Tank No. 22. 



45 



Fig. 123. Vcrnictiis gigas (Worm-shell), 

 wo living specimens and one empty 

 shell, 1/2 nat. size. p. 93. 



Fig. 124. Two specimens of 



Ostrea edulis (Oyster) on a stone, 



1/2 nat. size. p. 96. 



Fig. 125. Haliotis tiibcrculaia 

 (Ear-shell), V2 ^^^t- s'^^- P- 9^- 



Fig. 126. Four specimens of Avicula hirimdo 



attached to a stone, 



1/2 nat. size. p. 97. 



Fig. 127. Two specimens of 



Pinna nobilis 



partly buried in the sand, 



V4 nat. size. p. 97. 



