230 



M. CRASSILABRUM, Sowb. is M. Icthvosa, Redf. 



M. CRASSILABRUM, Reeve, is 31. Storeria, Couthouy. 



40. M. Cumingiana, Petit, Revue Zool. 1841, p. 185, 1841. 



31. Cumingii, Sowb., Thes. Conch, i, 377, pi. 74, f. 33-35, 



1846. 

 31. Cumingiana, Reeve, Conch. Icon. Marginella pi. 3, f. 8, a, 



b, 1864. 

 31. Cumingii, Kiister, Sjst. Conch. Cab. v, part 4, pi. 1, f. 



13, 1865. Senegal. 



41. M. curta, Sowb., Proc. Lond. Zool. Soc. 1832, p. 105, 1832. 



Kieiier, Coq. Viv. p. 12, pi. 7, f. 30, 1834. Desh., ed. 

 Lam. sans Vert, x, 448, 1844. Sowb. Thes. Conch, i, 

 397, pi. 77, f. 88, 89, 1846. Reeve, Conch. Icon. Mar- 

 ginella pi. 6, f, 23, ;i, b, 1864. Kiister, Syst. Conch. 

 Cab. V, part 4, pi. 2* f. 12-14, 1865. 



Coast of Peru and Ecuador. 



M. CYLiNDRiCA, BroAvn, ( I^oZyan'rt) is Bulla cylindracea, 

 Pennant. 



42. M. cylindrica, Sowb. Thes. Conch, i, 390, pi. 76, f. 134, 



1846. 

 Reeve, Conch. Icon. Marginella pi. 20, f. 105, a, b, 1865. 



I. St. Thomas, W. I. 

 M. CYLINDRICA, Pease, is 31. Peasii, Reeve. 

 M. CYPR^oiDES, Anton, Verzeichness p. 99 is doubtful, and 



perhaps an Erato. 

 M. CYPRyEOLA, Sowb., is Erato scabriuseula, Gray. 



43. M. cystiscus, Redf. 



Ci/stiscus CajJensis,* Stimpson, Am. Journ. Conch, i, 55, pi. 

 8, f. 2, a, b, c, d, 1865. C. of Good Hope. 



44. M. dactylus, Lam., Anim. sans Vert. 1st ed. vii, 360, 



1822. 

 31. dactgla, Defrance, Diet, des Sci. Nat. xxix, 143, 1823. 

 31. dactijlus, Kiener, Coq. Viv. p. 28, pi. 4, f. 16, 1834. 



Desh., ed. Anim. sans Vert, x, 442, 1844. Sowb. Thes. 



Conch, i, 401, pi. 78, f. 187, 1846. Chenu, Manuel de 



Conchyl. i, 199, f. 1054, 1859. Reeve, Conch. Icon. 



Marginella pi. 10, f. 42, a, b, 1865. Hong Kong (Hinds). 



*This species has a shell so entirely that of a Marginella that I could 

 hardly be justified in omitting it from a catalegue of this family. Yet 

 Mr. Stimpson sees sufficient peculiarities in the soft parts of the animal 

 to lead him to establish for it not only a new genus but a new family. 

 Further investigation may confirm his view, and may also show that other 

 minute species, now included in Marginella, should be placed in Cystiscus. 



