﻿GENERAL DESCRIPTION OF THE TRES MARIAS ISLANDS. 13 



PLANTS DESCKIBED FROM THE TRES MARIAS. 



j^gipliila pacifica Greenman. 

 JBeJoperone nelsoni Greenman. 

 Buxus pubescens Greenman. 

 Cordia insularis Greenman. 

 Erijthrina lanata Rose sp. nov. (also on 



mainland). 

 EuphorUa nelsoni Millspaugli. 

 Euphot'Ma subccerulea tresmariw Millsp. 



var. nov. 



SUMMARY 



Gilihertia insularis Rose sp. nov. 

 Pilocarpus insularis Rose sp. nov. 

 Ternostroemia maltbya Rose sp.nov. (also 



on mainland). 

 Zanthoxylum insularis Rose sp. nov. 

 Zanthoxylum nelsoni Rose sp. nov. 



The following statement shows the number of species of animals and 

 l)lants now known from the Tres Marias : 



Land mammals 11 



Birds 83 



Reptiles 18 



Fresh-water fish 2 



Fresh- water shrimp 1 



Land mollusks 6 



Plants 136 



ACKNOWLEDGMENTS. 



Much of the value of this report is due to the cordial cooperation of 

 several eminent specialists. Throiigh the courtesy of Mr. F. V. Ooville, 

 curator of the National Herbarium, Dr. J. K. Rose, assistant curator, 

 was enabled to prepare the report on the plants. Dr. Leonhard Stej- 

 neger, curator of the division of reptiles of the National Museum, 

 Dr. William H. Dall, honorary curator of the division of conchology, 

 and Miss Mary J. Eathbun, assistant in the division of invertebrates, 

 reported on the Tres Marias material; and Prof. B. W. Evermann, 

 ichthyologist of the United States Fish Commission, kindly identified 

 the collection of fishes from the islands and the adjacent mainland. 

 Finally, I wish to express my great indebtedness to Mr. Robert Ridg- 

 way, curator, and Dr. Charles W. Richmond, assistant curator, of the 

 division of birds in the National Museum, for having so freely i)laced 

 at my disposal, not only the material in their charge but also their 

 knowledge of tropical American birds. 



