20 NERITA. 



N. GRANULATA, Reeve. PI. 2, fig. 30 ; PI. 4, fig. 70. 



Blackish, spirally subcostate or Urate ; columellar area strongly, 

 granulated, outer lip very strongly plicate within. Diam. 17 mill. 



Hab. unknown. 



N. CHAM.ELEON, Linn. PI. 2, figs. 31-39 ; PL 6, fig. 4 ; PI. 9, fig. 



66. 



Shell with numerous, low, rugose sj^iral ribs, sometimes alter- 

 nately smaller, the interspaces varying from a mere line to the 

 width of the ribs, whitish, yellowish white or orange color, macu- 

 lated with dark grey, brown or black, often forming three indistinct 

 interrupted bands ; aperture white, columellar area with a few 

 granules behind the marginal teeth, and some plications on the 

 raised outer margin. Diam. 25-30 mill. 



East Indies to Polynesia, East Africa. 



The synonymy includes N. stella, Chemn. (figs. 31-33), N. squa- 

 mulata, LeGuillou (figs. 34-36), N. modesta, Hombr. and Jacq. (fig. 

 37), ? N. chloroleuca, Phil., N. scahrella, Phil., N. Arabica, Reeve 

 (fig. 38), a tessellated specimen, N. annulata, Reeve (figs. 39, 4), 

 N. bizonalis, Lam., and probably N. electrina, Reeve (fig. 66). 



N. EXCAVATA, Sowb. PI. 8, fig. 34. 



With strong, approximate, flattened spiral ribs, black variegated 

 with white ; aperture yellowish, black-margined, columellar area ex- 

 cavated, granular, marginal teeth tumid, acute, plications of lip 

 strong, the up2:)er and lower larger. Diam. 22 mill. 



Hab. unknoivn. 



Apparently not very difierent from N. granulata, Reeve. 



N. ORYZARUM, Recluz. PI. 3, fig. 40. 



With rather distant and faint low spiral riblets, black, with zig- 

 zag maculations and sometimes an interrupted band of white, lip 

 with faint plicate denticles within, columellar margin with three or 

 four minute denticles, the area with several small granulations, 

 its outer margin with a few plications. Diam. 1 inch. 



Aracan (Hanley), Bombay (Recluz). 



N. SEMiRUGOSA, Recluz. PI. 3, figs. 41-43. 



With numerous low riblets and much narrower grooves, whitish, 

 with usually small, frequently linear series of black maculations, 

 sometimes undulated, or more or less confluent ; lip plicately 

 toothed within, columellar margin strongly three-toothed, tlie area 



