A. Mud flat at Portsmouth (station 112) adjoining the Indian River. Pterocarpus officinalis 

 (right foreground), Montrichardia arborescens (right middieground), and the fern Acro- 

 stichum daneaefolium (left foreground and background) are among the most conspicuous 

 elements of the flora. Goniopsis cruentata, at least two species of the genus Uca, and 

 Ucides cordatus constitute the dominant components of the decapod fauna. Callinectes 

 bocourti occurs in the water, and Sesarma viiersii (?) and Cardisoma guanhumi inhabit 

 the margins of the flat. (Hobbs' photo.) 



B. Floodplain at the mouth of the La\'ou Ri\cr (station 6) planted in coconuts and bananas. 

 The better drained areas (foreground) support large colonies of Cardisoma guanhumi, 

 and populations of L ca burgersi and I cides cordatus occupy the wetter portions; Coenobita 

 clypeatus and Sesarma roberti also are found here in abundance. (Hobbs' photo.) 



