Shorefishes of the Greater Caribbean online information system

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Genus: Mollisquama, Shark-pocket, Pocket Sharks, Pocket Shark


All Families:   All Genera:   All Species:

large, blunt head; short conical snout
body tapering
D1 just before pelvics
D1 ~D2
C asymmetric
large gland opens above pectoral base

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MOLLISQUAMA

POCKET SHARKS

Body cylindrical, compressed at rear, tapering to a slender tail base; head large, wide, deeper than body; snout short, bulbous, blunt, conical; eyes elliptical, length 3X height; no nictitating eyelids; large spiracle behind eye; mouth small, opens under snout, lips thick, fringed; teeth in upper and lower jaws different, upper - narrow, needle-like, small, lower - compressed, broader, triangular, larger than upper, with 1 point; 5 medium sized gill slits, last over pectoral base; a large pocket gland opens through a conspicuous slit just above pectoral base; both dorsal fins small, low, rounded, narrow, 1st ~equal to 2nd but 2nd with longer base, without spines; origin of 1st dorsal well behind pectoral, base ends over pelvic origin; origin of second near pelvic rear base; pectorals small, with broadly rounded tips; pelvic fins small, triangular; no anal fin; no pits on upper tail base; keel on tail base present or absent; tail fin asymmetrical, lower lobe 60% length of top lobe, both lobes broad & rounded, a subterminal notch under tip of top lobe; all fins with short filaments along their rear edges.

A genus with one, possibly two species; one in the Greater Caribbean.