San Ignacio pupfish
📖 Overview
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 .
🔬 Taxonomy
🐟 Physical Description
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 .
🌀 Behaviour
Behavioural data for San Ignacio pupfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; brackish; benthopelagic; depth range 0 - 1 m . Subtropical; 32°C - 34°C North America: known only from the type locality, Baño de San Ignacio, Linares, Nuevo Leon, Mexico, on the San Fernando basin.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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