454 



SUPPLEMENT. 



1 



The lingual ribbon of Murex, Purpura, and most of the other members i 

 of the family, is very slender, and the teeth minute and glassy. It is quite j 

 certain that they drill holes in other shells to get at the animal ; the process i 

 may be observed even in the confinement of a vivarium. The short, deeply ! 

 notched canal of Bticcimim and Nassa is related to their burrowing habits ; I 



Mr. Warington has observed that when ; 

 Nassa reticulata burrows, it maintains a i 

 communication with the surface by means 1 

 of its long recurved siphon. 



The teeth of FascioJaria resemble those \ 

 of Fusus Istandicus. In Buccimim unda- ; 

 turn, the median tooth has 5, or rarely 6 j 

 denticles; and Mr. Wilton has observed { 

 that B. Umbosum, $ has the teeth 7 cusped, j 

 whilst in the females they are 6 cusped. I 



Fam. 4. Conidee: teeth 1. 0. 1. (see p. 117). ' 



Fiff. 243. 



Fasciolaria Tarentlna. 

 (Wilton.) 



Conus. 



Pleurotoma. Cithara. 



Terebra? 



Fam. 5. Voluiidte : teeth single, rachidian, or 1. 1. 1. 

 Voluta. Cymba. Melo. Marginella? 



?]Mitra Grcenlandica, teeth 0. 1. 0. minute, voluta-like; in 

 more than 120 rows. 

 „ Caffra teeth 1. 1. 1. buccinoid. 



„ episcopalis „ 1. 1. 1. resevcMing Fasciolaria. 



Fam. 6. Cyprteida : teeth 3. 1. 3. (p. 28). 

 Cyprsea. Ovulum. Pedicularia. Erato ? 



Fig. 244. Voluta. In Ovulum the teeth are 2. 1. 2. the outermost broad, 



(Wilton). ^ji^]^ pectinated margins. Loven describes the Cyprseidae 



as having a short, non-retractile muzzle, and places them between the Nati- 

 cidce and Lamellaria. 



Fam. 7. Naticidce: teeth 8. 1. 3. or 1. 1. 1. 



Natica 



Sigaretus. 



Fig. 245. Natica moniUfera. (Wilton.) 



c^ 



Fig. 246. Velutina IcEvigata. (Warington. 



Lamellaria. Velutina. 



The mouth of Natica 

 is armed with buccal plates, 

 shorter and broader in pro- 

 portion than those of Triton 

 (p. 239), and a similar ar- 

 mature exists in Lamel- 

 laria. 



The dentition of La- 

 mellaria is described and 

 figured by Loven, and in 

 the elaborate monograph by 



