Crustaceans 81 



they are therefore, on arrival, laid upon 

 their backs in quite shallow receptacles 

 filled with just enough water to partially 

 cover them. In these they remain for 

 one or more hours bubbling out the air 

 inhaled on the journey. When the gill 

 chambers become once more filled with 

 sea water the patients are able to turn 

 over without assistance, and are then 

 considered to have recovered sufficiently 

 to appear before the public. 



The handsome reddish-brown rock 

 lobster the langouste of the French 

 may measure two feet from head to tail. 

 The antennae, which are nearly half as 

 long again, are responsible for certain 

 musical sounds which are produced by 

 rubbing the basal joints against the sides 

 of the beak. The " music " produced 

 has been compared to a beginner's effort 

 on the double bass. The antennae serve 

 also as a form of wireless apparatus, being 

 fringed with hairs provided with nerves 



F 



