130 &. 
LIBINIA EMARGINATA. 
TAB, -CVIIL 
L. rostro apice emarginato, testa lateribus utrinque sex- 
spinosis. 
Habitat 
Mus. Brit. 
NOTCHED LIBINIA. 
Beak with its apex notched, shell on each side with six 
spines. . 
The locality of this species, which is the only one of the 
genus that has yet been observed, is unknown. 
There is a very fine specimen preserved in the British 
Museum. 
