CORALS FROM THE GAULT. 69 



bent in two ; from T. Boissyana, T. Batula} T. cernua, and T. crassa," by being sub- 

 pedicellated, and not adherent in the adult state; from T. irregularis, T. corniculum, 

 T. Faujasii, T. Gervillii, and T. uricornis, 3 by being strongly compressed quite down to 

 the basis ; and from T. Saltzburgiensis, T. cuneolus, T. comjoressa, T. complanata, 

 T. Basochesii, and T. tuberosa, by the existence of the above-mentioned four deep mural 

 furrows. By their general form, all these corals much resemble many species belonging 

 to the division of Cyathininae, but differ from them, and from all other Turbinolidse, by 

 having interseptal dissepiments. 



This fossil was found in the Gault at Folkstone, by Mr. Bowerbank. 



The Lithodendron gracile, Goldfuss, 4 is mentioned by Mr. Morris 5 as having been 

 found in the Gault of Kent, but as yet w y e have not met with any specimens of that species 

 in any of the British palaeontological collections. 



1 See our Monogr. des Astreides, Ann. des Sc. Nat., 3"" serie, vol. x, p. 236. 



- We here designate, under the name of Trochosmilia crassa, the fossil described by M. Micheiin under 

 the name of Turbinolia cernua, Goldfuss, and by ourselves as Trochosmilia cernua ; for, on comparing it with 

 the specimens previously described by Goldfuss under the name of Turbinolia cernua, we have ascertained 

 that they are not specifically identical. 



The species which must retain the name first applied by Goldfuss presents the following characters : 



Corallum pedicellated and strongly compressed quite from the basis. Costee thin, alternately unequal ; 

 the larger ones rather prominent and somewhat lamellar. Calice arched and elongated in the proportion 

 of 100 : 230. Septa thin, very closely set, and presenting on their lateral surfaces a great number of 

 granulations arranged somewhat regularly in convex lines parallel to the upper edge. Forty-eight principal 

 septa, separated by an equal number of small ones ; some indications of an additional rudimentary cyclum. 

 Height of the corallum, one inch and a half; long diameter of the calice, twelve lines ; short axis, five lines. 

 (The figure given by Goldfuss, tab. xv, fig. 8, is not quite accurate.) 



3 Monogr. des Astreides, loc. cit. 



* Petref. Germ., vol. i, tab. xiii, fig. 2. 



5 Catalogue of British Fossils, p. 40. 



