LITTORlNIDiG. 139 



18. Littdrina mespilum. 



Helix mespilutn, ». Miihifeld, Verh. Berlin Ges., I, 1829, Antilles ;=L. 

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



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



19. Littorina plena. 



Littorina plena, Gould, P. Bost. S. 1849, S. Francisco, long, ^, lot \ poll, 

 and Expl. Exp., pi. 14, fig. 236 i ? sect. Melaraphe. 



var. vitiensis. 

 Littorina vitiensis, Bunker. 



3 Tahiti ; ex Mus. GodefFroy. 



Long. 8|, diam. 6| 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, Alb. 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 ziezak. 



Trochus ziczac, Chemnitz, Conch. Cab. I, Vol. V, fig. 1599 ; fide March 

 ^L. orlignyana, 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. 



