Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Oxudercidae
(Mudskippers) > Periophthalminae
Etymology: Periophthalmus: Greek, peri = around + Greek, ophthalmos = eye (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; reef-associated; depth range 0 - 2 m. Tropical; 30°N - 20°S
Indo-Pacific: East Africa to Samoa.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.1 cm SL male/unsexed; (Ref. 7050)
(total): 8 - 16;
soft rays: 9 - 11. Differs from P. argentilineatus by lacking thin silvery bars ventrally on the sides and having pelvic fins connected at the base by a low membrane (Ref. 37816); further characterized by: frenum of pelvic fins vestigial, but visible macroscopically; pelvic fins united by membrane for about one half their length; D1 height moderate, its margin rounded, black stripe inframarginally with numerous white spots proximally, no elongate spines; D2 with single dusky stripe inframarginally; dorsal fins not connected by membrane; D1 with 11-15 spines; longitudinal scale count 66-86; head width 16.5-22.5% SL; pelvic fin length 13.1-15.4% SL; length of anal fin base 15.9-18.7% SL; length ofD2 base 18.5-23.8% SL; total D2 elements 12-13; total analfin elements 11-12; TRDB 18-22 (Ref. 5218).
Amphibious air-breather (Ref. 31184) that spends most of its time out of the water; able to meet its oxygen requirements as long as it stays wet. Typically resting on mud, rocks, or mangrove roots with their tails dipped in the water. Active at low tide and hunt in the intertidal zone for invertebrates; feeds on worms, crustaceans, and insects as well as polychaetes living on or near surface (Ref. 92840)
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. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 26.1 - 29.3, mean 28.6 °C (based on 1953 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00475 - 0.02204), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.40 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .