Ref. 90102). Tropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 48637)
(total): 6 - 7;
soft rays: 9 - 10. Characterized by pale grey to brownish body color with five large, ovate dark brown blotches on side of body; anterior part of body with narrow white bars; upper half of head and body with brown mottling and small blue spots; blue streaks aligned with fin rays on median fins; prolonged and filamentous third dorsal spine; united pelvic fins, well developed frenum present; small ctenoid scales covering body; head without scales except small patch of ctenoid scales above operculum; greatest depth of body 5.4-5.6 in SL; oblong caudal fin, equal or longer than head length (Ref. 90102).
Found in sheltered coastal bays, lagoons and estuaries (Ref. 48637). Also found in sand-rubble bottoms in 1-20 m (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kuiter, R.H. and T. Tonozuka, 2001. Pictorial guide to Indonesian reef fishes. Part 3. Jawfishes - Sunfishes, Opistognathidae - Molidae. Zoonetics, Australia. p. 623-893. (Ref. 48637)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25 - 29.3, mean 28.5 °C (based on 1449 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00261 - 0.01268), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±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 (12 of 100) .