NATICA. n 



It is yevy doubtful whether this is really distinct from the 

 preceding species. N. Javanica, Lam., is a synonj'^m. 



N. FANEL, Adanson. PL 2, fig. 29. 



Widel}' umbilicated, with a re-entering callous central ridge, 

 the umbilicus bounded by a sharp angle ; whorls flattened next 

 the suture ; punctate with chestnut, some of the punctations con- 

 fluent into maculations, which are either irregular or form two 

 or three interrupted revolving series. 



Se7}egal. 



Reeve changed the above barbarous specific name to Adan- 

 soni alread}^ used by Philippi. I cannot consent to re-baptize 

 the species ; better a bad than an unstable name. 



N. LYNX, Phil. PI. 2, fig. 34. 



Rather thick, smooth, whitish, with light chestnut spots, 

 umbilicus ver}' narrow, nearly filled by the funiculate callus. 



Height 6-G6, diam. 5-33 mill. 



Ilangalore, India. 



Closely resembles the preceding species in form and coloring; 

 distinguished by its much smaller size and narrow umbilicus. 



N. IMPERFORATA, Gray. PL 3, fig. 3fi ; PL 7, figs. "27, 28. 



Solid, with a heavy white callus quite closing the umbilicus, 

 whorls a little constricted below the suture, where they are 

 shortly chestnut-flamed, everywhere else densely minutel}^ punc- 

 tate with chestnut, with obsolete light revolving bands. 



Diam. 1 inch. 



Caj^e of Good Hope, West Af7-ica (Marrat). 



N. gennanus., Reeve (figs. 21, 28), is a younger and more per- 

 fect state of this species, with the narrow pale bands more 

 distinct and bearing dark spots or sagittate markings. 



N. FLORIDA, Reeve. PL 3, fig. 31. 



Umbilicated, umbilicus brown stained, with a central entering 

 ridge ; whitish, with close chestnut punctations and two faint 

 light purplish bands, sometimes obsolete. Length, 22 mill. 



Hab. unknown. 

 N. PULicARis, Phil. PL 3, figs. 38, 39. 



Shell umbilicated, smooth, polished, a little flattened beneath 

 the suture ; columella callous above ; whitish, closel}^ sprinkled 



