FOSSIL SQUALID^ OF THE UNITED STATES. 205 



3. C. ACUTiDENS, Gibbes. PI. xxi. figs. 39 to 44. 



4. C. MORTONi, Gibbes. PI. xxi. fig, 45. 



5. C. LANciFORMis, Gibbcs. PI. xxi. figs. 46 to 51. 



6. C. suLcroENS, Agass. PI. xxi. figs. 52, 53. 



Genus GALEOCERDO, Muller and Henk. 



Sp. 1. G. ADUNcus, Agass. PI, xxv. figs. 54 to 58. 



2. G. LATiDENs, Agass. PI. xxv. figs. 59 to 62. 



3. G. MINOR, Agass. PI. xxv. figs. 63 to 65. 



4. G. EOERTONi, Agass. PL xxv. figs. 66 to 69. 



5. G. PRisTODONTUs, Agass. Pi. xxv. fig. 70. 



6. G. coNTORTUs, Gibbes. PI. xxv. figs. 71 to 74. 



Genus HEMIPRISTIS, Agassiz. 

 Sp. 1. H. SERRA, Agass. PI. xxv. figs. 75 to 85. 



Genus GLYPHIS, Agassiz. 

 Sp. 1. G. suBULATA, Gibbes. PI. xxv. figs. 86, 87. 



Genus SPHYRNA, Raf. ZYG.ENA, Cuv. 



Sp. 1. S. PRiscA, Agassiz. PI. xxv. figs. 88, 89, 90. 



2. S. LATA, Agassiz. PL xxv. figs. 91, 92, 93. 



3. S. DENTICULATA, AgttSS. PL XXV. fig. 94. 



Genus NOTIDANUS, Cuv. 

 Sp. 1. N. PRiMiGENius, Agassiz. PL xxv. fig. 95. 



SMOOTH TEETH. 

 Genus LAMNA, Cuv. 



Sp. 1. L. ELEGANs, Agass. PL xxv. figs. 96 to 102. 



2. L. cuspiDATA, Agass. PL xxv. figs. 103 to 106. 



3. L. coMPRESSA, Agass. PL xxv. figs. 107 to 112. 



4. L. ACUMINATA, AgttSS. PL XXV. figs. 113 to 115. 



5. L. CRASSiDENS, Agass. PL xxvi. figs. 116 to 118. 



6. L. coNTORTiDENS, Agass. PL xxvi. fig. 119, and 119«f. 



7. L. HOPEi, Agass. PL xxvi. fig. 120 to 123. 



8. L. vERTicALis, Agassiz. PL xxvi. figs. 124 to 127. 



9. L. GRACILIS, Agass. PL xxvi. figs. 128 to 130. 



