STRATIGRAPHIC SIGNIFICANCE OF THE SPECIES. 



119 



TERTIARY ECHINOIDS FROM BARBADOS. 



Two species of Tertiary echinoids are known from the Bissex Hill 

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

 lampas anguilla 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. 



Names of species. 



Gurabo 

 formation, 

 Dominican 



Republic. 



La Cruz marl, 

 Cuba. 



Miscellaneous 

 localities. 



Cidaris melitensis Wright 



tribuloides (Lamarck) . . 

 Echinopedina cubensis Cotteau . 

 Echinometra prisca Cotteau . . . 



(?) 

 '(?)' 



? Clypeaster rosaceus (Linne) , 



caudatus Jackson . 



? dalli (Twitchell) . . 



? cubensis Cotteau. 



? Encope ciae de Cortazar 



? latus Jackson 



Mellita sp. 



Echinoneus cyclostomus Leske. . . 

 ? Paraster parkinsoni (Defrance) . 



? Schizaster scillae Agassiz 



? Brissopsis jimenoi Cotteau 



? Brissus exiguus Cotteau 



(?) 



Also Anguilla formation; 

 Mayo Village, Trinidad. 



Cienfuegos, Cuba. 



Also Anguilla formation; 



Guanica Harbor, Porto 



Rico, Cuba. 

 Bellamar, Matanzas, Cuba; 



Ponce limestone, Porto 



Rico. 

 This may come from the 



Mao Adentro limestone. 

 Gato, Dominican Republic. 

 Matanzas, Cuba. 

 Calabazar, Cuba. 

 "Arecibo" limestone, Porto 



Rico. 

 Mayo Village quarry, Trin- 

 idad. 

 Also Anguilla formation. 

 Matanzas, Cuba. 

 Cienfuegos, Cuba. 

 Cienfuegos, Cuba. 

 Trinidad. 



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 anguilla, 

 which had escaped my notice. 



