246 LITTORINA. 



Frequenily named L. Mauritiana, Lam. in American collections; 

 that, however, is a Polynesian and Australasian species, smaller, 

 with chestnut or chocolate aperture having a white band near 

 the base. 



It is L. Sayi, Phil, not Reeve. 



Var. FLAVA, Brod. Fig. 51. 



Spiral sculpture stronger, one or two of them more prominent on 

 the periphery, which thus becomes angulated. 



Rio Janeiro. 



L. Oubana, Weink. (figs. 79, 14, 15). is possibly a connecting link 

 between this variety and the type of the species: it is evidently 

 poorly figured, and I cannot identify any of our shells with it. 



L. VARIA, Sowb. PL 43, figs. 44-46. 



Rather thick, ventricose, convex, closely slightly striate, varying 

 to cord like spiral ridges; yellowish white, spirally lineated with 

 chestnut, often broken up into tessellated markings, and these fre- 

 quently gathered into irregular oblique strigations, interior edge of 

 lip spotted with chestnut. Length, T25 in. 



Peru, Panama, Mazatlan. 



The synonymy includes L. fasdata, Gray. (fig. 45), L. variegata, 

 (fig. 46), L. costulata, Souleyet, and probably L. bicarinata, Gray. 



L. PULCHRA, Sowb. PL 43, fig. 47. 



Ventricose. a little flattened round the top of the whorls, densely 

 spirally striate, thick, yellowish brown, with irregular oblique 

 chocolate strigations, interior similarly colored. Length, To in. 



Panama. 

 L. IRRORATA, Say. PL 43, figs. 48, 49, 50. 



Whorls flattened, the last a little constricted above, swollen below, 

 thick, spirally costulate; yellowish white, more or less clouded with 

 light purple, apex purplish, the striae bearing numerous minute 

 chestnut dots, columella tinged with orange color, outer lip with 

 chestnut marginal spots. Length, 1 inch. 



Southern Coast of the United States, from Texas and Florida 

 northward to Atlantic City, N. Jersey; Costa Rica, West Indies, 

 Brazil. 



It is only of recent years that this species has appeared so far 

 northward as Atlantic City, where it was first detected by Mr. John 

 Ford of Philadelphia. It is L. Sayi of Reeve (fig. 49), not PhiL 

 L. exarata, PhiL (fig. 50). 



