219 



EXPLANATION OF PLATES. 



Plate XXVI. 



1. Detitalium francisense, Verco, n. sp. 



la. „ „ „ „ young. 



2. ,, hemileuron, Verco, n. sp. 



3. ,, hyperhemileuron, Verco, n. sp. 



3a. „ „ „ early stage. 



4. ,, lubricatum, Sowerby, early stage. 

 4a. ,, ,, ,, apex. 



5. Cadulus angustior, Verco, n. sp. 



5a. ,, ,, ,, initial stage. 



ob. ,, ,, ,, medium stage. 



6. „ gibbosus, Verco, n. sp. 



7. ,, occiduus, Verco, n. sp. 







Plate XXVII. 



1 to 6. 



Turbo jourdani, Kiener, half of one row from the radula 



1,2,3. 



J> 3 





, marginal teeth. 



4,5. 



3 3 3 





, lateral teeth. 



6. 



J ? 3 





, central tooth. 



!a. 



33 3 





, outermost marginals. 



2a. 



33 3 





, inner marginals. 



3a. 







, innermost maginal. 



4a. 







, outermost lateral. 



5a. 



3 3 3 





, other laterals. 



6a. 



3 3 3 





, central. 



7. 



Dentalium 



zelandicu' 



n, Sowerby, one row from the radula 



