134 SOME CHINESE VERTEBRATES. 



on the extremities of the ventrals; between these two series of spots runs a 

 zigzag black continuous band. On top of the head there is a dark blotch running 

 from the edge of the frontal to a band from eye along neck. A rough horseshoe- 

 shaped mark on the nape of the neck with the bow directed forward. The 

 figures of this example compared with one of A. b. brevicaudus Stejneger show 

 how radical is the difference in type of marking between the two forms, as well 

 as the other divergences. 



When showing the type of this species to Dr. Stejneger, he at once confirmed 

 my decision to describe it as new, and remarked that he did not believe it to be 

 very nearly related to any of the described forms, but to represent. a species by 

 far the most primitive of any in the genus. This is, of course, exactly what one 

 might suppose would be the case with a form coming from the habitat of A. 

 tibetanus. 



AGAMIDAE. 

 JAPALURA YUNNANENSIS Anderson. 



ANDERSON, Zool. W. Yunnan, 1878, p. 803, pi. 66, fig. 2. 

 BOULENGER, Cat. lizards Brit, mus., 1885, 1, p. 310. 



Five specimens taken among Cacti on the sandy shores of the Tung River 

 in western Szechwan. These show no essential differences from Anderson's 

 figure except that in none of these examples, and one is an adult male, do the 

 spines of the weak nuchal crest reach the length which his figure shows. For 

 in that three or four spines on the nape have a length almost equalling the 

 diameter of the orbit, in none of these is the length one third as great. The 

 types came from Momein or Tengyuehchow in western Yunnan. Swinhoe 

 has collected the species in Szechwan. 



SCINCIDAE. 

 ETJMECES XANTHI Giinther. 



GATHER, Ann. mag. nat. hist., 1889, ser. 6, 4, p. 220. 



A single specimen from Ichang, the type locality and the only one from 

 whence the species has been reported, differs somewhat from the original descrip- 

 tion. There is only one loreal, which, however, forms a suture with the fronto- 

 nasals. There is also only one pair of nuchals. The second azygos postmental 

 is separated from the first by the meeting on the median line of a pair of large 



