SY 
BENT MODIOLE. 
Shell greenish-olive, slightly iridescent; anterior side lu- 
teous, deeply and broadly notched. 
Several specimens of this species, all having decorti- 
cated beaks, occur in the cabinet of shells in the British 
Museum. The curved appearance arises from the depth 
of the notch on the anterior side of the shell. The locality 
is unknown. 
RK b. 
To this section, Mytilus preustus (which seems to have 
been confounded with other kindred species) is referable. 
