new Species of {^\wy^oc\i\)Y\:^. 207 



There are forty teetli. 

 JIab. Garies, Namafjiialaii<l. 



Type. The type skull will he deposited in the South 

 African Museum and a co-type given to the British Museum. 



Chrysochloris te.nuiHy sp. n. 



This ?pecie3 is only represented hy two skulls, both slightly 

 impertect, from Garies. It differs from all the preceding 

 species in iiaving, like C. hotlentota, only thirty-six teeth, 

 and thus belongs to the subgenus Amhiysomiis. It differs, 

 however, from all the known species of Amhlysomns in 

 having a large jirotuberance encroaching on tiie tem[)oral 

 tbssa as in G. asiatica. 



Skull : greatest length 20'5 mm. ; basal length IG ; greatest 

 breadth li'O ; greatest height 10"2 ; interorbital width &5 ; 

 front of i' to back of m^ 9'6 ; palate across posterior pre- 

 molars 7'3. 



Ilab. Garies, Namaqualand. 



I'yjoe. Tiie type skull will be deposited in the South 

 African Museum and a co-type given to tiie British Museum. 



The following may be taken as a synopsis of the species, 

 omitting one or two imperfectly known and very doublfully 

 distinct forms : — 



Synopsis of the Species. 



I. Teeth 40. 



A. Bony projection on posterior wall of temporal 

 fossa; zygomatic arch small ; ratio of breadth 

 of ;*kull to length To to 80 : 100. 



a. Intt^rorbital region narrow. 



a'. Skull, breadth to length ratio over 80 : 100. C. asiatica, 



h' . Skull, breadtii to length ratio 75 : 100 .... C nainaqiiensis. 



b. Interorbital regicm e.vi)aiKled C. IVintuni. 



15. Bony projection on posterior wall of temporal 



fossa Very small or absent ; zygomatic arch 



small. 



a. Skull, breadth to length ratio 90: 100 C. Granti. 



h. Skull, breadth to length ratio 60: 100 C Sclateri. 



C. Bony projection on posterior wall of temporal 



fossa very small or absent ; zygomatic arch 



greatly expanded. 



a. Length of skull 33 ram C. rillosn. 



b. Length of skull 42 mm C. Treveli/ani. 



IL Teeth 36. 



A. Bony projection on posterior wall of temporal 



fussa ; ratio of skull breadth to length f33 : 100. . C. tenuis. 



