IV 



CONTENTS. 



PAGE 



Systematic Descriptions Continued. 

 Suborder Spatangina Continued. 

 Family Nucleolitidae Continued. 



Echinolampas Continued. 



E. anguillae Cotteau 66 



Family Plesiospatangidae 67 



Asterostoma .... ... 67 



A. excentricum (Lamarck) . . . 67 



A. cubense Cotteau 67 



Pseudasterostoma 68 



P. jimenoi (Cotteau) ... .68 



Family Echinocorythidse 69 



Cardiaster .69 



C. cubensis, sp. nov 69 



Family Hemiasteridae 70 



Agassizia 70 



A. inflata, sp. nov 70 



A. clevei, Cotteau 71 



Prenaster 72 



P. loveni Cotteau . .72 



Hemiaster 



H. cubensis (d'Orbigny) .... 



H. antillensis Cotteau 73 



H. dewalquei Cotteau 73 



H. berkeyi, sp. nov 73 



Paraster 74 



P. antillarum (Cotteau) 75 



P. parkinsoni (Def ranee) 76 



P. clevei (Cotteau) 76 



P. loveni (Cotteau) ... .77 



P. subcylindricus (Cotteau) .... 78 



P. sp. a 79 



P. sp. b 79 



Periaster 80 



P. elongatus Cotteau 80 



PAGE 



Systematic Descriptions Continued. 

 Suborder Spatangina Continued. 

 Family Hemiasteridae Continued. 



Schizaster 81 



S. scillae Agassiz 81 



Family Spatangidae 81 



Brissopsis 81 



B. jimenoi Cotteau 81 



B. atlantica Mortensen 81 



B. antillarum Cotteau 82 



Plagiobrissus 83 



P. loveni (Cotteau) 83 



Macropneustes 84 



M. clevei (Cotteau) 84 



M. antillarum (Cotteau) 85 



Brissus 86 



B. brissus (Leske) 87 



B. exiguus Cotteau 87 



Eupatagus 88 



E. grandiflorus (Cotteau) 89 



E. sp. a 90 



E. clevei (Cotteau) 90 



E. antillarum (Cotteau) 91 



E. depressus, sp. nov 93 



E. abruptus (Gregory) 94 



E. cubensis (Cotteau) 94 



E. elegans, sp. nov 94 



E. vaughani, sp. nov 96 



E. sp. b 97 



Breynia 97 



B. cubensis Cotteau 97 



Bibliography 99 



Description of Plates 100 



STRATIGRAPHIC SIGNIFICANCE OF THE SPECIES OF WEST INDIAN FOSSIL ECHINI, 



BY THOMAS WAYLAND VAUGHAN 



PAGE 



Recent Papers on Geologic Correlations of 



West Indian Tertiary Deposits 107 



Recent Papers on West Indian Palaeontology . 108 

 Tentative correlation table of the Tertiary 

 Sedimentary formations of Dominican Re- 

 public .109 



Cretaceous Species 110 



Eocene Species Ill 



PAGE 



Oligocene 112 



Middle Oligocene . .112 



Upper Oligocene 113 



Post-Eocene Tertiary Echinoids of Cuba ... 114 



Tertiary Echinoids from Porto Rico 117 



Tertiary Echinoids from Barbados 119 



Miocene 119 



Post-Miocene Echinoids 122 



Species of Established Stratigraphic Value . 122 



