bulletin: museum of comparative zoology. 



PAGE 



The Fauna of the Richmond Beds .... 125 



The Corals ... 126 



Occurrence of Rudistes in the Eocene 127 



Tlie Fauna of the Cambridge Formation 127 



Peculiar Mixture of Cretaceous and Eocene Genera . . . 127 



TJie Fossils of the Catadupa Beds 128 



Foraminifera * 128 



Species of Corals, Echinoderms, and MoUusks . . . 128 



Collection from Cambridge Station 128 



The Chapelton Beds Fauna 129 



The Port Antonio Collection 130 



Fossil Mammal from the Cambridge Formation 131 



Conclusions on the Cambridge Fauna 131 



Orbitoides in the Jamaican Eocene 132 



Vaughan's Studies of the Cambridge Corals .... 133 



New Species of MoUusca mentioned 133 



Explanation of Mixture of Cretaceous and Eocene Spe- 

 cies in the Cambridge Beds 134 



Inadequacy of the " Rolled Specimen " Hypothesis . . 135 

 Dissimilarity between Eocene Faunas of Jamaica and 



the Continental Margin 136 



Fossils of the Montpelier Formation 137 



Previous erroneous References of Fossils to the White Lime- 

 stones of Jamaica 137 



Paucity of other than microscopic Forms in the Montpelier 



Beds 138 



Scarcity of Radiolaria in the Jamaican Rocks ..... 1.38 



Predominance of Foraminifera in the Montpelier Formation 138 



Bagg's Determinations of the Montpelier Foraminifera . . 138 



Globigerinal Rocks 139 



The Occurrence of Orbitoides and Nummulina? 140 



Fossils of the Moneague Formation 141 



Reappearance of Mollusca .... 142 



R('suine of tlie Occurrence of Orbitoides in the Jamaican Sequence 143 

 Influence of the Mid-Tertiary orogenic Hevolution in changing 

 the Faimas of the Jamaican Littoral from Insular to Conti- 

 nental Forms 144 



Fauna of the Bowden Beds 145 



Occurrence of the Fossils in impure Sediments instead of 



White Limestones as hitherto alleged 145 



Definite Locality of the Bowden Oligocene Fossils hitherto 



ascribed to the Miocene of Jamaica 140 



Beauty, Number, and Preservation of the Fossils .... 147 



Appearance of new Genera of Foraminifera 147 



l^igg's Determinations of the same 148 



Notes on the Species 149 



Abundance of simple Corals 149 



Vaughan's Determinations of Species and his Notes 



thereon 149 



Abuiulance of the Mollusca. Need of systematic Study . 150 



Pteropods of the Bowden Beds 151 



