Teleostei (teleosts) > 
Cyprinodontiformes (Rivulines, killifishes and live bearers) > 
Goodeidae (Splitfins) > Empetrichthyinae						
							
							Etymology: Empetrichthys: Greek, empetros = growing in rocks (Ref. 45335).
						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Freshwater;  demersal; pH range: 7.8 - 8.4; dH range: 7 - 30; non-migratory. Temperate; 20°C - 25°C (Ref. 12468); 37°N -   36°N				
				 
			
			
			
				
				
				
					North America:  restricted to three springs in Pahrump Valley, Nye County in Nevada, USA where it was the only native fish.  Now exists only outside Pahrump Valley, where it was transplanted to prevent its extinction.  Three subspecies were recognized:  Empetrichthys latos latos, the only surviving subspecies; Empetrichthys latos pahrump; and Empetrichthys latos concavus.
				
				
			
			
				
					Size / Weight / Age
				
				
				
					Maturity: Lm ?  range ? - ? cm
 Max length : 6.0 cm TL male/unsexed; (Ref. 86798)				
				 
			
			
			
			
			
			
			
			
				Inhabits warm springs about 25°C springs, usually in deep holes (Ref. 86798).  Not a seasonal killifish (Ref. 27139).			
			 
			
			
			
				
					Life cycle and mating behavior					
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
				
				
				
								
				
			
			 
				
				
				
					Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
				
				 
			
			
			
							
					
						IUCN Red List Status   (Ref. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
Tools
				
			
			
			
				
Special reports
 
				
			
			
			
				
Download XML
				
			
			
			
				
					Internet sources
				
				
			
			
			
				
					Estimates based on models				
				
				
				
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.7500   [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):  2.1   ±0.1 se; based on size and trophs of closest relatives					
											
				
				
									
					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (10 of 100). 
🛈