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Poecilia sphenops. Poecilia sphenops, called the short-finned molly or common molly, is a poeciliid fish inhabiting freshwater streams, coastal brackish, and marine waters from Mexico to Colombia. The wild-type fishes are dull, silvery in color. The molly can produce fertile hybrids with many Poecilia species, most importantly the sailfin molly.
Other all-female species include the New Mexico whiptail, desert grassland whiptail lizard, and blue-spotted salamander. The Amazon molly reproduces through gynogenesis. This image shows that the genetic material of the male is not incorporated into the offspring of the female. And the daughter cells produced are copies of the mother cell. [7]
Sailfin molly. The sailfin molly (Poecilia latipinna) is a livebearer fish typically found in both freshwater and brackish waterways along the East Coast of the United States, from North Carolina south to Florida, and around the Gulf of Mexico to Texas, and south to the Yucatán Peninsula of México. Given their preference for more brackish ...
Though these measurements place them among the smaller mollies, large specimens are sometimes encountered as well: a 72.7 mm SL female and a 51.9 SL male have been reported. [2] These size variations pertain to distinct populations. [3] The fish vary in color as well, [2] even within the same population. [3]
Poecilia velifera, known as the Yucatan molly and also as the giant sailfin molly amongst aquarists, [3] is a large livebearer that lives in coastal waters of the Yucatan Peninsula. These live-bearer (Poeciliidae) fish are particularly well known for both the extreme size variation among males, and the sexual dimorphism between males and ...
Parapoecilia Hubbs, 1924. Poecilia is a genus of fishes in the family Poeciliidae of the order Cyprinodontiformes. [ 2] These livebearers are native to fresh, brackish and salt water in the Americas, and some species in the genus are euryhaline. A few have adapted to living in waters that contain high levels of toxic hydrogen sulfide ( H.
Poecilia kykesis, also known as the Usumacinta molly, Petén molly, spiketail molly, or swordtail molly, is a poeciliid fish species native to the fresh and brackish waters of Mexico, Guatemala, and Belize. It belongs to the sailfin molly clade, with males exhibiting an enlarged dorsal fin. The species has a notably controversial naming history ...
Poecilia unimaculata (Valenciennes, 1821) [2] Poecilia vivipara, sometimes called the southern molly, is a small euryhaline livebearer fish distributed along the Atlantic coast of South America. It is most frequently found in standing brackish water. It has been introduced outside its native range to control mosquito populations and is ...