An order of ray-finned fish, also called the Microcyprini, and comprising mostly small, fresh-water fish. They are closely related to the Atheriniformes[?] and are occasionally included with them. Many popular aquarium fish, such as killifish and live-bearers, belong here.
... 2,000; and 1,000 different editions
are preserved in the British Museum. The
Bullingen collection, donated to the city of Cologne in
1838, contained at the time 400 ...