MANGILIA. 255 
M. casTANEA, Reeve. PI. 23, fig. 84. 
Whorls rounded; longitudinally ribbed, the interstices with 
close revolving strie ; chestnut-brown. Length, 11 mill. 
Isle of Burias, Philippines (Cuming). 
Nearly related to WM. livida, but the ribs are straighter, the 
canal more slopingly produced, and the surface striate. 
M. RopusticosTaTA, 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. spuenpipA, A. Adams. PI. 22, fig. 55. 
Shell somewhat thin, subpellucid, shining, with longitudinal, 
obtuse, unequal, rather weak plicze, 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. Coppincert, 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 strive, 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. costutatTa, Dunker. PI. 22, figs. 62, 70. 
Shell with close, rounded, longitudinal ribs, and obsolete 
revolving striz ; yellowish white, with narrow chestnut revolving 
lines. Length, 8 mill. 
Japan. 
M. Leuckarti, Dunker (fig. 70), is a variety with stronger 
revolying striz, and uniformly brown-colored. 
