696 ME. E. J. LECHMEEE GTJPPY ON THE GEOLOGY [Nov. 191 I, 



As additional testimony to the Pacific alliances of the West- 

 Indian Tertiary fauna, I may mention here the fossil surgeon-fish 

 from Antigua (Zebrasoma deani Hussakof) described in Bull. Am. 

 Mus. Nat. Hist. N.Y. vol. xxiii, 1907, p. 125. The living forms of 

 the genus are confined to the Indian and Pacific Oceans. 



I am sorry that in my paper on the ' Geological Connexions of 

 the Caribean Region ' I omitted to notice the extremely pertinent 

 remarks made by the late Dr. W. T. Blanford in the discussion on 

 Dr. Spencer's papers on the West Indies. I owe the possession of 

 the report of this discussion to my friend, Mr. Eobert S. Reid, 

 of Tobago. As Dr. Blanford's remarks bear so strongly on the 

 arguments for the Tertiary Atlantis, I trust that I may be allowed 

 to quote them here as supplementary to my above-mentioned 

 paper: — 



' Omitting bats, the rodents and insectivora of Cuba, Hayti, and Jamaica 

 have quite as strong affinities with African as with American forms. 

 There are no insectivora in South America, and the North American genera 

 are remote from the West Indian, the nearest allies of the latter being found 

 in Madagascar. It is possible that the West Indian mammals entered the 

 country when it was part of a land extending from South America to Africa, 

 and since the immigration of these types, which must have been in the older 

 Tertiary times, there is nothing to show that the West Indies as a whole 

 have been united to either North or South America.' (Q. J. G. S. vol. lviii, 

 1902, p. 366.) 



Y. CONSIDEKATIONS ON THE GEOLOGY OF TeINIDAD. 



Duncan's ' Sketch of the Geology of Trinidad ' 1 is so full of 

 inaccuracies that it would occupy too much time here to correct it. 

 I will merely pass on to his statement (on p. 12) that the 

 fossiliferous deposit at St. Croix is in the same series as the cliffs 

 at San Fernando. I cannot admit this, nor can I admit that the 

 alliances of the fossils from the limestones of San Fernando are 

 closer with those of the Jamaican Miocene than with those of the 

 chert of Antigua. My acquaintance with the fossils of the chert 

 of Antigua is extremely limited, and I could never have instituted 

 such a comparison. As to the fossils of the Orbitoides Bed, the 

 list given by me at p. 572 of vol. xxii (1866) of this Journal shows 

 only a single species common to Jamaica, namely the Orbitoides, 

 and that is not Miocene. I leave out the Natica, for it was 

 merely a cast ; and I am not at all sure about it, though I 

 regarded it as a Miocene species when I wrote that paper. 2 It is 

 true that I gave certain generic names of fossils ; but, as I have 

 never found specimens in a condition admitting of specific 

 identification or description, they would form an insufficient 

 basis for such a statement as that made by Duncan, in face of the 

 facts pointing the other way. 



I do not feel certain of the exact place that the Manzanilla Beds 

 ought to occupy, as I have failed to find anywhere else a similar 



1 Q. J. G. S. vol. xxiv (1868) pp. 10-11. 



2 See also Q.J. G. S. vol. xlviii (1892) p. 536. 



