LITTOEINID^. 139 



18. Littorina mespilum. 



Helix mespilum, v. MuJiIfeld, Verh. Berlin Ges., I, 1829,' Antilles ;=^L. 

 fusca, Pfr. 1840, Cuba ;=i/. naticoides. Orb. ; sect. Melaraphe. 



2 Jamaica : ex c. Prof. W. Newcomb. 



19. Littorina plena. 



Littorina plena, Gould, P. Bost. S. 1849, S. Francisco, long, }, lat \ poll, 

 and Expl. Exp., pi. 14, Jig. 236 ; ? sect. Melaraphe. 



var. vitiensis. 

 Littorina vitiensis, Dunker.- 



3 Tahiti ; ex Mus. Godeffroy. 



Long. 8|, diam. Q\ mil. I am by no means sure that this 

 form is Gould's L. plena. The spire is very much shorter, &c. 



20. Littorina picta. 



Littorina picta, Philippi, Abb. II, 1847, pi. Ill, 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. orhignyana, Philippi, Abb. Ill; sect. Melaraphe. 



7 Guadaloupe ; ex c. Prof. W. Newcomb and P. Joly, Esq. 

 10 Aspinwall ; ex c. 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. duhiosa of C. B. Adams. 



