26 Forty- SIXTH Report on the 



Fissiirella maxima, Lam., Valparaiso, Chile, seven specimen. 



Fissurella nigra. Less., Valparaiso, Chile, four specimens. 



Fissurella crassa, La-n., Valparaiso, Chile, three specimens. 



Fissurella picta, Gm., I. of Juan Fercandez, Chile, two specimens. 



Fissurella picta, Gm., Valparaiso, Chile, sixteen specimens. 



*' Chiton squamosus," one specimen. 



" Chiton setiger," Valparaiso, Chile, two specimens. 



" Chiton granosus," Chile, three specimens. 



" Chiton olivaceus," Valparaiso, Chile, two specimens. 



" Chiton Peruvianus," Cape Horn, two specimens. 



" Chiton elegans," San Bias, Mex., one specimen. 



*' Chiton elegans," Valparaiso, Chile, two specimens. 



" Chiton maginatus," L of Santa Maria, Chile, three specimens. 



Chiton Sp ? Valparaiso, Chile, live specimens. • 



" Bulla rosea," one specimen. 



*' Helix Banksii," L of Santa Maria, Chile, five specimens. 



Helix Sp.? four specimens. 



Helix Sp.? four specimens. 



Helix Sp.? four specimens. 



Bulimus erythrostoma, Sowb., Copiapo, Chile, two specimens. 



*' BuUimus purpurea," two specimens. 



Partula Sp,? four specimens. 



Partula Sp.? six specimens. 



Saxicava Arctica, Linn., one specimen. 



Mya arenaria, Linn., one specimen. 



Asaphis radiata, Linn,, two specimens. 



*' Sanguinolaria rugosa," Panama, one specimen. 



Tellina radiata, Linn., three specimens. 



Tellina rugosa. Born., two specimens. 



Tel'lina interrupta. Wood, one specimen. 



Trigonia radiata, Sowb., Panama, one specimen. 



Macoma Baltica, Linn., three specimens. 



Callista maculata, Linn., one specimen. 



Dione lupinaria, Less., Panama, one specimen. 



Tapes histrionica, Brod. & Sowb., Panama, one specimen. 



Isocardia cor,, Linn., one specimen. 



Cardiimi fragum, Linn., two specimens. 



Cardium medium, Linn., one specimen. 



Cardium muricatum, Linn., one specimen. 



" Chama communis," one specimen. 



Chama ponderosa, Brod., Panama, one specimen. 



