swordtail

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swordtail

an aquarium fish, Xiphophorus spp., a member of the suborder Cyprinodontei.
References in periodicals archive ?
Biology and invasive potential of the introduced swordtail Xiphophorus hellerii Heckel (Poeciliidae) in Western Australia.
Effect of dietary protein level on the reproductive performance of female swordtails Xiphophorus helleri (Poeciliidae).
guppy, swordtails, platies, mollies, neon tetras, discus, angelfishes) or research (medaka, zebrafish) purposes.
Both the guppies and the black mollies are closely related to the swordtails, platys and mosquito fish.
Such standard ornamentals as guppies and swordtails, both native to Central America, can now be found in tropical ponds and streams all over the world, especially near cities.
In one group of swordtails, including Xiphophorus helleri, males possess colored extensions of the caudal fin (swords) which attract females (Basolo 1990).
Alternative" mating behavior in the swordtails Xiphophorus nigresis and Xiphophorus pygmaeus (Pisces: Poeciliidae).
Cummings and her colleagues discovered that male Xiphophorus nigrensis swordtails sport sexy, UV-reflecting stripes.
The intent of this study is to perform immune analyses via white blood cell counts from the peripheral blood and spleen of Green Swordtails, Xiphophorus helleri, following an immune initiation, along with parasite level counts of Dactylogyrus intermedius as a means of measuring male fitness.
Swordtails were likely introduced into the San Antonio River during the mid-1980s as none had been obtained prior to that time (Howells 1992).