CORALS FROM THE CORAL RAG, 83 
M. orbitolites, and M. deformis, are discoid or subdiscoid ; J7. tenuilamellosa’ and 
M. dilatata’ ave conical, but very short and broad ; JZ. Waterhousii® is rather tall, but almost 
cylindrical and regularly convex at its basis, and free; JZ. Sinifhi* and JZ. cupuliformis® 
are fixed by a very broad basis; and J/. contorta® is very tall and irregularly bent. 
The fossils described by M. Michelin under the names of Anthophyllum excavatum,' 
Caryophyllia subcylindrica,’ C. elongata, C. cornuta, C. vasiformis," ond Lobophyllia 
incubans”’ ; by Goldfuss under the name of Authophyllum turbinatum,” and by Roemer under 
the name of Anthophyllum eaplanatum," as well as some small specimens from St. Cassian, 
figured by Munster, appear also to belong to this genus, and differ from JZ. dispar by 
their form, but are not sufficiently characterised when compared with some of the preceding 
species. We must also add that the Caryophyllia Moreausiaca of M. Michelin is very 
imperfectly known, and we are not acquainted with the characters that distinguish it from 
M, dispar. 
This fossil is found at Malton, Yorkshire, and at Bridport. A specimen belonging to 
the Museum of Natural History, in Paris, and obtained at Damvilliers, in the department 
of the Meuse, appears to belong to the same species. There is also in M. Michelin’s 
collection a coral from Is-sur-Thil in the department of La Coté d’Or, which may be 
referred to the JZ. dispar; and M. D’Orbigny mentions the same species as having been 
met with in the island of Ré, on the west coast of France. ‘The British specimens which 
we have examined belonged to the collections of the Geological Society of London, the 
Cambridge Museum, Professor J. Phillips, Mr. Bowerbank, and the celebrated cabinet 
formed by Goldfuss in the Poppelsdorf Museum, at Bonn. 
1 Tab. xxvi, fig. 11. 
2 Caryophyllia dilatata, Michelin, Icon., p. 96, tab. xvii, fig. 4. Although this figure does not show 
the epitheca which is so highly developed in Montlivaltia, we referred the species to that generical division 
in our Monograph of the Astreide, ‘Ann. des Se. Nat.,’ s, 3, vol. x, p. 260, and since the publication of 
that work, we have been able to ascertain the propriety of so doing. We have seen, in the collection of 
M. Buvignier, some specimen found in the Coral Rag of Chaumont, and having the wall completely covered 
with a thick epitheca. M. D’Orbigny has mentioned this species as the type of his genus Lasmophyllia, 
the characters of which do not differ from those of our genus Trochosmilia, and it appears very probable 
that all the fossils which that palzeontologist refers to his new generical group, are in fact species of 
Montlivaltia, the epitheca of which has been accidentally worn off, as is the case with the Caryophyllia 
dilatata described by M. Michelin. 
3 Tab. xxvii, fig. 7. 4 Tab. xxi, fig. 1: 5 Tab. xxvii, fig. 1. 
6 D’Orbigny, Prod., vol. ii, p. 30. 
7 Michelin, Ieon., pl. xvii, fig. 10, (nou Roemer.) 8 Ib., figs. 2;.3. 9 Ib., fig. 7. 
10 Ib. fig. 19. Lbs te 9 Hb. es 2 
18 Goldfuss, Petref. Germ., vol. i, tab. xxxvii, fig. 13. 
14 Verst. des Norddeutschen ool. geb., tab. xvii, fig. 21. 
