A, FE. Verrill—The Bermuda Islands; Geology. 183 
Nerita versicolor Meusch. Figure 61, 4. 
Not common; near Hungry Bay. 
Fissurella (Cremides) barbadensis (Gmel.). Figure 62, a, b. 
Fissurella barbadensis Gmelin=F. antillarum d’Orb., and of many others. 
Recorded by Rice. 
Figure 61.—1, 2, Nerita tessellata ; 3, 5, N. peloronta; 4, N. versicolor. Natural 
size; phot. A. H. V. 
Figure 62.—a, b, Fissurella barbadensis ; c, Glyphis alternata; d, Siphonaria 
alternata ; e, Chiton tuberculatus, young. Ali about natural size. Recent. 
Phot. A. H. V. 
Fissuridea alternata (Say). Figure 62, c. 
Fissurella alternata Say=Glyphis alternata of many writers. 
Recorded by Rice as Fissurella greca, which is a Mediterranean 
species closely related to / alternata. Rice’s specimens may have 
been / alternata, which is the common recent Bermuda species of 
this group, or #. Lister’, which is very similar. 
Bulla occidentalis Adams. 
Bulla media of many authors (non Linn.). 
Fragments are common, 
