Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Cryptocentrus: Greek, kryptos = hidden + Greek, kentron = sting (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 1 - 10 m (Ref. 90102). Tropical
East indian Ocean to Western Pacific: Andaman Sea to Papua New Guinea and Palau; north to Yaeyama Islands and throughout the East Indian region.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. 90102)
Morphology | Morphometrics
soft rays: 9. This species is characterized by the following: D VI + !,10; A I,9; pectoral fin-rays 16-18; pelvic fin united , frenum present; longitudinal scales 75-82; head no scales; greatest body depth 4.1-5.2 in SL; caudal fin rounded, longer than head length; variable coloration ranging from yellow to mainly dark brown; diffuse bars on side; a pair of large, distinct dark-brown streaks above rear corner of the mouth and a second pair on gill cover; blue streaks on pelvic, anal and caudal fins. The yellow or yellowish brown variety has the same head markings (usually fainter), blue spots on the head, pale saddles across top of head and back; blue streaks on yellow pelvic and anal fins. The dark variety have similar head markings to pale and yellow varieties, but mainly dark brown body with several pale saddles across the back. All varieties have short bar across upper pectoral-fin base (Ref. 90102).
Inhabits sand-silt bottoms (Ref. 90102); associated with alpheid shrimps (Ref. 96641).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R. and M.V. Erdmann, 2012. Reef fishes of the East Indies. Perth, Australia: Universitiy of Hawai'i Press, Volumes I-III. Tropical Reef Research. (Ref. 90102)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 26.7 - 29.3, mean 28.7 °C (based on 1817 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00330 - 0.01518), 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
): 3.3 ±0.4 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.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).