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HILL: GEOLOGY OF JAMAICA. 231 
Arranging the other species according to Hill's stratigraphic succes- 
sion, we have : — 
Cretaceous. 
Blue Mountain Series. Cladocora jamaicaensis, sp. nov. ; Leptophyllia 
agassizi, sp. nov.; Solomon Mountain, Stiboriopsis jamaicaensis, sp. 
nov. Craigio, Parish of Hanover.  Multicolumnastrea cyathiformis 
(Duncan), Mount Hindmost, Trout Hall, and Cupius. Diploria con- 
ferticostata, sp. nov»; Trout Hall and Upper Clarendon District, 
Pennants in Upper Clarendon District. Porites reussiana, Duncan, 
Upper Clarendon District. 
Eocene. 
Richmond Beds. Stylophora contorta, Leymerie sp. (fide Duncan), 
Port Maria. Astroccenia duerdeni, sp. nov., Port Maria and Point Hal- 
dane, St, Mary Parish. ?Columnastrea eyeri, Duncan, Locality ? 
Cambridge Beds: Turbinoseris jamaicaensis, sp. nov. ; Turbinoseris 
cantabrigiensis, sp. nov.; Dendracis cantabrigiensis, sp. nov.; near 
Cambridge Station. 
Catadupa Beds. Trochosmilia hilli, sp. nov.; Multicolumnastrea 
cyathiformis (Duncan) ; Diploria conferticostata, sp. nov. ; Diploria con- 
ferticostata, var. columnaris, var. nov.; Trochoseris catadupensis, sp. 
nov. ; Mesomorpha catadupensis, sp. nov. ; Catadupa. 
Wo appear to have in these corals the unusual condition of several 
Cretaceous species ranging far up into the Eocene. Mr. Hill has a 
lengthy discussion of this subject in his report on Jamaica. 
There are six species from the Blue Mountain Series. As two of 
them belong to new genera, any evidence for geologic age must be 
drawn from the remaining four. The genus Cladocora ranges from 
Jurassic to present time, so the first species is indefinite in its evidence. 
Leptophyllia is Jurassic, Cretaceous, and Eocene, but the Jamaican species, 
L. agassizi, seems more closely related to the Cretaceous forms. The 
range of Diploria is from Cretaceous to the present. The nearest species 
to D. conferticostata is an Italian Eocene species. The genus Porites is 
a Tertiary genus, and if Duncan’s generic diagnosis is correct, the Porites 
reussiana would argue for the age of the beds in the Upper Clarendon 
District. being at least not older than Eocene. If the genus of the 
species should be Zitharea, as I suspect to be the case, it might be 
Cretaceous, but it seems more closely related to some of the Eocene 
species, It seems to me that there are two faunas in the Blue Mountain 
