CORALS FROM THE GREAT OOLITE. 121 



FuNGiA ORBULiTES, Lumouroux, Expos. Method., p. 86, tab. Ixxxiii, figs. 1, 2, 3, 1821. 

 FuNGiA LJ3VIS, Goldfuss, Petref. Germ., v. i, p. 47, tab. xiv, fig. 2, 1826. 

 Cyclolites L.t;vis, Blainville, Diet, des Sc. Nat., v. Ix, p. 301, 1830. 



Anabacia ORBULITES and Anabacia Bajociana, D'Orbic/iuj, Prod, de Paleont., v. i, 



pp. 321-2, 1850. 

 — — Milne Edwards and J. Haime, Polyp. Foss. des Terr. Palceoz., etc., 



p. 122, 1851. 



CoraUum simple, circular, and affecting the form of a plano-convex lens, with a thick, 

 rounded edge, and a small, shallow, circular fossula. Sej^ta very numerous (140 or 150), 

 extremely closely set, of equal thickness and of equal height, but varying in breadth 

 (from the centre to the circumference of the corallum), and very delicately and regularly 

 denticulated ; the smaller ones joining the neighbouring large one at their inner edge, 

 so as to make the latter appear to bifurcate. In general, forty-eight principal septa reach 

 to the edge of the fossula. Tlie imder surface is often concave. Breadth, six or seven 

 lines. Height, three lines. 



The genus Anabacia has been very judiciously established by M. D'Orbigny^ for 

 those simple, lenticular corals which had been usually placed among the Eungia or the 

 Cyclolites, but differ from them by the absence of the mural disc. Anabacia orbulites 

 was the first species known to naturalists, and good figures of this fossil were given in 

 the works of Plot and of Knorr. Three other species present the same generical 

 characters, but are easily distinguished from it, specifically, by their general form ; one 

 of these, A. Normaniana^ being very flat; the second, A. liemisphericaf being on the 

 contrary much taller, and more convex ; and the third, A. BoucJiardi,^ being almost conical. 



Anabacia orbulites appears to be a common species. Specimens found in the Bradford 

 clay at Bradford, and in the Great Oolite at Comb-Down, are in the collection of the 

 Geological Society. Mr. Walton and Mr. Pratt have kindly submitted to our investigation 

 other specimens found at Hampton, near Bath. Mr. Lonsdale mentions its occurrence in 

 the Cornbrash at Atford, and W. Smith met with it at Broadfield Farm five miles from 

 Bath, near Phillips Norton, Somersetshire. It has also been found in the Inferior Oolite ; 

 Mr. Bowerbank and Prof. Phillips have communicated to us specimens from Dundry, and 

 Mr. Walton a specimen from Charlcomb. 



The same fossil is found in France, in the Great OoHte near Caen, Departement du 

 Calvados, and in the Inferior Oolite at Conlie, Departement de la Sarthe. Goldfuss 

 mentions also its occurrence in the Swiss Jura. 



1 Note sur des Polypiers Fossiles, p. 11, 1849. 



2 D'Orbigny, Prod., vol. i, p. 241. 



3 Tab. xxix, fig. 2. 



* Funf/ia orbulites (pars); Michelin, Icon., tab. liv, fig. 1 ; Anabacia Boiichardi, Milne Edwards and 

 J. Hairae, Polyp. Palseoz., etc., p. 122. 



16 



