Illustrated Specimen: 292 mm; grows to 1100 mm.
Identifying Characters: A small gray shark with nasal flaps, third eyelid, spiracle, labial grooves, anal fin and no dorsal spine; the second dorsal fin is one-half or more the size of the first dorsal fin; teeth are blunt and small, grinding plates.
Related Species: Might be confused with the Brown Smoothhound, Triakis henlei, which has small points on the teeth.
Coloration: Back bluish-gray becoming white on lower one-third of side; belly creamy white; pectoral fins gray below with white bases; dorsal portion of pectoral fins brown distally becoming dark gray near the body; eye blue with a black vertical pupil; pelvic fins gray distally, creamy becoming gray ventrally; caudal lobes light gray, white medially, second dorsal fin light gray to brown with upper lobe dark gray; anal fin light gray pale edge.
Northern Mexico to Northern California. From Fishes of the Upper Newport Bay (Bane, G.W.). Museum of Systematic Biology, University of California, Irvine.