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THE OCEAN WORLD. 



rust-coloured, marked by square brown spots. Turbo argyrostomus ^ 

 the Silver-mouthed Turbo (Fig. 225), is still larger, with protecting 

 spines on the top of its larger spiral. Turbo marmoratus (Linnaeus), 



Fig. 224. Turbo margaritacei 

 (Linnaeus). 



Fig. 225. Turbo argyrostomus (Linnaeus). 



Fig. 226. Turbo marmoratus (Linnaeus). 



Fig. 227.Turbo undulatus (Chemnitz). 



the Marbled Turbo (Fig. 226), is the largest shell in the group. It is 

 marbled green, white, and brown, outside, and superbly nacred within. 

 The Gold-mouthed Turbo is so named from its nacre being of a rich 

 golden yellow. The Wavy Turbo (T. undulatiis, Fig. 227), commonly 



