MANGILIA. 255 



M. CASTANBA, Reeve. PI. 23, fig. 84. 



Whorls rounded ; longitudinally ribbed, the interstices wittr 

 close revolving striae; chestnut-brown. Length, 11 mill. 



Isle of Burias, Philippines (Cuming). 



Nearly related to M. livida, but the ribs are straighter, the 

 canal more slopingly produced, and the surface striate. 



M. ROBUSTICOSTATA, Smith. PL 22, fig. 60. 



Whorls turreted, with strongly angular periphery, and short, 

 oblique ribs, about twelve in number; lip thin at edge, but 

 thickened externally by one of the ribs ; sinus scarcely dis- 

 cernible ; yellowish brown, whitish towards the base of the body- 

 whorl and labrum. Length, 6'3 mill. 



Japan. 

 M. SPLENDIDA, A. Adams. PL 22, fig. 55. 



Shell somewhat thin, subpellucid, shining, with longitudinal, 

 obtuse, unequal, rather weak plicae, and somewhat distant spiral 

 lineations ; light brownish, with bands of rather large chestnut 

 maculations ; lip acute, but varicose externally. 



Length, 1 inch. 



Japan. 



One of the largest and most distinct species of the group, 

 though scarcely of typical character. 



M. COPPINGERI, Smith. PL 22, fig. 58. 



Whorls divided by a deep suture, longitudinally closely 

 ribbed, the ribs becoming obsolete on the lower part of the 

 body-whorl, where they are replaced by revolving striae, more 

 distinct towards the base; aperture small, labrum thickened, 

 with a very faint sinus ; chocolate-brown, including the aperture. 



Length, 6*3 mill. 



Patagonia. 

 M. COSTULATA, Dunker. PL 22, figs. 62, 70. 



Shell with close, rounded, longitudinal ribs, and obsolete 

 revolving striae ; yellowish white, with narrow chestnut revolving 

 lines. Length, 8 mill. 



Japan. 



M. Leuckarti, Dunker (fig. 70), is a variety with stronger 

 revolving striae, and uniformly brown-colored. 



