120 



MB. R. GURNEY ON LEANDER LONGIROSTRIS 



Modification of the Pleopods for egg-bearing in Leander and 

 Palsemonetes. 



The pleopocla of the British prawns (I have not been able to 

 examine L. adspersus in this respect) are subject to special 

 modification for the purpose of egg-bearing which, so far as I can 

 find, has not been previously referred to. 



Text-figure 5. 



Second pleopod of female. 



A. L. squilla after moult following hatching- of eggs, 



B. The same, proximal inner corner more enlarged. 

 C i. squilla. Moulted skin after hatching of eggs. 

 T). i. longirostris. Before laying of eggs. 



