Teleostei (teleosts) > Gobiiformes
(Gobies) > Oxudercidae
(Mudskippers) > Oxudercinae
Etymology: Apocryptodon: Greek, apo = outside, far away + Greek, kryptos = hidden + Greek, odous = teeth (Ref. 45335).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal; amphidromous (Ref. 46888); depth range 0 - ? m. Tropical
Indo-West Pacific: east coast of India to the Philippines, north to Japan, south to Australia (Ref. 5218). Record from Sulaibikhat Bay, Persian Gulf (Ref. 80050) needs verification.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm TL male/unsexed; (Ref. 12693); max. published weight: 7.00 g (Ref. 125282)
Distinguished by the following characteristics: five, brown, roundish blotches along the
lateral midline; predorsal scales 19-27 (Ref. 5218).
Facultative air-breathing (Ref. 126274); Found in fresh and brackish waters (Ref. 4833). Browses on diatoms; not active at low tide, staying in burrows made by Alpheus bisincisus and others.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Murdy, E.O., 1989. A taxonomic revision and cladistic analysis of the oxudercine gobies (Gobiidae: Oxudercinae). Rec. Aust. Mus., Suppl. 11:1-93. (Ref. 5218)
IUCN Red List Status (Ref. 126983)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 24.5 - 29.1, mean 28.3 °C (based on 1248 cells).
Phylogenetic diversity index (Ref. 82804
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00220 - 0.01040), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 2.0 ±0.00 se; based on food items.
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).