P. M. DUNCAN ON THE UPPER-GREENSAND CORAL FAUNA OF HALDON. 89 
7. On the Uppnr-Greensand Corat Fauna of Haxpon, Devonsuire. 
By Professor P. Martin Duncan, M.B. Lond., F.RS., &e. 
(Read November 20, 1878.) 
[Puate VIII. | 
MM. Mitne-Epwarps and Jules Haime, writing in 1850, in their © 
celebrated ‘Monograph of the British Fossil Corals,’ stated that “the 
class of Polypi had not, in all probability, numerous representatives 
in the beds where the Upper Greensand was deposited ; for we have 
as yet seen only four British species belonging to that formation ; 
and the English geologists do not appear to have met with many 
more. Most of the fossils belong to the family Astreide, and have 
been found at Haldon, at Blackdown, or at Warminster” *. 
During the twenty-eight years which have elapsed, so many speci- 
mens of fossil corals have been discovered in the English Upper- 
Greensand series that the coral fauna of that age has become an im- 
portant one, and requires more careful examination by paleonto- 
logists. 
MM. Milne-Edwards and Jules Haime described a few speci- 
mens which had been collected and studied, to a certain extent, by 
Mr. R. Godwin-Austen and Prof. John Morris. Thus Peplosmilia 
Austeni, Kdw. & H., of Haldon, was described by the French natu- 
ralists from Mr. Austen’s specimen, and two species, called by Mr. 
Godwin-Austen Astrea elegans and Astrea escharoides, were men- 
tioned in the Monograph; but as the specimens were not available, 
the forms were not delineated. 
The Blackdown Greensand contained Morris’s Yurbinolia com- 
pressa, Which became Trochosmilia tuberosa, Kdw. & H.; and Paras- f 
trea, now Huvia striata, Kdw. & H., came from the same locality. 
The Warminster Greensand yielded Micrabacia coronula, Goldfuss, 
sp., to the researches of the distinguished zoophytologists. 
Some time afterwards the same authors published a description 
of Smilotrochus Austeni, Edw. & H., from the Farringdon Greensand, 
and altered the generic title of the Trochosmilian form from Haldon 
to Smilotrochus tuberosus, Kdw.& H. One new form was thus added 
to the list. 
In 1869 and in 1870 the portion of the ‘Supplement to the British 
Fossil Corals’ relating to the corals of the Upper-Greensand series 
was published by the Palsontographical Society, and considerable 
additions were made by me to the fauna from Haldon. The coral 
fauna of the Cambridge Greensand was also described ; moreover an 
Irish coral species was determined from a similar geological horizon. 
The Haldon species had been carefully collected by Mr. W. Vicary, 
F.G.S. ; and the Cambridge Greensand corals were placed in my hands 
by Mr. James Carter and the Rey. Thomas Wiltshire. The results 
* MM. Milne-Edwards and Jules Haime, Palxontolog. Soc., Monog. Brit. 
Foss. Corals, part i. 1850. 
