OF THE UNITED STATES. 31 
a 2 Pl. xi. fig. 1. With an entire edge, and an appen- 
dage at each basil margin. Arenaceous beds of New 
Jersey. f 
SLE ed Pl. xi. fig. 2. Lanceolate, curved, longitudinally 
striated. New Jersey and Alabama. 
Sie aah Pl. xi. fig. 3. Lanceolate, curved, smooth, with late- 
ral basal appendages. New Jersey and South Caro- 
lina. 
Nee Pl. xi. fig. 4. With serrated edges. 
Bie el 5 | P]. xi. fig. 5. With entire edges, and basal appen- 
dages. New Jersey. Probably allied to 8. zygena. 
S. Cuvieri? Pl. xi. fig. 6. See Mantell’s Geology of the South 
Kast of England, p. 132. A similar tooth is re- 
ferred to S. mustilus, by Parkinson, Org. Rem. 
vol. ui. pl. xix. fig. 3. 
“a ee Pl. xi. fig. 11. Curved, with a basal appendage. 
New Jersey. | 
ae Pi. xii. fig. 2. Compare with Parkinson, Org. 
Rem. pl. xix. fig. 11. Found in both the arena- 
ceous and calcareous strata. 
Seay. bbs ke Pl. xi. fig. 3. Lanceolate, with coarsely ser- 
rated edges, and obscure basal appendages. New 
Jersey. | 
Se tens Pl. xii. fig. 4. Curved, with coarse marginal 
serrations, and large, auricular basal appendages. 
New Jersey. 
ey has ats Pl. xii. fig. 5. With serrated edges. New Jer- 
sey. a 
Vertebral bones and teeth of the shark are also represented, 
Pl. 15, fig. 14, and pl. 19, fig. 11 and 13. 
