12 SUPPLEMENT TO THE CRAG MOLLUSCA. 
The specimen figured was lent to me by Mr. Bell, who obtained it from a dealer at 
Orford. I have a second, but less perfect, specimen from the Cor. Crag of Sutton. I 
have also found one in the Red Crag of Sutton, which I consider may be referred to the 
same species. In the‘ Crag Moll.,’ vol. i, p. 30, this was considered as specifically different 
from JV. granulata, and the differences are there pomted out. 
VV. granulata, ‘ Nyst. Foss. Belg.’ p. 575, pl. xlm, fig. 11, appears to belong to this 
species. 
Nassa pyema@ma, Zam. Crag Moll., Appendix, p. 315, Tab. XXXTI, fig. 5; Supplement, 
Tab. VI, fig. 6. 
Localities. Cor. Crag, Sutton? Red Crag, Butley (Bell) ? Post-glacial, Nar Brick- 
earth (Rose). 
The condition of the specimen fig. 5 of Tab. XXXI renders it doubtful whether this 
species has occurred in the Cor. Crag. It is given by Mr. Bell ( Ann. and Mag. Nat. 
Hist.,’ May, 1871) as from the Red Crag of Butley, but I have not seen the specimen. 
The shell figured in Supplement, Tab. VI, fig. 6, is one of a suite in excellent preservation 
obtained by Mr. Rose from the Nar Brick-earth, and on the tablet was the name of Vassa 
pygmea, by Myr. Jetireys. 
Nassa eranubara, J. Sowerby. Crag Moll., vol. 1, p. 29, Tab. ITI, fig. 3. 
Localities. Cor. Crag passim. Red Crag passim. Middle Glacial, Billockby and 
Hopton. 
Several specimens of this species, most of them very imperfect, but with their 
distinctive characters well preserved, haye been obtained from the Middle Glacial sands 
at Billockby and at Hopton Chiff. 
Nassa incrassava, Miller. Crag Moll., vol. i, p: 29; Nab. III, fig. 4. 
Localities. Cor. Crag, Sutton. Red Crag, Sutton and Butley. Fluvio-marine Crag, 
Bramerton. Middle Glacial, Billockby. Post-glacial, Nar Valley. 
I have scen this shell from the Fluvio-marine Crag of the Bramerton Pit. The 
body-whorl and mouth of this shell have also been obtained from the Middle Glacial 
sands of Billockby. Several specimens in fine preservation have also been obtained by 
Mr. Rose from the brick-earth of the Nar Valley. 
