MANGILIA. 253 



M. 'CORNEA, Reeve. PL 23, fig. 99. 



Shell ovate, spire acuminated, horny, semitransparent ; finely 

 longitudinally ribbed ; light brown, encircled by a pale zone.. 



Length, 5 mill. 



Hob. unknown. 

 M. LUTESCENS, Reeve. PL 23, fig. 83. 



Whorls very narrowly obtusely shouldered ; longitudinal ribs 

 numerous, small, with revolving striae in the interstices ; yel- 

 lowish brown. Length, 12 mill. 



Hob. unknown. 



Described by Reeve under the name of M. fulva, preoccupied 

 by Hinds. 



M. LIVIDA, Reeve. PL 23, fig. 80. 



Whorls smooth, with narrow flexuous longitudinal ribs ; livid 



flesh-color. Length, 12 mill. 



Philippines, on the reefs (Cuming). 



,M. LINEATA, Reeve. PL 23, fig. 71. 



Shell obtusely longitudinally ribbed, smooth; fleshy brown, 

 with numerous faint revolving lines of darker color. 



Length, 8 mill. 



Hab. unknown (Reeve) ; So. Australia (Angas). 



M. NITENS, Hinds. PL 20, fig. 2. 



Whorls carinately shouldered ; with longitudinal, sharp, oblique 

 ribs, pointed on the shoulder-angle, and extending to the suture, 

 and revolving striae ; flesh-brown. Length, 12 mill. 



N. Australia, New Guinea, Straits of Macassar, 



and Malacca. 

 M. OPALUS, Reeve. PL 20, fig. 5. 



Shell with continuous longitudinal distant ribs, the wide inter- 

 stices smooth or with revolving striae ; whorls obtusely angulated 

 in the middle; white, the interstices of the ribs sometimes more 



or less stained with brown. Length, 9 mill. 



Philippines. 



M. PYRAMIS, Hinds. PL 34, fig. 86. 



Shell white, angularly longitudinally sharp ribbed, six-sided, 

 with close revolving striae. Length, 12 mill. 



Straits of Macassar (Hinds). 



