Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Cyprinodontidae
(Pupfishes) > Cyprinodontinae
Etymology: Cyprinodon: Latin, cyprinus = carp + Greek, odous = teeth (Ref. 45335); variegatus: From the words Cyprinus=a genus of minnows and odious (stem odont)=tooth, meaning minnows with teeth; variegates Latin for variegated, variously colored (Ref. 79012).
Environment / Climate / Range
Marine; freshwater; brackish; benthopelagic; non-migratory. Subtropical; -2°C - 42°C (Ref. 35682), preferred ?; 45°N - 0°N, 98°W - 49°W
North and South America: Massachusetts, USA to northeastern Mexico; and West Indies (Ref. 86798); northern coast of South America (Ref. 5217).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm TL male/unsexed; (Ref. 27139); common length : 3.0 cm TL male/unsexed; (Ref. 5217)
A short, deep-bodied, compressed fish. Scales large, dorsal profile straight from tip of snout to front of dorsal fin; dark marginal band on tail (Ref. 26938).
Occurs usually near vegetation in salt, brackish and fresh water (Ref. 86798). Inhabits hypersaline lagoons and connecting channels. Found on muddy bottoms in turbid waters (Ref. 5217). Omnivorous; consuming organic detritus and algae, as well as microcrustaceans, and dipteran larvae (Ref. 79012). Caught with fine-meshed nets. Very abundant and easily reproduced in captivity. Used as a forage fish in mariculture (Ref. 5217). Not a seasonal killifish. Is easy to maintain in the aquarium (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. 109396)
CITES (Ref. 94142)
Threat to humans
Aquarium: commercial; bait: usually
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm<1 and Fec<1000).
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .