1866.] GTJPPT WEST INDIAN ECHINODERMS. 297 



general monograph of Tertiary Brachiopoda is consequently a great 

 desideratum. 



With regard to the special subject of Mr. Guppy's paper, the 

 author is quite correct while observing ^' that the evidence furnished 

 by the Brachiopoda now described can hardly be considered to throw 

 much new light upon the question, as they seem indeed, to be sug- 

 gestive of Cretaceous affinities ; " but I might add that their shapes 

 are not, however, inconsistent with what we might likewise expect 

 to find in Tertiary formations. 



Terehratula Trinitatensis and T. lecta of Guppy are not known to 

 me as Miocene shells, and may be new ; but it must be confessed 

 that T. carneoides, Guppy, strongly recalls to my mind the Cretaceous 

 T. carnea, as well as the recent T. vitrea. Indeed the shell now 

 termed T. carneoides seemed to me identical in shape and foramen 

 with that of many Cretaceous specimens of T. carnea, as well as of 

 the recent T. vitrea ; and it may be asked whether T. vitrea and T. 

 carnea are really distinct species. Their shapes are very often 

 identical and undistinguishable, their interiors so likewise ; and we 

 find similar shells, identified as T. vitrea by Philippi and Sequenza, 

 from the Miocene, Pliocene, and Pleistocene beds of Sicily. 



I may here suggest the hope that further researches may be made 

 in connexion with the beds and fossils in question, as it is always 

 hazardous to describe so-called new species from the study of a few 

 specimens, and especially so when the forms are undescribed. 



EXPLANATION OF PLATE XIX. figs. 1-3. 

 (Illustrative of Tertiary Brachiopoda from Trinidad.) 



Figs. \a,\h. Terehratula Trinitatensis, Guppy. 



2. carpeoides, Guppy, 



3. lecta, Guppy. 



3. On Tertiary Echinoderms from the West Indies. 

 By R. J. Lechmere Gtjppt, Esq., Civil Service, Trinidad. 



(Communicated by the Assistant- Secretary.) 



[Plate XIX. figs. 4-8.] 



§ 1. General Remarks. 



The Corals of the Miocene formations of the West Indies having 

 been made known by the researches of Mr. Lonsdale and Dr. Duncan, 

 the SheUs having been in part described by Messrs. Carrick, Moore, 

 and Sowerby, and a notice of the Foraminifera having been given by 

 Professor Rupert Jones, I propose to bring under the notice of the 

 Geological Society the Echinoderms belonging to the same fauna. 



The Echinoderms about to be noticed are found in the island of 

 AnguiUa, and in Trinidad, associated with remains which leave little 

 doubt of their Miocene age. Two of them are identical with Maltese 

 species, and three more are found living in the West Indian seas. 



VOL. xxii. — part i. y 



