Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Cyprinodontidae (Pupfishes) > Cyprinodontinae
Etymology: Cyprinodon: Latin, cyprinus = carp + Greek, odous = teeth (Ref. 45335); pisteri: Named for Edwin P. Pister..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
North America: restricted to the Lago de Guzmán basin of northern Chihuahua in Mexico and possibly southwestern New Mexico, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm SL male/unsexed; (Ref. 43452); 4.9 cm (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 8 - 11; Anal soft rays: 9 - 11; Vertebrae: 25 - 27. In breeding males dorsal fin dusky to black, not yellow or orange; band on caudal fin narrow (narrower that eye-diameter) and often diffuse or absent; first dorsal fin ray thickened and spikelike; ocellus usually well developed in dorsal fin of females, no anal fin ocellus; breast fully scaled; modally 10 dorsal and anal fin rays; 7 pelvic fin rays, 25-28 (mode 26) scales in lateral line and modally 26 vertebrae (Ref. 43452).
Occurs in springs, ciénegas, shorelines and cutoff channels of rivers and creeks, even colonizing ephemeral canals and ditches along roadsides (Ref. 43452). Distinct pairing during breeding. (Ref. 205). Demersal eggs with adhesive threads (Ref. 205).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Distinct pairing (Ref. 205).
Minckley, W.L., R.R. Miller and S.M. Norris, 2002. Three new pupfish species, Cyprinodon (Teleostei, Cyprinodontidae), from Chihuahua, Mexico, and Arizona, USA. Copeia 2002(3):687-705. (Ref. 43452)
IUCN Red List Status (Ref. 130435)
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=0.01000 (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): 2.6 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).