658 EXPLANATION OP THE PLATES. 



Fig. B. Octopus tenebricus, doiBal view ; B^ oral aspect ; B', end 

 of heotocotylized arm, lateral view; B', lower side of 

 same. 



C. — ' — maculosits. 



D. Pleurotoma (Drillia) forresiana, front view ; D*, side 



view. 



E. {Drillia) latereulata (the type). E'. Variety. 



E. (GlypJiostomd) spurca (the type). E'. Variety. 



G. (Daphnella) arafurensis. 



H. Cythara cylindriea (var.). TS}. Lateral view. 



Plate V. 

 Fig. A. Murex coppingeri. 



B. acanthostephes. 



C. macgillivrayi, . 



D. Pusus cereus. 



E. Tritonidea curtigiana, 



F. Latirus angustus. 



G. Twrhinella {Tudveida) armigera, 

 H. ( ) spinosa, 



I. Mitra proscissa (var.). 



K. Valuta volva (var.). 



L. Natica limpida. 



M. Rissoina curtisi. 



N. Oerithium nigro-balteatwm. 



0. torresi. 



P. Trochus (Jsanda) coronafa (type). P", Variety ; P'. Var. 

 lepida. 



Plate VI. 

 Fig. A. Tfoi^ui (Thalotia) torresi. 



B. (MonUea) lifuana, front view; B', upper surface. 



