50 



Part first. 



Tank Nr. 24. 



illustrating concealment and mimicry of surroundings. 



On the sand Musk octopus (Eledone, p. 77), black and 

 white. Squilla, see tank 23. * Young Bays and Agnler fish 

 see tanks 10 and 12. 



Hidden in the sand, Fishes: Star-gazer (Uranoscopus, 

 fig. 149), with big oval head and wide mouth. Weever 

 (Trachinus, fig. 150), long-shaped body, head like a frog. 

 Both of these bury themselves all but their eyes. Rock- 

 ling (Motella, fig. 151), Soles (Solea, fig. 153) and Turbot 

 (Rhombs, fig. 152), the exact colour of the sand. 



Fig. 149. Uranoscopus scaber (Star-gazer), 

 l lz nat. size. p. 91. 



Fig. 150. Trachinus draco (Weever), 

 */ 2 nat. size. p. 91. 



Fig. 151. Motella vulgaris (Rockling), 

 Vs nat. size. p. 93. 



