10 Proceedings Port. Soc. Nat. Mist. 
CHLAMYDOSELACHID®. THE FRILLED SHARKS. 
8. Chlamydoselachus anguineus Garman. 
FRILLED SHARK; “SEA SERPENT”. 
Range.—Deep waters of the open sea. 
Maine.—New Harbor [?] (Hanna, 1883); Pemaquid [?] 
(Goode & Bean, 1896). 
CARCHARINIDE. THe REQUIEM SHARKS. 
4. Careharinus obseurus (Le Sueur). Dusky 
SHARK. 
Range.—Middle Atlantic, frequent on coast of North 
America. 
Matne.—Near Cod Ledge, summer of 1864 ( Willard, 1895). 
VULPECULIDA. Tuer THRESHER SHARKS. 
5. Vulpecula marina Valmont. THRESHER SHARK ; 
THRESHER; “SWINGLETAIL”; “SWINGLETAIL SHARK”; 
“SWIVELTAIL”; “SWIVELTAIL SHARK”. 
Range.—All warm seas, especially Mediterranean and 
Atlantic; frequently taken on Pacific coast. 
MAINngE.—In our bays, one was caught eastward of Matini- 
cus, in 1811, which was supposed to weigh more than 500 
pounds (Williamson, 1832); Eastport (Kendall coll., 1893) ; 
off Monhegan (Kendall coll., 1893 and 18952); Maine (Ken- 
dall, 1908). 
CARCHARIDA®. THE SAND SHARKS. 
6. Carcharias taurus Rafinesque. SAND SHARK; 
“SHOVELNOSE SHARK”; “BLUE Doa”’; LitrTLE MACKEREL 
SHARK. 
Range.—Maine to Cape Hatteras. 
MAINnE.—Maine (Gill, 1873, and Kendall, 1908); coast 
