52 



AUSTRALIAN SNAKES. 



pf: P 



S.O P 



C .S V,R 



AP 



S.C. 



R. KOSTRAL. 



K. Nasals. 



I.N. Internasals. 



P.F. Prefrontals. 



F. Frontal. 



S.O. Supraoculars. 



P.O Preoculars. 



Pst. 0. POSTOCULARS. 



p. Parietals. 



T. Temporals. 



U.L. Upper Labials. 



L.L. Lower Labials, 



C.S. Chin Shields. 



y.P. Ventral Plates. 



A. P. Anal Plate. 



S.C. Sub-caudals. 



The anal plate and the sub-caiidals: are sometimes 



entire and sometimes divided, the latter character being 

 shown in the cut. 



