REPTILES FROM WEST AFRICA 



203 



287 annuii on the l)ody, 13 on the tail; an annulus on the body 

 contains 16 segment, 8 ai)ove and 8 l)elow the lateral lines, the 

 two median ventrals twice and a half as broad as long. Verteljral 

 and lateral grooves distinct. Six anal segments, median pair very 

 large; 10 proeanal pores. Colourless. 



Total length 140 millim. , tail 10. 



A single specimen from Fernand Vaz, French Congo. 



l?la.cog-astei* g. n. 



Only eleven shields on the upper side of the head. A single 

 series of broad ventral shields. Otherwise as in Amphishaena, 

 of which it should possibly l)e regarded as merely a subgenus. 



2o. Placogaster feae, sp. n. 



This species may be regarded as an exaggeration of the type 

 known as Amphisbaena (Ophlopy^ocfes) liber iemis, Blgr., with 

 which it agrees in the- absence of frontal shields but differs in 

 the fusion of the ocular with the large paired shield which covers 





PI 









ojojo/ jj 



























I 





Fig. 3. 



Three aspects of head and anal region. 



the whole of the snout in addition to the small azygous rostral, 

 in the fusion of the occipitals with the postfrontals , and in the 

 fusion into one of the two broad ventral segments of each annulus 

 on the ]x)dy. 2o2 to 2o8 annuii on the body, 9 to 24 on the 



