Synthliboramphus is a small genus of seabirds in the auk family from the North Pacific. The genus name Synthliboramphus is from Ancient Greek sunthlibo, "to compress", and rhamphos, "bill". "Murrelet" is a diminutive of "murre", a word of uncertain origins, but which may imitate the call of the common guillemot. The genus contains five species: \n* Guadalupe murrelet, Synthliboramphus hypoleucus \n* Scripps's murrelet, Synthliboramphus scrippsi \n* Craveri's murrelet, Synthliboramphus craveri \n* Ancient murrelet, Synthliboramphus antiquus \n* Japanese murrelet, Synthliboramphus wumizusume