158 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.2 



LITERATURE CITED 



Baylis, H. a. and R. Daubney 



1926. A synopsis of the families and genera of Nematoda. 



Chitwood, B. G. and Everett E. Wehr 



1935. The value of cephalic structures in nematode classification, with 

 special reference to the superfamily SPIRUROIDEA. Zeit. Parasit., 

 7:273-335. 



Ortlepp, R. J. 



1935. On some South African reptilian oxyurids. Onderstepoort Journ. Vet. 

 Sci. Animal Ind., 1:99-114. 



Sandground, J. H. 



1929. Some new parasitic nematodes from Yucatan (Mexico), including a 

 new genus of strongyle from cattle. Bui. Mus. Comp. Zool. Harvard, 

 69:523-524. 



Thapar, G. S. 



1925. Studies on the Oxyurid parasites of reptiles. Jour. Helmin., 3:83-150. 



YoRKE, W., and P. A. Maplestone 



1926. The nematode parasites of vertebrates. 



