2 University of Michigan 



river, in the rainy season bnt little above the high tide level, 

 and of ridges of sand reaching a height of lOO feet. The 

 vegetation apparently had been disturbed but little. From the 

 rivcr bank associations (elephant grass, mocca-moccas, and 

 prickly shrubs and palms) to the foot of the sand reefs the 

 lowland was covered with a dense forest among the conspicu- 

 ous trees of which were the mora, trumpet-tree, tree-fern, and 

 many palms. The clearings were small and widely separated 

 and in many places had been allowed to revert partly or en- 

 tirely to the forest. The slopes of the sand reefs were also 

 heavily forested but with a more open association, the mora. 

 greenheart and wallabas being the conspicuous trees. On the 

 higher parts of the reefs the forest was composed of tall slend- 

 er trees (the spar-bush of the nativ<;sj, of stunted, scraggly 

 trees and bushes about the open areas, or it was replaced by 

 open areas of sand, locally known as mouries. The mouries 

 were covered by a scanty growth of grasses, low bushes, plants 

 with a heath-like growth habit, and xerophytic mosses and 

 lichens, and supported thickets of stunted trees and shrubs (in 

 which the clusias and figs were conspicuous) widely separated 

 or so close together that the open areas formed narrow wind- 

 ing ways. 



Unfortunately the breeding season of most of the species 

 of amphibians was apparently over by July 14, but data on 

 the breeding of some forms were obtained. The work was 

 done intensively, an efifort being made to obtain as manv 

 species as possible and series of specimens of each form with 

 data on habitat distribution and coloration in life. The colors 

 were obtained by comparison with RidgAvay's "Color Stand- 

 ards and Color Xomenclatiu-e." 



