272 bulletin: museum of comparative zoology. 



newer than the latter. The following notes in detail were made. I 

 would note that I have many uudescribed species from the West 

 Indian Oligocene, which horizon until lately, in common with others 

 who have written about it, I have called old or warm water Miocene. 

 The beds which I identified as Miocene from your Cuban collection are 

 also Oligocene. For this reason I am in many cases able to state that 

 the same species occur in both of two localities, while I caunot as yet 

 name it specifically. 



A. Empire and Vicinity. 



This limestone has the appearance of the Everglades limestone of 

 Florida and has in part been deposited or recrystallized from a solution, 

 perhaps of its own upper portion. It contains traces of corallines and 

 other obscure organisms, probably Foraminifera ; fish bones and one valve 

 of a Pecten, subgenus Janira. Neither of these is in a state to identify 

 more particularly, but the Pecten looks modern, and is probably not 

 older than the Eocene. 



B. Foraminifera! Shale or Marl. 



This contains a faint impress of a bivalve shell, perhaps a Cardium, 

 and many specimens of Orbitoides forbesii Cpr. This species is common 

 to the Eocene and Oligocene, being abundant in the Caroni beds * of Trini- 

 dad and the Bowden beds of Jamaica, 2 which have hitherto been refei-red 

 by everybody to the Miocene. If this bed was on top of the Gatun beds 

 they might easily be referred to the Claibornian, and this to the Vicks- 

 burg, or even higher. If, as I understand from your section, it is below 

 the Gatun beds, the Claibornian element in their fauna might possibly 

 be regarded as a survival. According to Mr. R. M. Bagg, I understand 

 this bed also contains Cristellaria lenticula Reuss, Bulimina ovata 

 d'Orb., Gaudryina reussi Stache, Sagrina striata Schn., and Trunca- 

 tulina sp., none of which is characteristic of any special horizon. 



1 In his earlier papers Mr. R. J. L. Guppy may have published this species as 

 being abundant in the Caroni beds of Trinidad, thereby misleading Dr. Dall. In 

 Guppy's latest publication, however, the position of Orbitoides forbesii Cpr., and its 

 associated foraminiferal fauna, is shown to belong to the lower lying, or Eocene, 

 Naparima beds. See Quart. Jour. Geol. Soc. London, Vol. XLVIII. pp. 519, 520, 

 523, 524, et seq. — R. T. H. 



2 Our researches in Jamaica, made since Dr. Dall's report was prepared, 

 together with careful study of the material by Prof. R. M. Bagg, show conclu- 

 sively that Orbitoides does not occur in the Bowden beds, their range being confined 

 to the lower horizons. — R. T. II. 



