Cyprinodon longidorsalis
La Palma Pupfish
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Cyprinodontiformes
Cyprinodontidae (Pupfishes)
Cyprinodon
Cyprinodon longidorsalis (La Palma Pupfish)
Description
This species account was compiled from
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Characters
Body shape: fusiform / normal. This species is unique in having the following characters: a long depressed dorsal reaching posteriorly from 3/4 of the length of caudal peduncle to caudal base; dorsal origin in front of pelvic fin; 0-2 teeth on fourth ceratobranchial; lips as thick or thicker than pupil diameter, lower one wide with a marked fold in the cleft; males golden blue from head to body, with 7-8 bars, the first 3-4 only on dorsum, the others to venter; females with central regular ocellus of dorsal fin larger than pupil (Ref. 26729).
Distribution
Central America: Mexico.
Habitat Associations
Freshwater. benthopelagic.
Biology
Area of collection, Charco La Palma, during spring has water temperature of 21°C, clear with muddy bottom easily roiled; algae predominant, with some submerged terrestrials, and formerly with swampy outlet that extended 2-3 m 'downstream' SE, is now dry (Ref. 26729). Not a seasonal killifish and difficult to maintain in aquarium (Ref. 27139).
Max length: 5.1 cm SL.
Reproductive mode: dioecism; fertilization: external; nonguarders; parental care: none.
IUCN Red List Status: EW (EW), assessed 2018-09-27.
Commercial or Environmental Importance
Fisheries: commercial; aquarium: commercial.
References
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Riehl, R. and H.A. Baensch (1991) Aquarien Atlas. Band. 1. Melle: Mergus, Verlag für Natur-und Heimtierkunde, Germany. 992 p.
Lozano-Vilano, M. de L. and S. Conteras-Balderas (1993) Four new species of Cyprinodon from southern Nuevo León, Mexico, with a key to the C. eximius complex (Teleostei: Cyprinodontidae). Ichthyol. Explor. Freshwat. 4(4):295-308.
Comments On Cyprinodon longidorsalis