Viviparous fish

species of fish

species of fish

species of fish

Poeciliidae are a family of freshwater ray-finned fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, molly, platy, and swordtail. The original distribution of the family was the Southeastern United States to north of Río de la Plata, Argentina. Due to release of aquarium specimens and the widespread use of species of the genera Poecilia and Gambusia for mosquito control, though, introduced poeciliids can today be found in all tropical and subtropical areas of the world. In addition, Poecilia and Gambusia specimens have

species of fish

species of requiem shark

species of shark (Triakis semifasciata)

species of fish

Goodeidae is a family of teleost fish endemic to Mexico and some areas of the United States. Many species are known as splitfins. This family contains about 50 species within 18 genera. The family is named after ichthyologist George Brown Goode (1851–1896).

The bonnethead (Sphyrna tiburo), also called a bonnet shark or shovelhead, is the smallest member of the hammerhead shark genus Sphyrna, and part of the family Sphyrnidae. It is an abundant species in the littoral zone of the North Atlantic and the Gulf of Mexico, is the only shark species known to display sexual dimorphism in the morphology of the head, and is one of two shark species known to be omnivorous.

Anablepidae is a family of ray-finned fishes which live in brackish and freshwater habitats from southern Mexico to southern South America. There are three genera with sixteen species: the four-eyed fishes (genus Anableps), the onesided livebearers (genus Jenynsia) and the white-eye, Oxyzygonectes dovii. Fish of this family eat mostly insects and other invertebrates.

The surfperches are a family of viviparous ray-finned fishes, the Embiotocidae. Most species are marine, inhabiting coastal waters from Baja California to Alaska, with a few found in Asian Pacific coasts. The only freshwater species, the tule perch (Hysterocarpus traski), is endemic to California, United States.

species of shark (Leptocharias smithii)

species of fish

Comephorus, known as the golomyankas or Baikal oilfish, are a genus comprising two species of peculiar sculpin fishes endemic to Lake Baikal in Russia. Comephorus is the only genus in the subfamily Comephorinae. Golomyankas are pelagic fishes and the main food source for the Baikal seal.

species of fish

species of fish

species of shark

genus of fishes

family of fishes

taxon

species of fish

species of requiem shark

species of fish

species of fish

species of fish

species of fish

species of fish

species of fish

species of fish

Dermogenys is a genus of viviparous halfbeaks. They are widely distributed in fresh and brackish water in South and Southeast Asia, ranging from India to the Philippines and Greater Sundas. They are all viviparous, producing small clutches of up to 30 fry that closely resemble the adults, except they are much smaller, around in length. Adults are typically around in length, with females being slightly larger than males. Males tend to be more brightly coloured and are well known for being aggressive towards one another. The wrestling halfbeak, D. pusilla, is widely used in Asia as fighting anim

species of fish

thumb|Guppy fry 1 week old Livebearers are fish that retain their eggs inside the body and give birth to live, free-swimming young. They are especially prized by aquarium owners. Among aquarium fish, livebearers are nearly all members of the family Poeciliidae and include: guppy, molly, platy, endler’s and swordtails.

species of fish

species of fish

genus of fishes

species of fish

Nomorhamphus is a southeast Asian genus of viviparous halfbeaks from streams, rivers and lakes in Sulawesi (Indonesia) and the Philippines. They are all viviparous, producing small clutches of around a dozen fry about long at birth. Females are generally larger than the males. In the largest species, such as Nomorhamphus liemi, the females typically reach about in length, whereas the males reach about in length. Males are also more brightly coloured than the females (often having red, black, or blue patches on their fins). Compared with many other halfbeaks, the lower mandible, or beak, is rel

species of fish

species of fish

species of fish in the rockfish family

species of fish

species of fish

species of fish in the rockfish family

species of fish

species of fish