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
Brackish; demersal; amphidromous (Ref. 51243); depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C - ; 2°S - 19°S
Western Pacific: restricted to Irian Jaya (Indonesia), Papua New Guinea and northern Australia. Records from the Ganges Delta in the Indian region probably refer to Periophthalmodon septemradiatus.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 44894)
Morphology | Morphometrics
(total): 5 - 17;
soft rays: 8 - 11. Distinguished by the following characteristics: Pelvic frenum lacking or only visible with
magnification; in males, Dl height moderate, its margin almost straight, no stripe on fin only a few pale blue spots in life, white spots in preservative, all spines extend beyond membrane and first spine more than twice as long as others, dorsal fins contiguous, connected by membrane; in females, Dl negligible, represented by only a few short spines; D2 in both sexes lacking stripes; D 1 with 4-16 spines; longitudinal scale count 46-52; head width 15.4-19.4% SL; pelvic fin length 15.0-17.1 % SL ; length of anal fin base 14.2-18.5% SL; lengthofD2 base 20.6-26.8% SL; total D2 elements 11-14; total anal fin elements 9-12; TRDB 12-17 (Ref. 5218).
Inhabits brackish mangroves including the margin of estuaries and tidal creeks. Also penetrates the lower, tidal portions of freshwater streams (Ref. 44894). Appears to be restricted to tidal fresh waters in areas of mangrove and nipa palms (Ref. 2847). Amphibious air-breather (Ref. 31184).
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. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00493 - 0.02225), 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
): 3.2 ±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.).
Vulnerability (Ref. 59153
): Low vulnerability (13 of 100) .