1901.1 



ANATOMY OF RHYNCH£A. 



59] 



But it nevertheless presents certain small differences from the 

 various genera with which I ha\e been able to compare it. The 

 proportions of the cranial to the facial regions of the skull are 

 much those of ffimantopus, Two features of some systematic 

 importance can be noted on a dorsal inspection of the skull of 



Text-tisf. 59. 



Text-tig. (30. 



Text-fig. 69. Skull of Rhynch&a copensis, ventral aspect. X 2. 

 Text-fig. <"><>.— „ „ .. dorsal aspect. X 2. 



Bkynehcea. In the first place, the region of the skull lying between 

 the orbits ; < narrow, the frontals being here much reduced in 

 breadth. Nor can any impressions of the supraorbital glands be 

 seen upon these bones. Such impressions are universal among the 

 Limicolse, if we omil certain forms whose exact position in the 



39* 



