118 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
Vaughan = D. erassolamellosa, Duncan (non Edward and Haime) ?; 
*Multicolumnastrea cyathiformis, (Duncan) = Heliastrea exsculpta, 
Duncan (non Reuss) and Heliastreea cyathiformis Duncan.! Cyathoseris 
haidingeri, Duncan (non Reuss)*; Porites reussiana, Duncan?; Lepto- 
phyllia agassizi, Vaughan. 
Echinodermata : Salenia, 
Conchifera : Pteroceras?; Nerinea®; Cerithium ?; Turritella?; Ac- 
teonella?; Natica®; Amauropsis ()°; Pleurotomaria (1) ?; Ostrea *; 
Pecten*; Inoceramus 5; Lithodomus®; Pholadomya ê; Barrettia mono- 
lifera, Woodward *; Radiolites adherans, *R. rudis, R. cancellatus, R. 
macroplicatus, R. annulosus, Whitfield 5; *Caprina jamaicensis, Whit- 
field*; Caprinella quadrangularis *; Caprinella occidentalis, Whitfield *; 
*Caprinella gigantea, Whitfield.® 
Fossils marked with an asterisk are also reported from Cambridge 
beds. 
This fauna is peculiar in its generic association, the numerical prepon- 
derance of Rudistes and corals, the sparse representation of Pelecypoda, 
and the almost complete absence of Echini, Cephalopoda, and Brachio- 
poda, which so largely prevail in the Marine Cretaceous, and its general 
dissimilarity to Cretaceous faunas elsewhere than in the Great Antilles. 
Foraminifera abound in the rocks of the Jamaican soquenco from tho 
limestone beds of the lower Blue Mountain Series” to the present, and 
living forms occur in great quantities in the surrounding waters, The 
fossil forms which will be frequently alluded to in this paper are of 
many species ; some are of great diagnostic value, especially the species 
of Orbitoides and Nummulina, which, as will be shown, are only found 
doubtfully in the uppermost Cretaceous and Eocene (old usage) beds 
of the island. A correct appreciation of the stratigraphic occurrence of 
these and the other Foraminifera in the Jamaican sequence has been 
greatly confused in literature by the writings of W. J. L. Guppy, wb. 
published that they all came from beds of the Miocene age. Inasmuch 
as his deductions have seriously misled other authorities, like Jones, 
1 Identified by T. W, Vaughan. Collected by Robert T. Hill, except the Cyatho 
seris haidingeri. 
2 Identified by Duncan. Collected by Jamaican Surveys. 
3 Identified by T. W. Stanton. Collected by Robert T. Hill. 
4 Identified by Woodward. Collected by Jamaican Surveys. 
5 [dentifled by Etheridge. Collected by Jamaican Surveys. 
6 Identified by Whitfield. Collected by Nichols. 
7 The conditions of formation of the lower part of the Blue Mountain Serie? 
were in general unfavorable for their occurrence. 
