LITTOR1NID.S). 139 



18. Littorina mespilum. 



. 



Helix mespilum, v. Muhlfdd, Verh. Berlin Oes., I, 1829. Antilles -,= 1. 

 fusca, 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, S. Francisco, long. $, lat \ poll, 

 and Expl. Exp.,pl. 14, fig. 236; ? sect. Melaraphe. 



var. vitiensis. 

 Littorina vitiensis, Dunker. 



3 Tahiti ; ex Mus. Godeffroy. 



Long. 8|, diam. 6| mil. I am by no means sure that this 

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



20. Littorina picta. 



Littorina picta, PUlippi, 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 Mo'rch 

 =L. orbignyana, Philippi, Abb. Ill; sect. Melaraphe. 



7 Guadaloupe j 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. dubiosa of C. B. Adams. 



