swordtail - meaning and definition. What is swordtail
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What (who) is swordtail - definition

GENUS OF FISHES
Xiphophorous; Swordtail
  • The [[Monterrey platyfish]] is one of three ''Xiphophorus'' species that is restricted to the southern [[Rio Grande]] basin and threatened
  • Despite its common name, the [[marbled swordtail]] is part of the platy group based on its genetics
  • One of the typical captive forms of the [[variable platyfish]]
  • Montezuma swordtail]] have the proportionally longest tail "sword" among the swordtails, but as in all species the females lack it

Swordtail         
·noun The Limulus.
II. Swordtail ·noun Any hemipterous insect of the genus Uroxiphus, found upon forest trees.
swordtail         
¦ noun a Central American freshwater fish popular in aquaria, the male of which has a tail with an elongated and brightly marked lower edge. [Xiphophorus helleri.]
Graphium aristeus         
  • Males and female (below) of ''G. a. anticrates''
SPECIES OF INSECT
Pathysa aristeus anticrates; Chain Swordtail; Five-barred Swordtail; Chain swordtail
Graphium aristeus, the chain swordtail, is a butterfly in the family Papilionidae (swallowtails). It is found in the Indomalayan and Australasian realms.

Wikipedia

Xiphophorus

Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. The many Xiphophorus species are all known as platyfish (or platies) and swordtails. Platyfish formerly were classified in another genus, Platypoecilia, which is now obsolete. The type species is X. hellerii, the green swordtail. Like most other new world Poeciliids, platies and swordtails are live-bearers that use internal fertilization and give birth to live young instead of laying eggs like the bulk of the world's fishes. The name Xiphophorus derives from the Greek words ξίφος (dagger) and φόρος (bearer), referring to the gonopodium on the males. All are relatively small fishes, which reach a maximum length of 3.5–16 cm (1.4–6.3 in) depending on the exact species involved.

Examples of use of swordtail
1. "While our study focused on green swordtail fish, it seems unlikely that this attribute is limited to this one species," he added.
2. Scientists at the Universities of Exeter and Glasgow have found that female green swordtail fish mature more rapidly if they spot a male with a big tail.
3. Green swordtail fish, a native of North and Central America, are named after the striking growth of the male‘s tail–fin which makes them look bigger and therefore more attractive to females which do not develop the sword–shaped tail fin.