APPENDIX. 617 



Sub-gen. aueinia, H. and A. Adams (Livonia, Gray). 



Nucleus or shell of the very young animal very large, irregu- 

 larly spiral. 



dubia, Broil. mamilla, Gray. 



Sub-gen. aulica, Gray. 

 Nucleus large, regularly spiral, smooth. 



aulica, Soland. magnifica, Chem. 



Deshayesii, Reeve. piperita, Sow. 



Junonia, Chem. punctata, Swains. 

 luteostoma, Chem. 



Sub-gen. cymbiola, Swainson. 



Nucleus small, regularly spiral, smooth. 



colocynthis, Chem. (Bra- Magellanica, Chem. (ancilla, 



siliana, Soland.). Soland. Beckii, Brod.). 



Ferusacii, Donov. 



Sub-gen. almthoe, H. and A. Adams. 



Nucleus small, spiral, smooth, with the upper whorl rather 

 swollen and irregular. 



concinna, Brod. megaspira, Sow. 



fusiformis, Sivains. Pacifica, Soland. (gracilis, 

 fusus, Quoy and Gaim. Swains.). 



(tuberculata, Swains.). 



Genus voluta, Linnaeus, 

 ebraea, Linn. musica, Linn. 



Sub-gen. chlorosina, Gray. 



Outer lip thickened, reflexed on the edge ; inner lip thickened, 

 compressed. 



polyzonalis, Brug. ^<CTn 



Sub-gen. harpula, Swainson. /\"OB ^ / \ 



Outer lip rounded, not reflexed on the edge. Ktj -^ \* < 



Lapponica, Linn. vexillum, Chem. I UJ 1 *- ' 



