Numiu;r8. April 25, 1915. 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan. Pubushed by the University, 



THE REPTILES AND AMPHIBIANS COLLECTED IN 

 NORTHEASTERN NEVADA BY THE WALKER- 

 NEWCOMB EXPEDITION OF THE UNI- 

 VERSITY OF MICHIGAN. 



By Alexander G. Ruthven and Helen Thompson Gaige. 



In the summer of 1912, the Museum was enabled, through 

 the generosity of two of the honorary curators, Dr. Br}-ant 

 Walker and Dr. W. W. Newcomb, to send an expedition to 

 northeastern Nevada for zoological material needed in the 

 study series. The party consisted of Frederick M. Gaige, 

 Helen Thompson Gaige and Crystal Thompson, scientific as- 

 sistants in the Museum, and the Director, in charge. All of 

 July and the greater part of August was spent in the field, 

 and the groups given the most attention were reptiles, amphi- 

 bians, molluscs, crustaceans and ants. The study of the rep- 



SciENTiFic Papers of the University of Michigan No. 9. 



