- n Cepphus a genus of birds including: guillemots
Century Dictionary and Cyclopedia
- n cepphus In ornith.: A genus of diving birds, the loons: synonymous with Colymbus or Urinator. Moehring, 1752. A genus of Alcidæ founded by P. S. Pallas in 1769, now commonly called Uria; the black guillemots. There are several species, inhabiting the North Atlantic, North Pacific, and Arctic oceans. The common black guillemot is C. grylle; the pigeon-guillemot is C. columba; the sooty guillemot is C. carbo.