98 



ON TlIK TOL'OOilAPHY AND GEOLOGY 



This collection confirmed the results derived from the previous one, except that the 

 percentage of living species was reduced to 8 or 9 per cent, according to Mr, Moore, 

 who sums up the results as follows : . 



" 1st. These beds contain Mollusca of which from 8 to 9 per cent, are now living. 



" 2d. The recent species are principally living in the adjoining seas. ' 



" od. Many bear a strong resemblance to shells now living in the Indian seas and 

 the Pacific, and one or two appear to be identical. 



"4th. ISTone are identical with American fossil shells, except two, both of which 

 are also recent. 



" 5th. The fossils which present the nearest analogies as a group are those of 

 Malta and Bordeaux in Europe, and the Upper Eocene beds of South Cai'olina." 



In Trinidad the collections were made incidentally and apparently with little care. 

 On being submitted to Mr. Robert Etheridge, the able Palaeontologist of the British 

 Surveys, that gentleman found 8 species of corals, 1 echinoderm, 2 annelids, 3 

 cirrhipedes, 2 Crustacea, 64 mollusca (38 gasteropods, 25 bivalves, and 1 polyzoon) 

 and 3 fishes. Of these, 15 species are in common with the formation in Jamaica. It 

 is to be regretted that Mr. Etheridge did not make out a specific as well as a generic 

 determination, as a comparison with the Dominican series would have been instructive 

 and interesting. He says of the "]N^ewer Parien" which includes the above " Caroni 

 Series ;" "the fossil remains of this deposit resemble those of the Falunien or Miocene 

 age." , " 



In 1866 Mr. P. J. L. Guppy published a valuable paper on the Miocene fossils of 

 Jamaica,* in which he describes 61 species, many of them previously unknown. My 

 collections show that of the 61 species, all but 4 are also found in Santo Domingo.f 

 Mr. Guppy acquiesces in the general results arrived at by Mr. Moore, but difiers from 

 his fourth proposition so far as to identify the Petaloconclmis, with Lea's species, sctdp- 

 turatus. He says " among the new facts brought to light is the very remarkable 

 resemblance of a portion of the West Indian Miocene fauna to that of the Maltese 

 beds." A resemblance which however had been noticed before by Moore. His most 

 important generalization is a provisional classification of the Caribbean Tertiaries. 

 " From my examination of the Jamaica fossils I am of opinion that with the middle 



* Quart. Jour. Geol. Soc, Vol. XXII. p. 281. 



•|- I have not yet found Cyclostoma bicarinata, Neritina Woodwardi, Venus Woodwavdi, nor Cardiuna incon- 

 spicuum. 



