PLATE 2. 
Fig. 1.— Amblycephalus chinensis, sp. nov. Type M. C. Z. No. 7326. Luluping, western Szechwan. 
Page 132. 
Fig. 2.— Agkistrodon blomhoffii brevicaudatus Stejneger. Page 132. 
Fig. 3. Agkistrodon tibetanus, sp. nov. Type M. C. Z. No. 7327. Ramala Pass beyond Tachienlu, 
western Szechwan. Page 133. 
Fig. 4— The same. 
