218 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Family XIV. CARCHARIIDiE. The Sand Sharks. 



Genus 31. CAECHAEIAS Rafinesque. 



Carcharias Ralinesque, Caratteri di Alcuni Niiovi Generi. 10, 1810 (taurua). 



Subgenus EUGOMPHODUS Gill. 



Eugomphodus Gill, Proc. Ac. Nat. Sci. Phila. 1864, 260 (littoralis). 



64. Carcharias littoralis (Mitchill). Sand Shark. 



Atlantic Coast between Cape Cod and Cape Hatteras. 



Squalus littoralis Mitchill, Am. Monthly Mag., ii, 1818, 328, Xew York. 



Family XV. LAMNIDiE. The Mackerel Sharks. 



Genus 32. ISURUS Eafinesque. 



Isui-us Rafinesque, Caratteri di Alcuni Nuovi Generi, 11, 1810 {oxyrhynchua). 



Subgenus ISCBOPSIS Gill. 



Isuropsis Gill, xVnn. Lye. Nat. Hist. N. Y., vii, 1862, 409 (dekayi). 



65. Isurus dekayi (Gill). Mackerel Shark. 



Cape Cod to "West Indies. 



Isuropsia dekayi Gill, Ann. Lye. N. Y., vii, 1862, 409; after DeKay. 



Subgenus ISDBUS Rafinesque. 



66. Isurus oxyrhynchus Rafinesque. Mackerel Shark ; Peace Tondo ; Cane di Mare. 



Mediterranean and neighboring parts of the Atlantic; occasional on Atlantic 



coast of North America. 

 laurus oxyrhynchus Rafinesque, Caratteri, etc., 12, 1810, Palermo 



Genus 33. LAMNA Cuvier. Porbeagles. 

 Lamna Cuvier, Regne Animal, ed. i, 126, 1817 (cornubiciis). 



67. Lamna cornubica (Gmelin). Porbeagle; Mackerel Shark. 



North Atlantic and North Pacific. 



Squalus cornubicus Gmelin, Syst. Nat., i, 1497, 1788, shores of Cornwall. 



Genus 34. CAECHARODON Smith. Man-eater Sharks. 



Carcharodon Andrew Smith, Proc. Geol. Soc. Loud., v, 86, 1837 (capensis ^= 

 carcharias). 



68. Carcharodon carcharias (Linufeus). Man-eater Shark; Great White Shark. 



Temperate and tropical parts of the Atlantic and the Pacific. 

 Squalus carcharias Linnseus, Syst. Nat., ed. x, 235, 1758, Europe. 



FamUy XVI. CETORHINID^. The Basking Sharks. 



Genus 35. CETORHINUS Blainville. 



Cetorhinua Blainville, Journ. Phys. 1816, 264 (gunneri^maximus) . 



69. Cetorhinus maximus (Gunner). Basking Shark; Pelerin; Elephant Shark. 



Arctic seas, Portugal, Virginia, and California. 



Squalus maximus Guuner, Trondhjeiu Selskabskr., iii, 33, 1765, coast of Norway. 



Family XVII. RHINODONTIDiE. The Whale Sharks. 



Genus 36. MICRISTODUS Gill. 

 Micristodus Gill, Proc. Ac. Nat. Sci. Phila. 1865, 177 {punctatua). 



70. Micristodus punctatus Gill. 



Gulf of California. 



Micristodus punctatus Gill, Proc. Ac. Nat. Sci. Phila. 1865, 177, Gulf of Cali- 

 fornia. 



