Swordtail

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Swordtail

 

(Xiphophorus helleri), a fish of the family Poeciliidae of the order Cyprinodontidae. It is found in the fresh waters of Mexico and Guatemala. Males are up to 8 cm long, and females 12 cm. The lower part of the male’s caudal fin has the distinctive form of a sword. Swordtails are grayish olive, with a longitudinal red stripe and several shorter reddish bands parallel to it. The females, which are not as brightly colored as the males, are live-bearers. The swordtail is a popular aquarium fish. It hybridizes with the closely related platy (X. maculatus) to form black, red, lemon, mottled red, and other varieties.

REFERENCE

Il’in, M. N. Akvariumnoe rybovodstvo, 2nd ed. Moscow, 1968.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
A) Coluber flagellum piceus; B) Coluber lateralis; C) Crotalus ruber; D) Crotalus oreganus helleri; E) Arizona elegans occidentalis, standard morph (with food bolus at midbody); F) A.
Merging social hierarchies: effects on dominance rank in male green swordtail fish (Xiphophorus helleri).
Genetic variability in five populations of Partamona helleri (Hymenoptera, Apidae) from Minas Gerais State, Brazil.
(2007) working with Bacillus subtilis, in Poecilia reticulate, Poecilia sphenops, Xiphophorus helleri and Xiphophorus maculates, by Dias et al.
chamulae share the habitat with Poecilia mexicana Steindachner, Xiphophorus hellerii Heckel, Heterophallus milleri Radda, Heterandria bimaculata Heckel (all Poeciliidae), Astyanax aeneus G u nther (Characidae), Thorichthys helleri Steindachner, and Vieja bifasciata Steindachner (both Cichlidae) (see also Tobler et al .
cultured Bat species Conguaco Oratorio San Lucas Toliman Artibeus jamaicensis 0/3 0/2 0 Artibeus lituratus 0/1 0/1 0/1 Artibeus toltecus 1/1 0 0 Carollia castanea 0 0 0 Carollia perspicillata 0 0/2 0/3 Desmodus rotundus 5/7 2/4 0/1 Glossophaga soricina 1/1 0/3 1/5 Micronycteris microtis 0 0 0 Myotis elegans 0 0 0 Myotis nigricans 00 0 Phyllostomus discolor 7/8 0 1/1 Platyrrhinus helleri 0 0 0 Pteronotus davyi 0 0 0 Sturnira lilium 1/3 0/5 0/2 Sturnira ludovici 0/1 0 0/1 Total 15/25 2/17 2/14 No.
Chase, Telipogon helleri and Trichocentrum candidum Lindl.
Fourteen adult rattlesnakes were used as subjects (4 Crotalus viridis, 3 Crotalus atrox, 3 Crotalus oreganus, 2 Crotalus helleri, 1 Crotalus horridus, and 1 Crotalus lutosus).