138 LITTORINIDA. 
12. Littorina porcata. 
Littorina porcata, Philippi, Proc. Zool. Soc., 1845, Galapagos. 
5 Panama; ex c. Prof. W. Newcomb. 
13. Littorina planaxis. 
Littorina planaxis, Nuttall UMS., Philippi, Abb. II, 1847, pl IV, fig. 16, 
Upper California ; sect. Melaraphe. 
12 Bodega, and Monterey [California]; coll. Prof. E. C. Stearns. 
14. Littorina aspera. 
Littorina aspera, Philippi, P. Zool. S. 1845 and Abb. II, 1847, pl. IV, 
fig. 13, “ Siteha, Mexico, and S. Salvador” ; ? sect. Littorinopsis. 
12 Panama ; coll. Prof. E. C. Stearns. 
15. Littorina conspersa. 
Littorina conspersa, Philippi, Abd. IT, 1847, pl. IV, fig. 14, Real Llejos; 
2 sect. Littorinopsis. 
10 Nicaragua ; coll. Prof. E. C. Stearns, 
var. fortisulcata. 
10 Nicaragua ; coll. Prof. E. C. Stearns. 
16. Littorina minima. 
Turbo minimus, Gray, Wood’s Sup. Index Test., 1828, Hab.? ; sect, Mela- 
raphe. 
10 W. Indies; ex c, Prof. W. Newcomb. 
17. Littorina lineata. 
Littorina lineata, Lamarck, Hist. VII, 1822, Hab.?; fide Mérch = 
L, tessellata, Phil. 1847 ; sect. Littorinopsis, 
5 West Indies; ex c. Prof. W. Newcomb. 
1 Guadaloupe; exc. P. Joly, Esq. 
