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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Cyprinodontidae (Pupfishes) > Cyprinodontinae
Etymology: Cyprinodon: Latin, cyprinus = carp + Greek, odous = teeth (Ref. 45335); longidorsalis: Name frm Latin 'longus' meaning long and 'dorsalis' for dorsum, referring to the long dorsal fin; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique; non migrateur. Tropical
Central America: Mexico.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL mâle / non sexé; (Ref. 26729)
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).
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).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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. (Ref. 26729)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; Aquarium: Commercial
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00591 - 0.03081), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 2.6 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
