392 MK'KOMI 



the species " ninhihttfi l>ru<:.," and because the shell he meant 

 was not the species of Bruguiere. Neither have I followed v. Mar- 

 tens in giving />. a immense as the type of Ferussac's group, because 

 1'Ynissac did not mention that species, and the identification of his 

 *' />'. it,mlnlatn Brug." with (/uamoi.^e is only hypothetical, although 

 extremely probable. Surely if such an identification be sufficient 

 to fix the identity of the genus, it is enough to fix that of the t])e- 

 cies; and v. Martens does not go so far as to call gnamense " wnlu- 

 Inta Fer.," as he would be compelled to do were his view followed 

 to its logical conclusion. 



M. i NDATA Bruguiere. PL 59, figs. 20, 21, 22, 23, 24. 



Shell oval, rather thin, white with two or three equidistant spiral 

 red lines and many deeply sinuous longitudinal red lines. Surface 

 shining,showing under a lens many unequally spaced spiralscomposed 

 of rounded pits just touching each other; this sculpture oftennearly 

 obsolete and hardly visible except at the base. Vertex rather nar- 

 row, the spire nearly level ; first whorl a shining, uptilted, nearly 

 immersed nucleus ; following whorls separated by impressed sutures. 

 Aperture long, pear-shaped, gradually narrowed and curved to the 

 left above, broadly rounded below ; lip receding a trifle at suture. 

 Columella broadly concave, with reflexed, appressed edge. Alt. 

 12*, diam. 8J mill. 



St. Thomas (Swift, Krebs, et al.) ; St. Vincent (Guilding) ; St. 

 Martin (Krebs) ; Cuba (Sagra). 



Bullaundata BRUG., Encycl. Meth., i p. 380. ORB., Moll. Cubai, 

 p. 132. Bullina lonlmt MOROH, Mai. Bl. xxii, p. 174. Bnlltiuiti- 

 dula (Solander, MSS., Portland Catal., undesc.) DILLWYN, Descript. 

 Catal. Recent Shells, i, p. 483. A. AD., Thes. Couch., ii, p. 565, pi. 

 120, f. 15, IQ.Hydatina nitidula SOWB., C. Icon., f. 1 (false local- 

 ity.) Jlnlllna elegans'M.KE., Syn.Meth. Moll. Mus. Menkeano, edit. 

 2, 1830, p. 13 (founded upon Lister's figures). 



The spiral red lines often occupy the middle of an ill-defined 

 reddish band, and frequently the median line is wanting. 



M. (JUAMENsis Quoy & Gaimard. PL 59, figs. 25, 26. 



Shell ovate, pellucid, grooved by several black undulating longi- 

 tudinal lines and three transverse lines. It is covered by a thin 

 extended epidermis, and is -wider in front than behind. The obtuse 

 re-entrant spire describes a little more than two whorls ; the ground 



