LITTORINIDS. 139 
18. Littorina mespilum. 
Helix mespilum, v7, Mihlfeld, Verh. Berlin Ges. I, 1829, Antilles ;=L, 
Susca, Pfr. 1840, Cuba ;=L. naticoides, Orb.; sect. Melaraphe. 
2 Jamaica; ex c. Prof. W. Newcomb. 
19. Littorina plena. 
Littorina plena, Gould, P. Bost. 8. 1849, 8. Francisco, long. }, lat. 4 poll. 
and Expl, Eup., pl. 14, fig. 236 ; ? sect. Melaraphe. 
var. Vitiensis. 
Littorina vitiensis, Dunker. 
3 Tahiti; ex Mus. Godeffroy, 
Long. 83, diam. 6} mil. I am by no means sure that this 
form is Gould’s L. plena. The spire is very much shorter, &e. 
20. Littorina picta. 
Littorina picta, Philippi, Abd. II, 1847, pl. III, fig. 26, Sandwich Islands 
and Luzon, with var, marmorata, 
12 Sandwich Islands ; coll. H. Pease, Esq., and Prof. W. Newcomb. 
21. Littorina ziczak. 
Trochus Ziczac, Chemnitz, Conch. Cab. I, Vol. V, fig. 1599 ; fide Morch 
=L. orbignyana, Philippi, Abb. ITI; sect. Melaraphe. 
7 Guadaloupe; ex c. Prof. W. Newcomb and P. Joly, Esq. 
10 Aspinwall; exc. Prof. E. C. Stearns, 
22, Littorina philippii. 
Littorina philippii, Carpenter, Cat. Mazatlan Shells, 1857. 
30 Gulf of California ; ex c. Profs, W. Newcomb and E. C, Stearns. 
Has been stated to be the Lit. dubtosa of C. B. Adams, 
