An Annotated List of Formosan Snakes, with Descriptions 

 of Four New Species and One New Subspecies. 



By 



Masainitsii Oshima, 



iiureau of Scientific Rescarche;, Taihoku, Formosa. 



In Dr. Stejneger's " Herpetology of Japan and Adjacent Territory " 

 (published in 1907), there are mentioned in all 29 species of snakes 

 as be!ng known from the island of Formosa. My studies on Formosan 

 snakes from specimens contained in the Formosan Museum at Taihoku 

 (or Taipeh) and in the collection of the Medical School as well as in 

 that of the Bureau of Scientific Researches in the same city, have enabled 

 me to make 12 additions to the list. Of that number, I consider 5, 

 viz., 4 species and 1 subspecies, to be new to science. In the follow- 

 ing I propose to give a complete list of the Formosan snake fauna as 

 known at present, together with descriptions of the new forms and 

 with what notes and measurements I have taken from specimens of 

 those already known. In the systematic arrangement I have followed 

 Dr. Stejneger. 



Here I beg to tender my thanks to Prof. Ijima and Mr. Namiye 

 for assistance in various ways. My thanks are also due to Mr. 

 Kawakami of the Formosan Museum and to Mr. Horiuchi of the 

 Medical School for permissions to examine the specimens under 

 their care. 



