Grunion classified in the family Atherinopsidae along with other New World silversides including the jacksmelt and topsmelt. The California grunion, "L. tenuis", is found along the Pacific Coast from Point Conception, California, to Punta Abreojos, Baja California Sur. They are rarely found between San Francisco in the north and San Juanico Bay, Baja California Sur, in the south. The Gulf grunion, "L. sardina", is found along the coast of Baja California in the Gulf of California. Inhabiting the nearshore waters from the surf to a depth of , marking experiments indicate they are not migratory. They are small, slender fish with
Bucca (mythological creature) in Cornish tin mines, granting wishes in exchange for food (see knockers). Bucca (mythological creature) Bucca is a male sea-spirit in Cornish folklore - a merman- that inhabited mines and coastal communities as a hobgoblin during storms. The mythological creature is a type of water spirit likely related to the Púca from Irish and Welsh folklore and the female mari-morgans - a type of mermaid from Welsh and Breton mythology. Rev W. S. Lach-Szyrma, one 19th-century writer on Cornish antiquities, suggested the Bucca had originally been an ancient pagan deity of the sea such as Irish Nechtan or British Nodens,