FURTHER NOTES ON NEW JERSEY FISHES. 121 
Family CARCHARIIDE. 
Carcharias littoralis (Mitchill). 
Sand Shark. 
Head 5°/,; depth at origin of pectoral probably about 834; 
width of head 1% in its length; depth of head at first gill- 
opening 17¢; snout, measured from tip around to front of eye, 
3%; width of mouth 2% ; interorbital space 3% ; space between 
front of mouth and tip of snout about 1% in its width; front 
margin of first dorsal about 21% in head; front margin of second 
dorsal 274; front margin of anal 334; front margin of lower 
caudal lobe about 214%; least depth of caudal peduncle about 5; 
upper margin of pectoral about 144; front margin of anal about 
234. Body elongate, rather slender, apparently more or less 
cylindrical, depressed anteriorly, with pharynx rather swollen as 
usual, and trunk tapering back from base of pectoral long and 
slender. Edges of body flattened, or convex, without median 
longitudinal groove, and no evidence of a pit at origin of either 
caudal lobe. Caudal peduncle slender, its least depth about equals 
its length. Head rather broad, blunt, depressed, and apparently 
equally convex below and above. Profiles apparently similar. 
Snout rather small, pointed, protruding somewhat, and as viewed 
above rather angularly convergent, with its length about three- 
quarters its width. Eye small, supero-lateral, placed near first 
third in length of head, evidently elongate. Mouth large, length 
of gape about half of its width, and symphysis falls apparently 
about midway in length of snout. Lips firm and tough. At 
angle of each jaw, a fold inside equal to about one-third length 
of each mandibular ramus. ‘Teeth in jaws large, decreasing in 
size towards ricti, where they are short and much smaller, mostly 
tricuspid, with median cusp very long, slender and sharp-edged. 
Some of larger teeth with 3 or 4 basal cusps, as 2 on each side. 
All basal cusps small. Nostrils inferior, lateral, about half-way in 
snout to eye, internasal space about half of interorbital, and 
nasal flaps small. Interorbital space comparatively narrow and 
rather slightly convex. Gill-openings 5, all in front of origin 
