xiphidion

from The Century Dictionary.

• noun In entomology, a genus of orthopterous insects, of the family Locustidæ, synonymous in part with Orchelimum.
• noun In ichthyology, a genus of blennioid fishes: so called by Girard in 1859. Being preoccupied in entomology, the name has been changed to Xiphister (which see).