1866.] GTJPPT —WEST INDIAN ECHINODEKMS. 299 



are of Miocene age. And it is not surprising, after the researclies of 

 Dr. Duncan and Professor Eupert Jones, to find so remarkable an 

 alliance with the Maltese beds. Prom the evidence furnished by 

 the organic remains, I have been led to consider the Anguilla and 

 San Fernando beds as probably somewhat older than the middle 

 Tertiaries of Jamaica, Cumana, and San Domingo, and I have men- 

 tioned this part of the subject in mj paper '' On the Tertiary Mollusca 

 of Jamaica." Only two or three species appear, as far as my re- 

 searches have gone, to pass through the entire Miocene ; nevertheless 

 the whole fauna is so closely connected throughout by intermediate 

 links, that the separation of the West Indian Miocene into upper and 

 lower, can only be eifected in a general way. 



§ 2. Description of the Species. 



1. CiDAEis MELiTENSis (Forbcs), Wright. 



Wright, Ann. & Mag. Nat. Hist. 2nd ser. vol. xv. p. 107, pi. 4. 

 fig.l. 



Locality, Anguilla. 



2. EcHiNOMETEA ACTJFERA, Blaiuville. 



The fossils only differ from the recent examples in that the former 

 are smaller ; but they agree perfectly with living examples of the 

 same size. 



Anguilla. 



3. Clype ASTER ELLiPTiCTjs, Michclin. 



Michelin, Monogr. des Clypeastres fossiles (Mem. Soc. Geol. de 

 France, 2nd ser. tome 7), p. 109, pi. 12. 



" This species, near to C. rosaceus, differs from it in that it is less 

 elevated, has no marginal sinuosities, and that its ambulacra are 

 rather elongate than rounded towards the base" (Michelin, I.e.). 

 It appears to me to be more nearly related to C. australasia, Gray, 

 than to C. rosaceus, and I have had some doubt whether it ought 

 to be accounted distinct or not. It agrees with C. australasia, in 

 having the base concave from the margins, and in others respects in 

 which these species differ from C. rosaceus. 



This is a common species at AnguiUa. I am not aware of the age 

 of the deposit from which Michelin obtained his fossil. 



4. ECHINOLAMPAS SEMIORBIS, SpCC. nOV. PI. XIX. fig. 7. 



Test large, discoidal, nearly circular, very slightly wider behind 

 than before, subcorneal; ambulacral summit nearly central; ambulacra 

 not petaloid, extending nearly to the margins ; single ambulacrum 

 scarcely narrower than the others ; poriferous avenues about one- 

 fourth the width of the interporiferous areas; base somewhat concave, 

 slightly swollen in the interambulacral spaces ; oral aperture large, 

 transverse, nearly central, with deep notches opposite the terminations 

 of the rows of pores. Anus large, transverse, close beneath the 

 margin. 



y2 



