258 MANGILIA. 



granules and a deep groove beneath the suture, and with straight 

 instead of oblique ribs. Perhaps a Drillia. 



M. ERICEA, Hinds. PI. 16, fig. 71. 



Light brown ; slightly shouldered, the ribs continued to the 

 sutures, nodulous below the shoulder, by the crossing of revolv- 

 ing lines. Length, 12*5 mill. 



Coast of Veragua. 

 M. C^ELATA, Hinds. PI. 16, fig. 67. 



Whorls shouldered, with an elevated revolving line below the 

 suture, shortly obliquely ribbed below the shoulder ; dark chest- 

 nut, aperture blackish. Length, 6*5 mill. 



Gulf of Fonseca, mud, 20 fms. (Hinds). 



M. CONCENTRICOSTATA, Reeve. PL 15, fig. 48. 



Shell slenderly fusiform, spire acuminated, whorls very closely 

 concentrically ribbed, sutures simple ; flesh-tinged brown. 



Length, 12 mill. 



Habitat unknown. 



Closely allied to M. variculosa, Sowb., but without the raised 

 revolving striae of that species. 



M. MARGARITIFERA, Gray. PL 15, figs. 39, 43. 



Whorls rounded or very slightly shouldered, reticulated by 

 longitudinal and revolving fine ribs and lines ; yellowish brown, 

 tinged with chestnut, sometimes forming an indistinct central 

 band. Length, 7 mill. 



Habitat unknown. 



With this species I unite M. dsedala, Reeve (fig. 43), also 

 described without locality, but for which Mr. Brazier indicates 

 Torres Straits, N. Australia. 



M. CARDINALIS, Reeve. PL 15, fig. 44. 



Obliquely longitudinally plicated, minutely transversely stri- 

 ated ; yellowish white, with three narrow chocolate bands. 



Length, 10 mill. 



Isle of Negros, Philippines. 



M. ORASSILABRUM, Reeve. PL 15, figs. 45, 47. 



Shell narrowly shouldered, the shoulder smooth, tubercularly 



