Tanks Nv. 24, 25. 



51 



Fig. 152. Rhombus maximtis CTurbot), 

 '/^ nat. size. p. 92, 



Fig. 153. Solea vulgaris (Sole), 

 ^/j nat. size. p. 92. 



Fiff. 154. Cardium aculea- 



tMm (Cockle), 

 */2 nat. size. p. 84. 



Bivalves. Cookie (Cardium, lig'. 154); Pectunculus, much larger, 

 shell without spines. 



Tank Nr. 25 



showing other cases of imitation. 



Fishes. Scorpaena (fig. 48\ ragged , mottled brown and red. 

 These with the Crabs, Maja (fig. 49), Pisa (tig. 140.), etc., 

 closely resemble the stones among which they lie. 



