32 INVERTEBRATE ANIMALS. 



cularia. C. aurantia, worn as an ornament 

 by the chiefs in the Friendly Islands. 



upper Compartment. 



Very aged C. tigris ; C. imntherina, with Balani 

 enclosed in a coating of enamel; and many 

 others from the Gaskoin cabinet. 



Group 92.— Family STKOMBID^. (7T(5o>/3oj, a spindle. 



The Strombidse are active animals, possessing large and 



well-developed eyes : they are by some authorities placed 



at the head of the Prosohranchiata. Estimated number 



of species : recent, 84 ; British, ; fossil, 170. Lias, &c. 



IT Examples of Pterocera, Terehellum, Stromhus, 



&c., and a very fine series of Rostellaria, 



Gladins Martinii, Marrat. 



Upper Compartment. 



Rough medallions and finished cameo, from the 

 shell of Strombus gigas. 



Section TOXIFERA. to^ov, an arrow ; ^spw, 

 I carry. 

 Group 93.— Family CONID^. Cone-shells. Estimated 

 number of species : recent, 400 ; British, ; fossil, 80. 

 Cretaceous, &c. 



II Examples of Conns and D'lhaphus, including 



C. omaicus, C. cedo-nulli, C. nohilis, C. aurisi- 



aciis, C. orhignyi, and others, illustrating the 



generic and sub-generic forms of this elabo- 



^ -. '^ rately painted group of shells. 



