E`the*os"to*moid (?), a. [NL. etheostoma name of a genus + -oid.] Zool.
Pertaining to, or like, the genus Etheostoma.
Any fish of the genus Etheostoma and related genera, allied to the perches; -- also called darter. The etheostomoids are small and often bright-colored fishes inhabiting the fresh waters of North America. About seventy species are known. See Darter.
<-- e.g. the snail darter. -->
© Webster 1913.