Allfishes
Black Molly
Poecilia sphenops
The Black Molly has an elongated body. Females tend to be more rounded in appearance. The …
Freshwater
Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.
Way of eating
Threat to people
Conservation status
Family
- Salmonidae 41
- Cyprinidae 23
- Centrarchidae 19
- Ictaluridae 11
- Clupeidae 9
- Cichlidae 8
- Percidae 8
- Acipenseridae 7
- Catostomidae 6
- Esocidae 6
- Poeciliidae 6
- Lepisosteidae 5
- Leuciscidae 5
- Moronidae 5
- Osphronemidae 5
- Gasterosteidae 4
- Lebiasinidae 4
- Callichthyidae 3
- Mormyridae 3
- Petromyzontidae 3
- Serrasalmidae 3
- Tetraodontidae 3
- Xenocyprididae 3
- Acestrorhamphidae 2
- Acheilognathidae 2
- Anguillidae 2
- Bagridae 2
- Centropomidae 2
- Channidae 2
- Cobitidae 2
- Danionidae 2
- Gymnotidae 2
- Hiodontidae 2
- Protopteridae 2
- Rivulidae 2
- Sciaenidae 2
- Toxotidae 2
- Alestidae 1
- Amiidae 1
- Anabantidae 1
- Anablepidae 1
- Anostomidae 1
- Arapaimidae 1
- Carcharhinidae 1
- Centrachidae 1
- Characidae 1
- Cottidae 1
- Cyprinodontidae 1
- Dasyatidae 1
- Elopidae 1
- Gobionidae 1
- Gymnarchidae 1
- Gyrinocheilidae 1
- Heteropneustidae 1
- Loricariidae 1
- Lotidae 1
- Malapteruridae 1
- Megalopidae 1
- Mochokidae 1
- Mugilidae 1
- Notopteridae 1
- Osmeridae 1
- Osteoglossiformes 1
- Osteolepididae 1
- Percopsidae 1
- Polycentridae 1
- Polyodontidae 1
- Pristidae 1
- Serranidae 1
- Siluridae 1
- Trichomycteridae 1
- Zenarchopteridae 1
Order
Class
Phylum
Showing 1–6 of 6
Eastern mosquitofish
Gambusia holbrooki
The body of the Eastern mosquitofish is moderately elongated, not tall, and laterally compressed. It is …
Green swordtail
Xiphophorus hellerii
Green swordtails have elongated, narrow bodies that are flattened on the sides. They also have large …
Guppy
Poecilia reticulata
Guppies exhibit pronounced sexual dimorphism, with males and females differing in size, shape, and colouration. Males …
Least killifish
Heterandria formosa
Least killifish differ little in body shape from their closest relatives, the Poecilia. They have an …
Mosquitofish
Gambusia affinis affinis
The male anal fin is modified and is an intermittent organ for introducing sperm into the …