CONTENTS. XI 



Decapod Crustaceans from the Panama Region — Continued. 



Descriptions of Species — Continued. Page. 



Caiappa costaricana 156 



fiammea 157 



zurcheri 157 



Calappella quadrispina 157 



Mursia macdonaldi 158 



obscura 159 



Mursilia ecristata 160 



Leucosilia jurinei 161 



bananensis 161 



Leucosiidae, genus and species indeterminable 162 



Callinectes declivis 162 



reticulatus 163 



species 164 



Arenaeus, species 165 



Euphylax caliinectias 165 



fortis 167 



Gatunia proavita 168 



Carpilius, species 171 



Heteractaea lunata 171 



Panopeus antepurpureus 172 



tridentatus 172 



species 173 



Eurytium crenulatum 174 



Euryplax culebrensis 174 



Thaumastoplax prima 176 



Cardisoma guanhumi 177 



Uca macrodactylus 177 



Brachyrhyncha, family, genus, and species indeterminable 177 



Brachyrhyncha, family, genus, and species indeterminable 178 



Parthenope panamensis 178 



pleistocenica 179 



Explanation of plates 179 



Index i 



Cirripedia from the Panama Canal Zone. By Henry A. Pilsbry 185 



Balanus eburneus 185 



glyptopoma 185 



concavus rariseptatus 186 



(Hesperibalanus?), species 187 



Lepas injudicata 188 



Explanation of plate 188 



Fossil Corals from Central America, Cuba, and Porto Rico, with an 

 Account of the American Tertiary, Pleistocene, and Recent Coral 



Reefs. By Thomas Wayland Vaughan 189 



Introduction 189 



Geologic correlation by means of fossil corals 190 



Geologic history of the upper Eocene and later coral faunas of Central 



America, the West Indies, and the eastern United States 193 



Eocene 193 



Brito formation, Nicaragua 193 



St. Bartholomew limestone 193 



Jackson formation and Ocala limestone 195 



Concluding; remarks on the Eocene 198 



