Scientific name: 
Rhacochilus vacca
Distinctive features: 
1. Dusky to dark bar below front portion of soft dorsal fin. 2. Black spot behind corner of mouth.
Size: 
6-14 in. max. 17 1/4 in.

Thin-bodied; football-shaped profile. Silvery gray, occasionally brownish. Deeply forked tail. Common central California to B.C.