25 
- 7 ~ 
Actaeonella 
Phylioceras ! (Immature specimen with septa not 
well shown.) 
Yours very truly, 
T. W. Stanton. M 
Antigua n fossil Corals. 
The following lists indicate the fossil corals recorded by Duncan 
from Antigua, an attempted revision of his names, and the species col- 
lected by Mr. Hill. Most of Duncan's types or original specimens are 
deposited in the Museum of the Geological Society of London, and a few 
of them in the British Museum of Natural History. I have twice vis- 
ited the two museums mentioned and through the courtesies of their re- 
spective officials have studied all the original material now extant, 
and have had all of it photographically illustrated. Usually the speci- 
mens are poorly preserved and until additional extensive and carefully 
made collections have been studied* the revision will be unsatisfactory. 
The Antiguan coral fauna is of groat geological importance as it 
represents one of the best characterized and most widely recognized 
geologic horizons in the American Tertiary System. it is known from 
Porto Rico, Cuba, southern Georgia, Mexico, and Arube. The coral 
formation s 
fauna of the "silex” bed of the Tampa/ is very closely related, ae its 
general aspect is the same and several species are identical. It ap- 
pears that the Tampa fauna is slightly younger. The abundant coral 
fauna at Empire, Canal Zone, Panama, is also closely related, but is 
probably slightly older. 
i 
