219 
EXPLANATION OF PLATES. 
Pruate XXVI. 
1. Dentalium francisense, Verco, n. sp. 

la. YH y) young. 
2. hemileuron, Verco, n. sp. 
3. 1 hyperhemileuron, Verco, n. sp. 
3a. ¥) AD early stage. 
4, $3 lubricatum, Sowerby, early stage. 
4a. , 9 apex. 
5. Cadulus angustior, Verco, n. sp. 
da. - ip A initial stage. 
5b. $3 medium stage. 
6. 5 gibbosus, Verco, n. Sp. 
Ul. re occiduus, Verco, n. sp. 
Prats XXVIII. 
1 to 6. Turbo jourdani, Kiener, half of one row from the radula. 
ILE GL eis, ny » marginal teeth. 
AS OR e rs ry " lateral teeth. 
One. 3 i central tooth. 
Whey gy A; 5 outermost marginals. 
Vay Bs tp ee inner marginals. 
tHe sy) 5 Ss innermost maginal. 
4a. we bi outermost lateral. 
ah 1 +) other laterals. 
ba. central. 
é 

” 
. Déntalium zelandicum, Sowerby, one row from the radula. 
