blenniiformes

from The Century Dictionary.

• In Günther's classification of fishes, a division of Acanthopterygii, having the body low, subcylindrical or compressed, and elongate (rarely oblong); the dorsal fin long; the spinous portion of the dorsal, if distinct, very long, as well developed as the soft portion, or more so; the whole fin sometimes composed of spines only; the anal more or less lengthened; the caudal subtruncate or rounded, and the ventrals thoracic or jugular, if present.