ji 
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228 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
the Geological Society of London the originals and types of Duncan.’ 
The result of this study was somewhat as I antieipated, — all of Duncan’s 
identifications with European species are wrong. The Diploria crasso- 
lamellosa (described in this paper as JD. conferticostata) and Cyathoseris 
haidingeri of Duncan are both new species. Later I have described the 
former; the latter is still undescribed. Mr. Hill has collected no 
specimen of it in his travels, and I did not have time while in London 
to study the species properly and have figures drawn. Duncan’s 
Heliastrea exsculpta is not only not the same as the Heliastrea exsculpta 
of Reuss, but does not belong to the same genus. It is a synonym 
of Heliastrea (= Multicolumnastrea, gen. nov.) cyathiformis, Duncan. 
This breaks down absolutely any comparison of the Jamaican corals 
with those from the Gosau. It might be added that the Gosau is not 
Lower Cretaceous, as Duncan states, but high in the Upper Cretaceous. 
Hocene. 
Paracyathus sp. Styloccnia emarciata, var. La- 
Stylophora contorta, Leymerie sp. marck sp, 
Stylophora contorta, var. nov. 
Duncan has published no descriptions or figures of these species, and 
only very scanty notes. I made the following notes on the original 
specimens in the collection of the Geological Society of London. 
Paracyathus sp., which Duncan compares with P, caryophyllus (La- 
marck).” The specimen is a fragment, so poorly preserved that one 
cannot determine any essential characters. Locality, “Black Shales, 
Grass Valley, Jamaica,” according to label in collection of the Geological 
Society; * Yallahs Valley,” according to Duncan. : 
Stylophora contorta, Leymerie sp. (Duncan). I could see no reason 
for separating the specimens specifically from Stylophora afinis* of 
Duncan. The walls between the calices are usually not so thick. As 
the surface ornamentation has been eroded, tho specimens cannot be 
accurately described. 
Styloeenia emarciata, Lamarck sp. (Duncan) from Port Maria. There 
are thickenings at the corners of some calices, and there appear to be 
1 For this privilege I am indebted to Mr. William Rupert Jones, Librarian, and 
Mr. L. L. Belinfante, Secretary of the Geological Society. Mr. C. Davies Sher- 
born, who was cataloguing and labelling the types in the Society’s collections, did 
everything possible for me. 
2 Op. cit., p. 8. 
3 Op. cit., pp. 9, 13. 
4 Quart. Jour. Geol. Soc. London, 1863, Vol. XIX. p. 436, Pl. XVI. Fig. 4. 
