Actinopteri (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Cyprinodontidae
(Pupfishes) > Cyprinodontinae
Etymology: Cyprinodon: Latin, cyprinus = carp + Greek, odous = teeth (Ref. 45335); bobmilleri: Named for Robert (Bob) R. Miller.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic; depth range 0 - 1 m (Ref. 38030). Subtropical; 32°C - 34°C (Ref. 38030)
North America: known only from the type locality, Baño de San Ignacio, Linares, Nuevo Leon, Mexico, on the San Fernando basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL male/unsexed; (Ref. 38030); 3.3 cm SL (female)
Morphology | Morphometrics
soft rays: 11 - 12. In both sexes, specially in females, are peculiar combination of speckled and barred sides, Body shape rhombic; snout acute. Dorsal fin of female overlaid by melanophores, with 2 - 3 distal and 2 - 3 basal spots, parallel to body, seldom with hints of posterior ocellus as seen in pupfishes. Pectoral fins reach middle of dorsal fin base when depressed; cover most of the pelvic length. Male anal fin is pointed, nearly reaching caudal base; caudal band narrower than eye. Mouth slightly higher on profile than in C. variegatus complex. Caudal peduncle short, 20.7 - 25.9% SL (Ref. 39345).
Collected from a spring with some complex slow currents; clear water which is easily roiled. Bottom is ooze, bubbling with odorous gases (sulphurous), and no vegetation except some algae (Ref. 38030).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lozano-Vilano, M.D.L. and S. Contreras-Balderas, 1999. Cyprinodon bobmilleri: new species of pupfish from Nuevo León, México (Pisces: Cyprinodontidae). Copeia 1999(2):382-387. (Ref. 38030)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 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
): 2.7 ±0.2 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .