Periophthalmus walailakae Darumas & Tantichodok, 2002
photo by Devarapalli, P.

Family:  Oxudercidae (Mudskippers), subfamily: Periophthalminae
Max. size:  11.6 cm SL (male/unsexed); 12.7 cm SL (female)
Environment:  demersal; brackish
Distribution:  Eastern Indian Ocean: Andaman coast of southern Thailand to Western Pacific in Singapore.
Diagnosis:  Dorsal spines (total): 9-10; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 8-10. Teeth in both jaws in a single row; snout, isthmus and interorbital region with no scales; frenum strongly prominent; pelvic fins completely joined by membrane for entire length to form a disk; dorsal fins well separated; first dorsal brownish red with a white margin, its margin rounded; second dorsal fin with a black stripe in middle of fin; dark brown and pale yellow spots on head and trunk (Ref. 49729). Caudal fin asymmetrically rounded (Ref. 49729).
Biology:  Found in mangrove forests (Ref. 49729). Builds burrows 9-13 cm wide and 100-120 cm deep (Ref. 49729). Nocturnal, leaving the burrow to feed in the evening and returning in the morning (Ref. 49729).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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