280 BRITISH FOSSIL CORALS. 



Family CYATHOPHYLLID^E, (p. lxv.) 

 1. Genus Aulacophyllum, (p. lxvii.) 



AULACOPHYLLUM MITRATUM. Tab. LXVI, figS. 1, 1 CI, lb. 



Hippurites mitratus (pars), Scklotheim, Petref., 1st part, p. 352, 1820. 

 Turbinolia obliqua, Hisinffer, Anteckningar, vol. v, p. 128, pi. viii, fig. 7, 1831. 



— furcata, Ibid., p. 128, lab. vii, fig. 4. 



— mitrata, Hisinffer, Leth. Suec, p. 100, pi. xxviii, fig. 10 (var. obliqua), and 



fig. 11 {var. furcata), 1837. 

 Cyathophyllum mitratum, Geinitz, Grundr. derVerst., p. 571. pl.xxxiii a, fig. 8, 1845-46. 

 Petraia /EQUisulcata, M'Coy, Ann. and Mag. of Nat. Hist., 2d ser., vol. vi, p. 279, 1850. 



— — M'Coy, Brit. Palseoz. Foss., p. 39, 1851. 



Aulacophyllum mitratum, Milne Edwards and Jules Haime, Pol. Foss. de? Terr. Palseoz. 



(Arch, du Mus., vol. v), p. 356, pi. ii, fig. 6, 1851. 



Corallum simple, turbinated, free, subpedicillated, thin, strongly curved; epitheca thin, 

 and presenting slight circular wrinkles. 34 principal septa, rather thick exteriorly, 

 extending mostly to the centre of the visceral chamber, and alternating with an equal 

 number of rudimentary ones. A furrow occupying the place of the septal fossula, not 

 well defined, and indicated by the junction of the septa at the bottom of the calices. 

 Height of the corallum \\ or 2 inches ; diameter of the calice about 8 lines. 



Dudley, Walsall. Professor M'Coy mentions also its existence at Coniston, Lancashire ; 

 Applethwaite Common, Westmoreland; Mulock Quarry, Dalquorhan near Girvan, Ayrshire ; 

 High Haume, Dalton in Furness, Lancashire ; Glyn Ceiriog, Denbighshire. 



This coral is also met with in Gothland. It does not present the characteristic 

 peculiarities of Aulacophyllum in as distinct a manner as the other species of the same 

 genus ; but in adult specimens the pinnate arrangement of the septa is very evident. In 

 A. sulcatum^ they are much more numerous. 



2. Genus Cyathophyllum, (p. lxviii.) 

 1. Cyathophyllum? Loveni. Tab. LXVI, figs. 2, 2a. 



Madrepora simplex, &c, var. b, Fougt, Amsen. Acad., vol. i, p. 90, tab. iv, fig. -1, 1749. 

 Fungutes, Thomas Pennant, Phil. Trans., vol. xhx, 2d part, p. 515, tab. xv, figs. 8 and 9, 



1757. 

 Cyathophyllum flexuosum 1 Hisinger, Leth. Suec, p. 102, pi. xxix, fig. 3, 1837. (Not 



Goldfuss.) 



1 Pol. Foss. des Terr. Palseoz., p. 355, pi. vi, fig. 2. 



