Xiphophorus
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Other Identifiers
- Comp. aquarium encyc. tropical freshwater fish:p. 310 (genus Xiphophorus includes Swordtail and Platy species ... Originally there were two distinct genera, Xiphophorus and Platypoecilus ... At first, after the two genera were combined, Platypoecilus was retained as the name of a sub-genus but this has now been discarded and all species are now within the one main genus Xiphophorus ... species recognised as belonging to three separate groups: The Helleri group ... 2. The Montezumae group ... 3. The Maculatus group)
- 91-198626: Axelrod, H.R. Swordtails and platies, c1991:p. 9 (At the time of the provisional revision by Rosen, 1979, the genus Xiphophorus Heckel, 1848, popularly known as swordtails and platies, included fifteen species ... The genus Xiphophorus consists of species with and without swords ... The previously independent genus Platypoecilus Günther, 1866, was made up of swordless fishes ... This genus was synonymized by Rosen in 1960 and its members were then classified in the genus Xiphophorus ... In discussions of the species of the genus Xiphophorus one can therefore speak of Xiphophorus without swords and Xiphophorus with swords.)
- Web. 3(Xiphophorus a genus of topminnows (family Poeciliidae) comprising swordtails)
Wikipedia description:
Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. Xiphophorus species can be divided into three groups based on their evolutionary relationships: platyfish (or platies), northern swordtails, and southern swordtails. Platyfish formerly were classified in another genus, Platypoecilus, 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. 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.
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