10 



Part first. 



Pi<^. 23. Natica mille punctata, 

 ^/j nat. size. p. 79, 



Fig. 24. Pecten jacohaeus (acaiiop), 

 '/^, nat. size. p. 84 



Fig, 26. Pholas dactylus (Piddock), 



in a stone^ 



'/2 nat. size. p. 83. 



Fig. 25. Three specimens of 



Mytilus (jaUoprovincialis 



(Edible Mussel), 



attached to a piece of rope, 



'/.^ nat. size. p. 83. 



Fig, 27, Two specimens of 



Lithodomus dacfyhis, 



within a piece of tufa, 



'/2 nat. size. p. 83. 



3. Bivalves (p. 81). Scallop (Pecten, fig. 24), with flat fluted 

 shell. Edible Mussel {Myfilns , flg. 25). Piddock ( Pholas , 

 flg. 26) and LiiliodomuA (flg. 27) , both making holes in 

 rocks or coral reefs. 



'■■ Eggs of Mollusks. Of the squid hanging from the dead coral 

 in long white bags ; of the sea-hare flnc yellow strings , 

 of the tun ribbons a finger-length broad; of Murex large 

 honeycomb-like masses. 



The lettuce sea-weed serves as food for the sea-hares. 



