PISCES. 7 



SELACHII. ASTEROSPONDYLI. 



LAMNIDAE. 



11. ISURUS DEKAYI (Gill). 



Mackerel shark. 



Jordan & Evermann, Bull. 47, U. S. nat. mus., 1896, pt. 1, p. 

 48, 1900; pt. 4, pi. 6, fig. 21. 



Isuropsis dekayi Gill, Ann. lye. nat. hist. N. Y., 1861, vol. 7, 

 p. 409. 



Lamna punctata Mitchill. Storer, Report, 1839, p. 185, pi. 3, 

 fig. 2. 



Me.— Casco Bay (U. S. Nat. Mus. 1873). 



Mass.— "In our bay" (Storer 1839); Marshfield (Storer 1839); 

 Woods Hole (Baird 1873); Vineyard Sound ; Buzzards Bay (Smith 

 1898); Nantucket (Sharp & Fowler 1904). 



R. I.^ Tiverton; Point Judith (U. S. nat. mus. 1887); Narra- 

 gansett Bay (R. I. Fish comm. 1899). 



Conn. — Oyster River; Stratford (Linsley 1844). 



12. Lamna cornubica (Gmelin). 

 Mackerel shark; Blue shark. 



Jordan & Evermann, Bull. 47, U. S. nat. mus., 1896, pt. 1, p. 49; 

 1900, pt. 4, pi. 6, fig. 22. 



Squalus cornubicus Gmelin, Syst. nat., 1788, vol. 1, p. 1497. 

 "Shores of Cornwall." 



Lamna punctata Mitchill. Storer, Mem. Amer. acad., 1867, 

 vol. 9, p. 225, pi. 37, fig. 1. 



Me.— Off Monhegan (Storer 1867; Kendall coll. 1895); Casco 

 Bay (Bowdoin College); off Cape Elizabeth (Norton coll. 1905). 



Mass.— Provincetown (Storer 1867); off Gloucester (Goode & 

 Bean 1879). 



R. I.— (Tracy 1906). 



13. Carcharodon carcharias (Linne). 

 Maneater; Great white shark. 



Jordan & Evermann, Bull. 47, U. S. nat. mus. 1896, pt. 1, p. 50. 



