44 



Part first. 



Mollusks. Worm-shell {Vermetus, fig. 125), resembling the worm 

 Protula , but easily distinguishable by its two feelers. 

 Ear-shell ( IlalioHs , fig. 126 ) , on the sand. Bivalves : 

 Oysters {Ostrea, fig. 127), Pinna, horny-looking, ragged, 

 mussel-shaped shells (Fig. 128), Avicula (fig. 129), etc. 



Fig. 125. Vermetus gigas 



(Worm-shell), two living 



specimens and one empty shell, 



'/a nat. size. p. 80. 



Fig. 127. Two specimens ot 



Ostrea edulis (Oyster) 



on a stone, 



'/^ nat. size. p. 82. 



Fig. 126. Haliotis tuber 

 culata (Ear-shell), 

 '/2 nat. size. p. 79. 



Fig. 128. Two specimens ot 



Pinna nohilis partly buried 



in the sand. 



V4 nat. size. p. 83. 



