Part first. 



Fig. 15. Loligo vulgaris (Squid), 

 '/2 nat. size. p. 78. 



2. Snails (p. 78). Sefi-hare {Aplysla 



fio- 



brown lumps 



(fig- 17)- 

 fig. 19) , 



16) , soft black or 



as large as a man' s fist. * PleurohrancJms 



* Urnbrella (fig. 18). Triton's horn {Tritonmm, 



witli red ■ body and yellow horns banded with 



Fig. 16. Aplysia Umacina (Sea-hare), 

 '/2 nat. size. p. 80. 



Fig. n.PlenrobranchustestucUnarius, Fig. 18. Umbrella mediterranea, 



'/^ nat. size. p. 80. 



'/., nat. size. p. 



80. 



black; shell pointed, shaped like a whelk; "^ Tun {Dolkmi, 

 fig. 20) , black and white body , rounded shell ; Miirex 

 (fig. 21), much smaller, with spines; Helmet-sliell {Cassis, 

 fig. 22); Natica (fig. 23), 



