ECHENEIS, in ichthyology, a genus belonging to the order of thoracici. The head is fat, naked, depressed, and marked with a number of transverse ridges; it has ten rays in the branchiostegal membrane; and the body is naked. There are two species, viz. 1. The remora, or sucking-fish, with a forked tail, and 18 striae on the head. It is found in the Indian ocean. 2. The neucrates, with an undivided tail, and 24 striae on the head. It is likewise a native of the Indian ocean. See Plate CII.