Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Oxudercidae
(Mudskippers) > Periophthalminae
Etymology: Pseudapocryptes: Greek, pseudes = false + Greek, apo = outside, far away + Greek, kryptos = hidden (Ref. 45335). More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal; amphidromous (Ref. 51243). Tropical; 23°C - 28°C (Ref. 12468)
Indo-Pacific: India to Tahiti and north to China. Common in the Mekong delta.
Length at first maturity / Size / Weight / Age
Maturity: Lm 15.4  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 12693)
Distinguished by the following characteristics: Anal fin with 28-31 total elements; body depth 9.9-13.6% SL; head length 14.8-22.0% SL; head depth 7.8-11.4% SL; pectoral fin length 10.4-13.4% SL; pelvic fin length 9.0-11.5% SL; few brown spots, if any, on body (Ref. 5218).
Found in mudflats of estuaries and the freshwater tidal zone of rivers (Ref. 12693). Amphibious air-breather (Ref. 31184).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M. and A.J. Whitten, 1996. Freshwater fishes of Western Indonesia and Sulawesi: additions and corrections. Periplus Editions, Hong Kong. 8 p. (Ref. 13275)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00392 - 0.01401), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Generation time: 1.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .