DE8C11IPTI0N. 
123 
Specimen white, marked with bluish liesh-co- 
loured streaks and spots, striated transversely in 
such a manner as that towards the anterior side 
the shell appears divided into two triangular com- 
partments following the curvature of the lower 
margin ; covered with a yellowish olive transparent 
epidermis. 
Inhabits the English coast. 
Fig. 5. S. radiatus. 
Shell oblong oval, straight, smooth, with an 
internal rib from the hinge to the base. 
Lister Conch. Tab. 422. Fig. 266. 
Specimen violet, with four white rays, extremely 
thin and brittle, rib white, strong ; hinge in both 
valves callous; teeth in both valves bifid. 
Inhabits the East Indies. 
♦ 
PLATE V. 
Fig. 1. Hinge of Tellina radiata. 
Fig. 2. Tellina numsa. 
O O 
Shell ovate, with transverse undulated wrinkles ; 
