10 



FOSSIL ECHINI OF THE WEST INDIES. 



BARBADOS. 



Echinolampas anguillce Cotteau 1 and Eupatagus abruptus (Gregory) 2 

 are the only recognizable fossil species of Echini recorded from the 

 island of Barbados as far as discovered. 3 (Another species, see p. 3.) 



TRINIDAD. 



List of Fossil Echini occurring in the Island of Trinidad. 



Species. 



Cidaris melitensis Wright. A single spine only 



Peronella mirabilis, sp. nov 



Mellita sp 



Echinolampas ovumserpentis Guppy 



Paraster, sp. b 



Brissus exiguus Cotteau 



Eocene. 



X 



X 



Miocene. 



X 

 X 



Previously, only Echinolampas ovumserpentis was recorded from 

 Trinidad, which is the type locality for that species. The few Echini 

 recorded are in the U. S. National Museum, excepting Brissus exiguus, 

 which was recorded by Guppy in 1911. 



GEOLOGICAL DISTRIBUTION. 



The table of stratigraphic and geographic distribution of fossil 

 Echini in the West Indies includes all the species that I have had for 

 study, and in addition the species included in Cotteau's Spanish 

 report; species in Lambert's Report on West Indian Echini in the 

 British Museum; species described by Michelin, or species listed by 

 A. Agassiz as occurring fossil in the West Indies; also Echinolampas 

 anguillcB and Eupatagus abruptus (Gregory), from Barbados. It does 

 not include a few Echini from Jamaica, reported by Desor and by R. 

 T. Hill, for which see the list of Jamaica species (p. 6). It may be said 

 that the list is complete for the recognizable fossil species recorded, as 

 far as I am aware. 4 



Excepting where I have not had the species and the few cases marked 

 by references to foot-notes, there have been specimens in the collections 

 studied from each of the localities listed. 



Cotteau and Lambert in their publications did not recognize the 

 Oligocene as a formation, and it is known that some species they 

 refer to the Miocene should be referred to the Oligocene. 



i Guppy, R. J. L., Quart. Jour. Geol. Soc. London, vol. 67, p. 692, 1911. 



= Gregory, J. W., Quart. Jour. Geol. Soc. London, vol. 48, pp. 163-169, pi. 4, 1892. 



3 Gregory described Cystechinus crassus Gregory from the Radiolarian marls of Barbados 

 (1889, Quart. Jour. Geol. Soc. London, vol. 45, p. 640, figs. 1 to 3). This species is of such 

 doubtful relationship that it can not be inserted in the key, p. S3, and is omitted excepting for 

 this note. (See A. Agassiz, 1904, Mem. Mus. Comp. Zool., vol. 31, p. 157.) 



4 In foot-notes on page 9 are references to lists of West Indian fossil species of Echini that 

 seem to be unrecognizable. 



