Killi
ENCYCLOQUARIA . SCIENCE
The Art and Science of Aquaria
Other Families
Minor Families of Fishes








Channidae

Snakeheads



Elassomatidae
Elassomatidae Elassoma

Pygmy Sunfish

It was thought the banded pygmy sunfish belonged to the cichlid family but, researchers Jordan, Hay, and Gilbert felt the banded pygmy sunfish was actually an intermediate between the pirate perch and the Centrarchid family of sun fishes. Thus, the pygmy sun fish were placed in their own Family: Elassomatidae.


Eleotridae
Eleotridae Eleotrinae

Sleeper Gobies








Indostomas

Paradox fish


Lebiasinidae
Lebiasinidae Lebiasininae
Lebiasinidae Pyrrhulininae

Pencilfish


Pencil fish, splashing "tetras" (not tetras) and related fishes.



Mormyridae

Whales and Elephants


One of the most evolved and intelligent of fishes, all possess an electrical system used to at the very least serve as an addition sense. All are on different frequencies so the possibility exists they communication with some sort of fish wifi.

If you were intelligent and had something like this how cold you not use it for at least some soft of communication? This might explain the different frequencies?



Pantodontidae
Pantodontidae Pantodon

Butterfly fish


Percidae
Percidae Denariusa
Percidae Etheostomatinae

Perches

Perch and perch-like fish.











cave
cave Amblyopsis cave Astynax cave Barbatula
cave Iranocypris cave Phreatichthys cave Prietella cave Typhlichthys

Blind fish

In several places around the world fish have evolved cit off from all light for a very long time. Although not necessarily related to each other there are grouped here instead out of ichthyological curiosity.

Oliver Lucanus wrote a good article about these fish here.