44 



Part first. 



MollllSkS. Worm-shell (Vermetus^ fig. 125), resembling the 

 worm Protula, but easily distinguishable by its two feelers. 

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

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

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



Fig. 125. Vermetus gigas, two 

 living specimens and one empty shell, 

 !/2 nat. size, p 80. 



Fig. 127. Two specimens of 

 Ostrea edulis on a stone, 



*/2 nat. size. p. 82. 



Fg. 126. Haliotis tuber- 



culata, 

 % nat. size, p, 79. 



Fig. 128. Two specimens of 

 Pinna nobilis partly buried 



in the sand, 

 1/4 nat. size. p. 83. 



