from The Century Dictionary and Cyclopedia
- n. A genus of small silvery fishes of the tropics, of the family of Gerridæ, distinguished by the very large size of the interhemal bone at the base of the second anal spine. E. gula is the commonest species.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a genus of Gerreidae
Sorry, no etymologies found.
Mojarra: tilapia, of which there are twelve different species in Mexico, including the tilapia zillii; the eucinostomus genus, which includes flagfin mojarra; and the diapterus, commonly known as rhomboid mojarra.
That certainly seems to be what’s going on with the fish Copadichromis eucinostomus, which lives in Lake Malawi in central Africa.