576 



PROCEEDIN-GS OF THE GEOLOGICAL SOCIETY. [JlUie 20, 



give a list of the fossils determined by me. The Moruga series is 

 classified with the Caroni series by the Geological Survey of the West 

 Indies; but I have no information as to its fossil contents, beyond the 

 list of genera given in the Eeport. The following species are from 

 the Caroni series at Savanetta on the Parian side of the island : — 



Turbinellus ovoideus, Kien. 

 Solarium quadriseriatum, Sow. 

 Petaloconchus sculpturatus, Lea. 

 Dosinia acetabulum, Conrad. 

 Tellina biplicata, Conrad. 



Pecten oxygonus, Sow. 



comparilis, Tuomey ^ Holmes. 



Ostrea virginica, Gmel. 

 Ficula carbasea, spec. nov. 

 Teredo fistula, Lea. 



The Mollusca occur generally of large size. Several of the unde- 

 termined species resemble shells from San Domingo ; but their con- 

 dition is such as to render it unsafe to give the names. 



Numerous seams of coal occur in the series, some of which, being 

 of workable thickness (3 to 4 feet), may eventually prove of use. 

 There are at present no facilities for getting at the coal, owing to the 

 want of roads and paucity of inhabitants in that part of the country 

 where the beds are exposed. 



d. Gumana. — I have already alluded to the nature of the beds 

 containing Miocene fossils at Cumana on the north coast of Vene- 

 zuela*. Further particulars will be found in Mr. Wall's communi- 

 cation " On Yenezuela and Trinidad." t The fossils have not hitherto 

 been determined ; but a list of the genera will be found in the Ap- 

 pendix to the Geological Eeport on Trinidad j. The following is a 

 list of the species which I have been able to determine : — 



Pyrula melongena, Linn. 

 Murex Domingensis, Sow. 

 Persona simillima, Sow. 

 Fasciolaria Tarbelliana, Grat. 

 Columbella venusta, Sow. 

 Conus gracilissimus, Gwppy. 



symmetricus. Sow. 



Oliva hispidula, Lam. 



cylindrica, Sow. 



Marginella coniformis, Sow. 



interrupta. Lam. 



Cancellaria Moorei, Gujppy. 

 Terebra inaequalis, Sow. 

 Pleurotoma Haitense, Sow. 



Barretti, Guppy. 



Phos elegans, Guppy. 

 Nassa solidula, spec. nov. 

 Cerithium plebeium, Sow. 

 uniseriale, Sow. 



Melanopsis cepula, spec. nov. 

 Turritella torn^ta, spec. nov. 

 Turbo castaneus, Gmel. 

 Natica sulcata, Born. 

 Bulla striata, Brug. 

 Venus Paphia, Linn. 



Woodwardi, Guppy. 



cancellata, Linn. 



Cytherea juncea, spec. nov. 



convexa, Say. 



Lucina Pennsylvanica, Linn. 



tigrina, Linn. 



Cardium Haitense, Sow. 

 Pectunculus pennaceus. Lam. 



— acuticostatus, Sow. 



Area consobrina, Sow. 



incongrua, Say. 



From this list, which must be regarded as a provisional one, it 

 will be seen that the proportion of recent species (39 per cent.) is 

 greater than has been determined for any of the other Caribean Mio- 

 cene deposits. This may be partly due here, as elsewhere, to the 

 facility with which I have been able to identify recent species. Of 

 the fourteen recent species, only three have not been recorded from 

 other West-Indian Miocene beds. Of the total of thirty-seven spe- 



* Quart Journ. Geol. Soc. vol. xxii. p. 282. 

 t Ibid. vol. xvi. p. 460. 



Eeport, &c. p. 163. 



