Barred Mudskipper

Periophthalmus sobrinus Eggert, 1935 is a junior synonym of Periophthalmus argentilineatus Valenciénnes, 1837 (see Murdy, 1989)

Distinguished by the following characteristics: pelvic fins lacking frenum; little or no membrane uniting medial most pelvic rays; Dl height moderate, its margin usually convex, occasionally straight, with a black stripe inframarginally and numerous small, white spots posteriorly on fin, no elongate spines; D2 with single, dusky stripe mesially; dorsal fins not connected bymembrane; Dl with 11-16 spines; longitudinal scale count 64-100; head width 14.3-22.6% SL; pelvic fin length 11.3-15.2% SL; length of anal fin base 14.0-19.4% SL; length ofD2 base 17.6-23.7% SL; total D2 elements 10-13 total anal fin elements 9-12; TRDB 18-26 (Ref. 5218).

Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).

Dorsal spines (total): 12 - 17; Dorsal soft rays (total): 9 - 12; Analspines: 1; Analsoft rays: 8 - 11

A resident intertidal species with homing behavior (Ref. 32612) and amphibious air-breather (Ref. 31184) found in brackish mud flats in mangrove and nipa palm areas. Occasionally in the lower parts of freshwater streams (Ref. 2847). Actively shuttling back and forth between rockpools and air (Ref. 31184). Feeds on worms, crustaceans, and insects (Ref. 37816).

A resident intertidal species with homing behavior (Ref. 32612, 48637) and amphibious air-breather (Ref. 31184, 79840) found in brackish mud flats in mangrove and nipa palm areas. Occasionally in the lower parts of freshwater streams (Ref. 2847, 44894, 48637, 79840). Actively shuttling back and forth between rock pools and air (Ref. 31184). Feed on worms, crustaceans, and insects (Ref. 37816). Can stay out of the water for up to 37 h if kept moist (Ref. 51276).

fisheries: of no interest; aquarium: commercial

Ko Phi Phi, Thailand

The barred mudskipper (Periophthalmus argentilineatus) or silverlined mudskipper, is a species of mudskippers native to marine, fresh and brackish waters from the African coast of the Indian Ocean, to the Marianas and Samoa in the western Pacific Ocean, and from the Ryukyus south to Australia. This species occurs in mangrove forests and nipa palm stands and can cross surfaces of mud while out of the water. This species can reach a length of 19 centimetres (7.5 in) TL. It can also be found in the aquarium trade.
Parasites of the barred mudskipper include Acanthocephalan larvae and the small Opecoelid Digenean (Opegaster ouemoensis) parasite in the intestine and described from fish collected in New Caledonia.

Amphibious species inhabiting brackish mud flats in mangrove and nipa palm areas. Able to climb out of water (Ref. 4756).