﻿Vol. 64.] IN THE CAKBONIFEROUS EOCKS AT LOUGHSHINNY. 455 



Thomas Davidson : ' Monogr. Brit. Foss. Brachiop.' vol. ii (1858-63) 



Pala;ont. Soc. (Eeferred to under the abbreviation — ' Davidson.') 

 Jajies Thomson & H. Alleyne Nicholson : ' Generic Types of Paleozoic 



Corals' Ann. & Mag. Nat. Hist. ser. 4, vol. xvi (1875) pp. 305, 424 ; 



vol. xvii (1876) pp. 60, 123, 290, 451 ; & vol. xviii (1876) p. 68. 

 James Thomson : 'Corals of the Carboniferous System of Scotland' Proc. 



Phil. Soc. Glasgow, vol. xiv (1882-83) p. 296. 

 C. A. Matley & A. Vaughan : ' Carboniferous Rocks at Eush ' Quart. 



Journ. Geol, Soc. vol. Ixii (1906) p. 275 (referred to under the 



abbreviation ' Rush paper '). 

 R. G. Carrutiiers : ' Revision of some Carboniferous Corals ' Geol, Mag. 



dec. 5, vol. V (1908) pp. 20, 63, & 158. 



I. CORALS. 

 Miclielinia. 



Michelinia megastoma (Phillips). 



Calamopora (1) megastoma, Phillips, 'Geol. Yorkshire' pt. ii, p. 201 & 



pi. ii, fig. 29. 

 Michelinia megastoma, Edwards & Haime ' Monogr. Brit. Foss. Cor.' pt. iii, 



p. 156 & pi. xliv, fig. 3 a. 



Calices large (exceeding 1 centimetre in diameter) and not ver}' 

 numerous. Epitheca without * rootlets,' and revealing the form of 

 the enclosed corallites. Corallum flattened and expanded. Walls 

 thickened, and lined with closely- packed vesicles. 



The holotype is preserved in the Gilbertson Collection, British 

 Museum (Natural History), and, judging by the locality (' BoUand '), 

 came from Yisean beds. 



Differences. — Miclielinia grandis, M'Coy, ' Brit. Palaeoz. Foss.' 

 p. 81, pi. iiic, fig. 1, differs in its tall corallum and in the fact 

 that the walls are not specially thickened. 



(It now appears probable that the commonest Megastomatid from 

 C-S^ of the South- Western Province agrees with M.grandis^ M'Coy, 

 rather than with Phillips's species.) 



Occurrence. — Miclielinia megastoma is common in the Eush 

 Conglomerate and rare in the Holmpatrick Limestone. The Miclie- 

 linia from the Derbyhaven Limestone of the Isle of Man appears 

 to be identical. 



Michelinia tenuisepta (Phillips). (Pig. 15, p. 456.) 



Calamopora (?) tenuisepfa, Phillips, op. cit. p. 201 & pi. ii, fig. 30. 

 Non Michelinia tenuisepta, Edwards & Haime, op. cit. p. 155 & pi. xliv, fig. 1. 

 Non Michelinia tenuisepta, de Koninck, * Nouvelles Recherches sur les Anim. 

 Foss. du Terrain Carb. de la Belgique' (1872) p. 133 & pi. xiii, figs. 2-2 a. 



Holotype lost (originally in the Gilbertson Collection). 



The following characters can be deduced from Phillips's descrip- 

 tion and figure : — Corallum conically expanded ; corallites long and 

 narrow. Calices numerous and unequal (the average width is less 

 than 5 millimetres). 



