swordtail

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swordtail

an aquarium fish, Xiphophorus spp., a member of the suborder Cyprinodontei.
References in periodicals archive ?
niloticus), one was accidentally introduced as an ornamental fish (convict cichlid Amatitlania nigrofasciata), and three had been translocated to the reserve (mesa silverside Menidia jordani, porthole livebearer Poeciliopsis gracilis, and green swordtail Xiphophorus hellerii).
In a rare demonstration of secret messaging in animals, a swordtail fish uses ultraviolet (UV) wavelengths as a private courtship channel, biologists now report.
Basolo (1990) used parsimony to reconstruct ancestral states for male swords and female preference for male swords onto a preliminary phylogeny for swordtails and platies.
Biology and invasive potential of the introduced swordtail Xiphophorus hellerii Heckel (Poeciliidae) in Western Australia.
Effect of varying dietary lipid and protein levels on growth and reproductive performance of female swordtails Xiphophorus helleri (Poeciliidae).
Although this trait is not seen in normal female swordtail fish, many previous studies have reported female swordtails being transformed into phenotypic male fish by the administration of male sex hormones.
Common colors for swordtails include reds and oranges.
Many other fishes kept as ornamentals such as swordtails and platies, discus and angelfishes, as well as those cultured for food such as rainbow trout, channel catfish and sturgeon are merely exploited captives.
However, other fish species, such as swordtails and guppies, do depend on chromosomes to determine sex.
PARASITE-MEDIATED SEXUAL SELECTION OF GREEN SWORDTAILS, XIPHOPHORUS HELLERI
Both the guppies and the black mollies are closely related to the swordtails, platys and mosquito fish.