CONTENTS. 



Page. 



General description of the Tres Marias Islands, Mexico. By E. W. Nelson 7 



Mammals of the Tres Marias Islands. By E. W. Nelson 15 



Birds of the Tres Marias Islands. By E. W. Nelson 21 



Reptiles of the Tres Marias Islands. By Leouhard Stejneger 63 



Notes on Crustacea of the Tres Marias Islands. By Mary J. Rathbun 73 



Plants nf the Tres Marias Islands. By J. N. Rose 77 



Partial Bibliography of the Tres Marias Islands. By E. W. Nelson 93 



ILLUSTRATIONS. 



PLATE. 

 Map of the Tres Marias Islands Frontispiece. 



FIGURES. 



Page. 



1. Erytlirina Janata Rose 81 



2. Euphorbia nehoni MillspaiigU 89 



5 



