PLATE LXXIV. 
1, Columbella mereatoria, enlarged. 4, Nassa fossata, about natural size. 
2, Columbella (Amphissa) corrugata, en- 5, Nassa mendica, enlarged. 
larged. 
6, Nassa perpinguis, enlarged. 
3, Columbella (Astyris) gausapata, much 7, Nassa tegula, enlarged. 
enlarged. 
8, Siphonalia kellettii, reduced. 
9, Tritonidea tincta. 
