MANG1LIA. 245 



white, with chestnut, revolving lines, rarely unicolored or 

 unifasciate. Length, 7 mill. 



Mediterranean Sea. 

 M. ALBIDA, Deshayes. PL 32, fig. 32. 



Shell white, very slightly ronnd-shouldered, with about ten 

 longitudinal ribs, and wider interspaces. Length, 6 mill. 



Mediterranean Sea. 



Monterosato considers this a distinct species, but Weinkauff 

 refers it to M. rugulosa. I have not seen specimens. 



M. RUGULOSA, Philippi. PI. 22, fig. 44. 



Shell whitish to yellowish brown, the whorls round-shouldered 

 above, the rude ribs with wider interspaces, crossed by elevated 

 revolving lines, some of them much larger than the rest, and 

 which are sometimes brown. Length, 6 mill. 



Mediterranean Sea England. 



The distinctive character of this species, if it be one, is the 

 series of revolving, minute ridges and striae. M. Stossichiana, 

 Brusina, is a synonym, according to Weinkauff. 



M. COMPANYOI, Bucq., Dautz. et Dollf. PI. 33, fig. 62. 



Whorls convex, subangular above, with strong, distant ribs, 

 surface covered by extremely fine decurrent striae, visible only 

 with the microscope ; yellowish white, with numerous well- 

 marked, regular, darker, revolving lines. Length, 7 mill. 



Roussilon, France. 



I have not seen this species ; apparently it possesses but 

 slight distinctive characters. 



M. SUBCLATHRATA, Maltzan. PI. 30, fig. 87. 



Turreted fusiform, sutures well impressed : ribs eleven, decus- 

 sated, and rendered nodulous by many undulating spiral riblets ; 

 lip thickened, denticulated, sinus small. Length, 6 75 mill. 



Isl. Goree, West Coast of Africa. 



M. STRUCKI, Maltzan. PI. 30, fig. 88. 



Turreted fusiform, with produced spire and deep sutures ; 

 reddish brown;, ribs nine, straight, decussated and rendered 

 nodulous by spiral riblets ; sinus nearly obsolete, lips thickened 

 and dentate. Length, 5'5 mill. 



Isl. Goree, West Coast of Africa. 



