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.
... until his retirement in 1999 (he remains active within the nonviolence movement and regularly participates in WRL activities).
After years of internal problems, ...