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procured by myself from Anguilla I affixed, in 1865, a speci- 

 men of a spine identical with C. anguilla, Cott. 

 Miocene, Anguilla. 



2. Cidaris loveni, Cott. 



Cotteau, Echinides tertiaires de S. Barts and Anguilla, 

 p. 10, pi. L, f. 11 — 14. 



Though very near to C. melite?isis, this species appears 

 to be characterized by good and permanent differences. 



3. Echinometra prisca, Cotteau. 



Cotteau, Echinides tertiaires, p. 12, pi. i., f. 19 — 27. 



The specimens are similar in all respects to those 

 recorded by me (Journ. Geol. Soc, vol. xxii., p. 299), as 

 Ech. acufera, and perhaps differ sufficiently from the 

 recent form to be under the circumstances entitled to a 

 recognition as of specific rank. 



4. Echinoneus minor, Leske. 



Cotteau, Echinides tert., p. 14, pi. 1., f. 28 — 30. 



M. Cotteau does not give a specific name to this. It 

 is probably the same as the Ech. cyclostomus of my paper, 

 for which, however, the name Ech. minor may be pre- 

 ferable. 



5. Clypeaster antillarum, Cotteau. 



Cotteau, Echinides tert., p. 15, pi. ii., f. 1 — 3. 



In M. Cotteau' s paper this is stated to be from 

 Anguilla, but the label assigns the species to Portorico, 

 and I am inclined to the belief that the latter is correct. 



6. Clypeaster concavus, Cotteau. 



Cotteau, Echinides tert., p. 16, pi. ii., f. 4—8. 

 In my account of the Westindian fossil Echinidse I 

 considered this to be the Clyp. ellipticus of Michelin. 

 Cotteau disagrees with this view, and gives the name of 



