22 NERITA. 



or 3 minute teeth, area flat, with a few granules below, and pli- 

 cations above, marked by a central bright orange red sjiot. 

 Diam. 12-20 mill. 



East Indies to Polynesia. 



The red spot on the columellar area is very characteristic and is 

 seldom absent. The species is very generally known under the 

 later name of N. signata, Macleay ; other synonyms are N. rudis, 

 Wood, N. peticJiialis, Morch, ? N. musiva, Gould (in part), and 

 X. fragum, Reeve (fig. 50). 



N. PATULA, Recluz. PI. 3, figs. 53-56, 51, 52. 



With 30-40 close, unequal, flattened riblets, crossed by close 

 strife, variegated with grey and black, sometimes Avith black bands 

 articulated w'ith white ; aperture white, the lip-teeth minute, numer- 

 ous or obsolete, columellar margin distinctly sinuous in the middle 

 and the sinuosity indistinctly toothed, the area concave, yellowish, 

 with a central semicircular depression, granular and blotched with 

 black, base with a transverse j)lica. Diam. 18-25 mill. 



Moluccas, Philippines. 



It is N. musiva, Gould, N. Beaniana, Recluz (fig. bb), N. Dom- 

 beyi, Recluz (fig. 56), N. dilatata, Recluz, and N. unidentata, 

 Hombr. and Jacq. (figs. 51, 52). 



N. Senegalensis, Gmel. PI. 3, figs. 57, 58. 



With numerous, low, flat-topped riblets, divided by incised lines, 

 the sculpture often very faint, blackish, maculated aud variegated 

 with yellowish grey ; lij) minutely dentate within, columellar mar- 

 gin concave and moderately 2-3 dentate in the middle, area flat- 

 tened with a number of tubercles, outer margin narrowly elevated 

 and plicate. Diam. 15-25 mill. 



W. Africa, Cape Verd Is. 



N. Largillierti, Phil., is a sy.^.onj'm. 



N. anthracina, Busch. PL 26, fig. 96. 



Black, marl)led with yellowish, spirally, and irregularly longi- 

 tudinally striate, epidermis rough ; lip toothed within, columellar 

 margin quadridentate, median tooth minute, area concave, granular. 



Diam. 14 mill. 



Java. 



This species has not been identified. 



