460 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM, 



The niamushi occurs more or less frequently on the four principal 

 islands. Eastlake says that it "is most frequent in the neighborhood 

 of Kyoto, also the environs of Yokohama and the Hakone Mountains; 

 tolerably frequent in the north." In Yezo it was observed by Doctor 

 Fritze on the road to Kamigawa in the neighborhood of Soraclii-l)uto, 

 and the United States National Museum, thanks to the kindness of 

 Doctor Nozawa, has a specimen, which j^robably came from near 

 Sapporo. 



It seems to be common in the seven islands of Idzu, at least on 

 Hachijo shima, from which island the Science C\illege has six s])( ci- 

 mens, the majority of an unusual bright reddish color. 



Doctor Wall records two specimens from the islands south of 

 Kiusiu, namely, one from Yaku shima and one from Tanega ^hinla, 

 the former with 143, the latter with 142 ventrals, and both with 23 

 scale rows. 



Hoist collected specimens on Tsu -shima, which are now in British 



Museum. 



List of specirnens of Agkistrodon hlomhoffii. 



a 2 pairs of prefrontals. 



ftYoung of 15421; 2 pairs of prefrontals. 



c Young of 15421. 



d Description, p. 457; figs. ,362-364. 

 e2 pairs of pffefrontals. 



