STRATIGRAPHIC SIGNIFICANCE OF THE SPECIES. 



119 



TERTIARY ECHINOIDS FROM j RARE ADOS. 



Two species of Tertiary echinoids are known from the Bissex Hill 

 formation of Barbados, viz, Eupatagus abruptus (Gregory) and Echino- 

 lampas anguillce Cotteau. 1 Because of the presence of Echinolampas 

 anguilla in it, the Bissex Hill formation may be confidently referred 

 to the Oligocene, but whether middle or upper can not be decided 

 from present evidence. A note on another species of Eupatagas from 

 Barbados appears on page 3. 



MIOCENE. 



List of species from the West Indies Miocene. 



Examination of this list reveals that only four species of echinoids 

 are definitely known from the West Indian Miocene. These are: 



Cidaris melitensis Wright, Mayo Village, Trinidad. 



Echinopedina cubensis Cotteau, Gurabo formation, Dominican Republic. 



Clypeaster caudatus Jackson, Gurabo formation or Mao Adentro limestone, 



Dominican Republic. 

 Mellita sp., Mayo Village, Trinidad. 



1 R. J. L. Guppy, on the geology of Antigua and other West Indian Islands, with references 

 to the physical history of the Caribbean region: Geol. Soc. London Quart. Jour., vol. 67, p. 

 692, 1911. I am indebted to Sir J. B. Harrison for this reference to Echinolampas anguillas, 

 which had escaped my notice. 



