264 MANGILIA. 



slight shoulder-angle and attaining the suture, revolving striae 

 very fine and close ; white, with traces of brown staining. 



Length, 12 mill. 



N. Caledonia. 



Is possibly a variety of the preceding species, from which it 

 appears to differ only in the absence of the hair-like brown lines. 



M. STROMBOIDES, Reeve. PL 23, fig. 1. 



Interstices of the ribs with fine revolving striae ; yellowish 

 white. Length, 14 mill. 



Philippines (Cum ing), Red Sea (Riippell). 



M. ELEGANS, Reeve. PI. 23, fig. 3. 



Interstices of the narrow ribs very beautifully elevately 

 striated ; yellowish white, very faintly zoned with brown. 



Length, 13 mill. 



Philippines (Cuming). 



Perhaps a variety of the preceding species, 



M. BALANSAI, Crosse. PI. 25, fig. 35. 



Yellowish white, the interstices of the ribs chestnut-colored, 



obsoletely chestnut-banded. Length. 19'5 mill. 



Neiv Caledonia. 



Narrower and more numerously ribbed than M. Stromboides, 

 Reeve. 



M. DUBIOSA, Nevill. PL 25, fig. 42. 



Doubtfulty distinct from the next species, which is described 

 and figured from a young shell. White, with a broad brown 

 stain on the back of the last whorl ; ribs narrow, straight, not 

 on the shoulder, interstices closely striated. Length, 7*5 mill. 



Andaman Is. ; Mauritius. 

 M. CONIFORMIS, Gray. PL 26, fig. 79. 



Shell rather transparent, thin, whitish ; faintly plicate on the 

 upper part of the whorls, transversely very faintly striated. 

 Length, 9 mill. 



Habitat unknown (Reeve) ; W. Coast of Cent. Am. (Morch). 



M. SOUVERBIEI, Tryon. PL 22, fig. 65. 



Shell minutely tuberculate at the shoulder-angle, and covered 



