A medium-sized, very stout shark with a short, broadly rounded snout; eyes are horizontal ovals; front nostrils wide apart, front nasal flaps lobate, not reaching mouth and well separated from each other; long upper lip furrows that reach the lower symphysis of the mouth; teeth semi-molar-like, with straight erect points and side points absent or poorly developed; pectoral fins broadly curved in adults; dorsal fins of similar size; rear margin of 1st dorsal oblique; origin of second dorsal fin well forward of anal fin origin; anal fin smaller than and with origin under middle of second dorsal; tail strongly asymmetrical, lower lobe without point; fins with rounded tips.
Generally light grey becoming white on ventral surface; usually scattered black spots on body, but sometimes plain-colored.
Reaches: 180 cm, possibly 240 cm.
Habitat: probably reefs and soft bottoms.
Depth: 10-200 m?.
Galapagos Archipelago and southern Ecuador to northern Chile.