Comprehensive DescriptionRead full entry
| Common names: smoothhound (English), tiburón (Espanol), musola (Espanol) |
Mustelus lunulatus Jordan & Gilbert, 1882
Elongate, slender body; snout pointed; mouth angular, not long; teeth molariform and asymmetrical, with 1 small blunt point; eyes horizontal ovals, with ventral nictitating membranes; wide between eyes = 4.3-4.9% of TL; nostril length 53-74% of distance between nostrils; spiracle length 0.3-0.8% of TL; upper lip fold notably shorter than lower lip fold; 5 gill slits, last 2 over pectoral fin base; 2 large dorsal fins, second slightly smaller than first; first dorsal with concave rear edge, middle of its base closer to pectoral base than pelvic base; dorsal fins with denticles rear edges; distance between dorsal fins = 18-22% of TL; origin of second dorsal fin well before origin of anal fin; anal fin smaller than and with origin under second dorsal; tail strongly asymmetrical, lower lobe expanded, with strongly concave rear edge; skin denticles on flank are pointed ovals with a single point, and canals along 2/3 of length.
Grey above, white below; no dark rear frayed edges to dorsal, anal and tail fins.
Size: 170 cm.
Habitat: continental shelf, demersal.
Depth: 10-200 m.
Southern California to Peru; the Galapagos and Malpelo.