Teleostei (teleosts) > 
Gobiiformes (Gobies) > 
Oxudercidae (Mudskippers) > Periophthalminae						
							
							Etymology: Periophthalmus: Greek, peri = around + Greek, ophthalmos = eye (Ref. 45335).
Eponymy: Max Wilhelm Carl Weber van Bosse (1852–1937) was a Germanborn Dutch physician and zoologist, and Director of the Zoological Museum in Amsterdam (1883) (when he became a naturalised Dutch citizen). [...] (Ref. 128868), visit book page.
						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Brackish;  demersal; amphidromous (Ref. 51243). Tropical; 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)				
				 
			
			
						
				
				
				
					Dorsal spines (total): 5 - 17; Dorsal soft rays (total): 10 - 13; Anal spines: 1; Anal 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).
Body shape (shape guide): fusiform / normal.				
				 
			
			
			
			
			
			
			
				Facultative air-breathing (Ref. 126274); 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. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
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					Estimates based on models				
				
				
				
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.01096 (0.00514 - 0.02340), b=2.97 (2.79 - 3.15), 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.).					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (10 of 100). 
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