TOMES : MESOZOIC CORALS OF THE COUNTY OF YORK. b6 
Two species of Protoseris have been described from the 
Oolite of Xattheira, in Wurtemburg, one only of which has been 
examined by the present writer, namely, Protoseris foliosa Becker. 
It is a less typical species than Protoseris Waltoni. Three species 
have also been described and figured by Professor Koby in his 
work on Swiss Jurassic Corals,* namely, Protoseris Gresleyi, 
P. plicata and P. Jaccardi, but an expression of doubt as to the 
genus accompanies the description of the two last named. They 
are all from the Corallien. 
Two specimens of Protoseris from Settrington, Yorkshire, 
which have been forwarded to me by the Rev. W. Lower Carter, 
pro\e on examination to be referable to P. Waltoni. 
Protoseris sp. 
A single, very ill-preserved coral from the Corallien of Malton 
differs from Protoseris Waltoni in having crowded calices which 
are very small. It is not sufficiently preserved for description, 
but is certainly undescribed. 
III. — Cretaceous species 
The small turbinate corals found in the Speeton Clay have 
been so little understood that Mr. Judd in his paper on that 
peculiar deposit, published in 1868, has the following: — f 
^^Caryophyllia conulus Phil. — I have long doubted the identity 
of the minute Yorkshire coral with the large and well-marked 
species from the Gault, figured and described by Milne-Edwards. 
Mr. Dallas, who kindly made a comparison for me, found it 
impossible to come to an}^ certain conclusion on the subject owing 
to the imperfect state of preservation of the type specimens." 
The opportunity of comparing some pretty well-preserved 
specimens from Speeton with a considerable number from the 
Folkestone Gault, has enabled me to deterinine two well-defined 
species, probably a third. 
*Monogr. Polyp. Jurass. Suisse, p. 350, &c., pi. xcvi., figs. 2, 3, 4, 5, 
and 6. 1885. 
t Quart. Journ. Geol. Soc, Vol. XXIV., p. 225. 1868. 
