6S HELICID^J. 



19. Helix (Rhytida) capillacea, Pfeiffer. 



2 New South Wales; ex c. Dr. J. C. Cox. 



20. Helix (Rhytida?) inaequalis, Pfeiffer. 



2 New Caledonia ; ex c. A. Morelet, Esq. 



I do not see how Messrs. Crosse and Fischer can make this 

 species the type of Rhytida, when its author states that the type 

 of the latter is the Kew Zealand H. greenwoodi. When proved 

 that they belong to different genera, the Kew Caledonian group 

 must receive a new name : the same applies to Rotula. Prof. 

 Semper cannot now make its type N. caelatura ; the type is and 

 must remain N. detecta, as correctly asserted by Dr. Stoliczka ; 

 the two belong to different sub-generic sections. 



21. Helix (Rhytida?) dictyodes, Pfeiffer. 



6 New Caledonia ; ex c. A. Morelet, Esq. 



Sub-Genus CHAR OP A, Albers. (type H. coma). 



22. Helix (Charopa) sericatula, Pfeiffer. 



6 Australia ; ex c. British Museum. 



23. Helix (Charopa), sp, 



8 Australia ( ?j) ; ex c. G. Nevill, Esq. 



Sub-Genus VITRINOCONUS, Semper (type H. cyathellus). 



24. Helix (Vitrinoconus) cyathellus, Pfeiffer. 



9 Philippines ; coll. Prof. C. Semper. 



From the shell, I should have classed this form near Sesara. 



Sub-Genus ENDObOXTA, Albers. (type H. lamellosa). 



25. Helix (Endodonta) acetabulum, Pease. 



2 Tahiti ; ex c. W. A. Brown, Esq. 



26. Helix (Endodonta) ficta, Pease. 



2 Tahiti; ex c. W. A. Brown, Esq. 



27. Helix (Endodonta) conula, Pease. 



2 Tahiti ; ex c. W. A. Brown, Esq. 



