Cyprinodon arcuatus
Santa Cruz Pupfish
NS
GX
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Cyprinodontiformes
Cyprinodontidae (Pupfishes)
Cyprinodon
Cyprinodon arcuatus (Santa Cruz Pupfish)
Description
This species account was compiled from
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Characters
Body shape: Elongated. Distinct dorsal-body surface, which is highly convex before the dorsal fin but changing abruptly at the dorsal origin into a deep, postdorsal concavity most developed in breeding males; absence in nuptial males of distinctive yellow or orange pigment on either the caudal fin or peduncle; weak development of lepidodonts and modally six preopercular pores (Ref. 43452).
Distribution
North America: restricted to the upper Santa Cruz basin in southern Arizona and Northern Sonora.
Habitat Associations
Freshwater. benthopelagic.
Biology
Max length: 4.6 cm SL.
Reproductive mode: dioecism; fertilization: external; nonguarders; parental care: none.
IUCN Red List Status: Extinct (EX), assessed 2011-11-18.
References
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
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.
Comments On Cyprinodon arcuatus