1887.] NATURAL SCIENCES OF PHILADELPHIA. 139 



10 ; Gen. Moll., ii, p. 243. Pfeiffer, Syn. Auric, no. 30 ; Mon. Auric, 

 i, p. 36. Morch, Cat. Yold., p. 38. Mousson, Jour, de Conch., 1869, 

 p. 346. Martens and Langk. Don. Bism., p. 55. Gassies, Faun, 

 Nouv. Culed., p. 62. Pease, Jour, de Conch., 1871, p. 93 ; Proc. 

 Zool. Soc, 1871, p. 477. Paetel, Cat. Conch., p. 114. Schmeltz, Cat. 

 Mus. Godeft:, v, p. 88. Garrett, Proc. Phil. Acad. Nat. Sci., 1879, 

 p. 28 . Jour. Phil. Acad. Nat. Sci., 1881, p. 402. 



Abundant just above high-water mark and ranges from the 

 Gambler Islands to the East Indies. 



This species may be easily recognized by its large size (18 mill.) 

 and uniform luteous color. 



M. fasciatus, Deshayes. 



Auricula fasciata, Deshayes, Encycl. Meth., ii, p. 90; Lam. Hist., 

 viii, p. 337. Kuster, Auric, pi. a, figs. 2, 3. Mousson, Jav. Moll., p. 

 46, pi. 5, figs. 28-29. 



Melampus fasciatus, Beck, lud. Moll., j^. 107. (Tralia) H. and A. 

 Adams, Proc Zool. Soc, 1854, p. ii. Pfeiffer, Syn. Auric, no. 33 ^ 

 Mon, Auric, i, p. 38, Mousson, Jour, de Conch., 1869, p. 348. 

 Pease, Proc. Zool, Soc, 1871, p. 477. Martens and Langk,, Don, 

 Bism,, p, 55, Paetel, Cat, Conch,, p, 114. Schmeltz, Cat, Mus. GodefF., 

 V, p. 88. Garrett, Jour. Phil. Acad. Nat, Sci., 1881, p. 402. 



Conovulus fasciatus, Griffith, Cuv. Anim. King., pi. 27, fig. 

 13. Anton, Verz,, pi, 48. Guerin, Icon. Moll,, pi, 17, pi, 7, fig. 8. 



Tralia (Pira) fasciata, H, and A. Adams, Gen. Moll., ii, p. 240. 



Auricula trifasciata, Kuster, Auric, p. 38, pi. 5, figs. 15-17. 



Melmnpus trifasciatus, Pfeifter, Syn, Aurica., no, 38 ; Mon, Auric, 

 i, p. 43, H. and A. Adams, Gen. Moll,, ii, p, 243, Gassies, Faun. 

 Nouv. Caled,, p, 63, Cox, "Exchange List," p. 33. Brazier, Quar. 

 Jour, Conch,, i, p, 274, 



Auricula monile, Quoy and Gaimard, Voy, AstroL, ii, p, 166, pi. 

 13, figs, 28-33. Potiez and Michaud, Gal. Douai., i, p. 208. Reeve, 

 Conch. Syst., ii, pi, 187, fig, 8, 



Cassidula f monile, M, E, Gray, Figs, Moll. Anim., p. 306, figs. 10- 

 11. (Ex. Q. and G.) 



This, like the preceding species lives just above high-water mark 

 and has the same extensive geographical range. 



It is subject to considerable variation in form, color and fasciation. 

 The type varies from bluish-white to luteous and girdled by four to 

 six narrow chestnut bands. Varieties of a uniform bluish-white, 

 corneous, brownish or orange-brown are not infrequent, as well as 



