| Cyprinodontidae (Pupfishes), subfamily: Cyprinodontinae |
| 3.48 cm SL (male/unsexed); 3.34 cm SL (female) |
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benthopelagic; freshwater; brackish; depth range 0 - 1 m |
| North America: known only from the type locality, Baño de San Ignacio, Linares, Nuevo Leon, Mexico, on the San Fernando basin. |
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Dorsal soft rays (total): 11-12; Anal 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). |
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Vulnerable (VU); Date assessed: 09 March 2018 (D2) Ref. (130435)
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| harmless |
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