326 



Mr. P. R. Lowe on the Crab-Plover. 



In the Skuas, as I have previovisly pointed out {' Ibis/ 

 1916, p. 140) the arrangement of the temporal grooves is 

 not at all larine, but is closely similar to what is seen in 

 Squatarola or Pluvialis, although in Megalestris there is a 

 considerable extension towards the mid-region. 



Text-figure 10. 



Dorsal view of the skulls of 

 A. Dramas ardeola ; B. Larus canus. 



In Dromas there is an indication of a sagittal groove down 

 the centre of the fron to-parietal region, much as is seen in 

 Larus ; but the same condition is to be noted in Charadrius 

 and Hcematopus. 



