671 



shells dredged, (A. E. Y.) ; Long Island Sound. Atlantic City, Kew 

 Jersey (Tyrou). Specimens Crom the east and west coasts of Florida; 

 and from near Yera Cruz, Mexico (coll., Mr. Salt), are also in the 

 museum of Yale College. 



ZiRPHJEA. CRISPATA Morch, 1853. (p. 433.) 



H. and A. Adams, Genera, vol. ii,p. 327, Plate 89, figs. 5, 5a, 185S ; Tryon, op. 

 cit., p. 211, 1862. Fliolas erisjyata Lian^, Sjst. Nat., ed. xii, p. 1111, 1767 ; 

 Gould, Invert., ed. i, p. 27. Zirfcua crispaia Gray, Figures of Moll. Anim., 

 Plate 338, fig. 5, and 339, fig. 5, 1857 ; Ann. and Mag. Nat. Hist., ser. ii, vol. 

 viii, p. 385, 1851 ; Gould, Invert., ed. ii, p. 39, fig. 365. 



Stonington, Connecticut, to Gulf of Saint Lawrence ; Iceland; north- 

 ern coasts of Europe, south to France, and the southern coasts of Great 

 Britain ; west coast of North America, south to California. Charles- 

 ton, South Carolina (Stimpson, t. Gould). New Jersey (t. Gould). 

 Wood's Hole, dead shells dredged, (A. E. Y.). Common in Casco Bay, 

 in 10 to 20 fathoms, perforating hard clay and sunken but sound wood ; 

 also in the Bay of Fundy, in 8 to 70 fathoms, in hard clay. Mr. C. B. 

 Fuller has obtained fine large specimens in submerged tree-stumps at 

 extreme low-water mark on Jewell's Island, Casco Bay. Fossil in the 

 Post-Pliocene of Maine, Scandinavia ; and in the Coralline and Eed 

 Crags of Great Britain. Its occurrence at Charleston, South Carolina, 

 needs confirmation. 



Martesia cuneiformis Gray, 1851; Tryon, op. cit., p. 219. Pholas cunei- 

 formis Say, Jour. Acad. Nat. Sci., Philad., vol. ii, p. 322, 1822. 



This species was found by Mr. Perkins in oyster-shells, near New 

 Haven, but it was probably brought from farther south (Maryland or 

 Yirginia) in the oysters. It inhabits the coasts of Florida and the 

 West Indies. 



JDiplotliyra Smithii Tryon, op. cit., p. 450, 1882. 



This species was described from specimens found in oyster-shells at 

 Staten Island, where they were supposed to have lived. If really indig- 

 enous there, it may be expected to occur in Long Island Sound. 



Saxicava arctica Deshays. Plate XXYII, fig. 192. (p. 309.) 



Elem. Conch., Plate xii, figs. 8, 9 (t. Gould) ; Forbes and Hanley, Brit. Moll., vol. 

 i, p. 141, Plate 6, figs. 4-6; Gould, Invert., ed. ii, p. 89, fig. 397. Mya arctica 

 Liun6, Syst. Nat., ed. xii, p. 1113, 1767. Mytiliis rugosm Linn 6, Syst. Nat., 

 ed. xii, p. 11.56. Saxicava rw^osa Lamarck, Anim. sans Vert., ed. ii, vol. vi, p, 

 152; Gould, Invert., ed. ii, p. 87 ; Jeffreys, Brit. Conch., vol. iii, p. 81. Mytilus 

 pholadis Linn^, Mant. Plant., p. 548. Saxicava plioladis Lamarck, op. cit., vol, 

 vi, p. 152. (?) Saxicava distortaSsiy, Jour. Acad. Nat. Sci., Philad., vol. ii, p. 318, 

 1822; Gould, ed. i, p. 62. 



Georgia and South Carolina to the Arctic Ocean ; northern coasts of 

 Europe to the Mediterranean : Pacific Coast of America, south to Santa 

 Barbara, Cal ifornia. Yarious other parts of the world are given as locali- 

 ties by different authors. On our coast this shell is very common from 

 Massachusetts Bay to Labrador, occurring from low-water mark to 50 



