Xenopterygii \Xe*nop`te*ryg"i*i\, n. pl. [NL., from Gr. xe`nos
strange + ?, dim. of ? a wing.] (Zo["o]l.)
A suborder of fishes including {Gobiesox} and allied genera.
These fishes have soft-rayed fins, and a ventral sucker
supported in front by the pectoral fins. They are destitute
of scales.