Teleostei (teleosts) > 
Gobiiformes (Gobies) > 
Oxudercidae (Mudskippers) > Periophthalminae						
							
							Etymology: Periophthalmus: Greek, peri = around + Greek, ophthalmos = eye (Ref. 45335).
						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Marine; freshwater; brackish;  demersal; amphidromous (Ref. 46888). Tropical				
				 
			
			
			
				
				
				
					Western Pacific:  Singapore (type locality), Indonesia and the Philippines.
				
				
			
			
				
					Size / Weight / Age
				
				
				
					Maturity: Lm ?  range ? - ? cm
 Max length : 9.0 cm SL male/unsexed; (Ref. 7050)				
				 
			
			
						
				
					Short description					
					Identification keys | Morphology | Morphometrics					
				
				
				
					Distinguished by the following characteristics: pelvic frenum prominent; pelvic fins partially  united by basal membrane; D 1 height moderate, its margin slightly rounded, a brown stripe inframarginally with numerous white spots proximally, first spine elongate; D2 with single dusky stripe mesially; dorsal fins not connected by membrane; D 1 with 9-10 spines; longitudinal scale count 47-61; head width 14.3-19.5% SL; pelvic fin length 13.6-16.1 % SL; length of anal fin base 15.4-20.6% SL; length ofD2 base 17.0-23.2% SL; total D2 elements 11-12; total anal fin elements 11-12; TRDB 14-17 (Ref. 5218).
				
				 
			
			
			
			
			
			
			
				Facultative air-breathing (Ref. 126274); 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. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
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Special reports
 
				
			
			
			
				
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					Estimates based on models				
				
				
				Preferred temperature (Ref. 
123201): 28 - 29.2, mean 28.8 °C (based on 616 cells).
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this 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.).					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (10 of 100). 
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