Teleostei (teleosts) > 
Gobiiformes (Gobies) > 
Oxudercidae (Mudskippers) > Periophthalminae						
							
							Etymology: Periophthalmus: Greek, peri = around + Greek, ophthalmos = eye (Ref. 45335).
More on author: Hamilton.						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Marine; brackish;  demersal; amphidromous (Ref. 51243). Tropical				
				 
			
			
			
				
				
				
					Indian Ocean:  India.
				
				
			
			
				
					Size / Weight / Age
				
				
				
					Maturity: Lm ?  range ? - ? cm
 Max length : 10.0 cm SL male/unsexed; (Ref. 4833)				
				 
			
			
						
				
				
				
					Dorsal spines (total): 9 - 11; Dorsal soft rays (total): 11 - 12; Anal spines: 1; Anal soft rays: 12 - 13. This is a sexually dimorphic species, with males possessing greatly elongate first spine of first dorsal fin, reaching eighth element of second dorsal fin when appressed; when preserved first dorsal fin brown or black with white distal edge, no spots; margin of first dorsal fin concave in males while concave to straight in females; second dorsal fin with two black bands, broader one located inframarginally and the other located medially, black spots basally on membrane between dorsal fin elements; pelvic fin with prominent frenum and inner rays fused for more than half of length. D1  modally IX; D2 modally I,12; A modally I,13; caudal fin rays modally 15 segmented rays, with first and last two rays unbranched; 62-67 lateral scale rows; 18-24 predorsal scales (Ref. 83659).
Body shape (shape guide): fusiform / normal.				
				 
			
			
			
			
			
			
			
				Facultative air-breathing (Ref. 126274); An intertidal and amphibious air-breather that actively shuttles back and forth between rock pools and air (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  				
				
				
					Fisheries: of no interest				
				
				
			
			
						
			
			
			
				
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					Estimates based on models				
				
				
				Preferred temperature (Ref. 
123201): 27.6 - 29.4, mean 28.6 °C (based on 192 cells).
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.01072 (0.00664 - 0.01729), b=2.92 (2.78 - 3.06), in cm total length, based on LWR estimates for this species & 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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