Vol. 68.] srccEssiox ix the xorth-west of exgland. 561 



CA^iPoPHriLUM ciLiATUJi, sp. nov. (PI. XLVIII, tigs. 6a-6c.) 



C o r a 1 1 u m rather small, simple, cylindrical. Epitheca with coarse 

 lougitudinai ribbing aud very well-marked growth-lines. Hollow 

 root-like processes are given off from the proximal end. 



Transverse section. — Central area tabulate and wide. Outer 

 margin of the area radiated by a series of thickened pointed septa, 

 which are undulating and contiguous near their bases. They 

 usually occur in pairs, and have a tendency to coalesce near their 

 inner ends, one of them being prolonged as a single thread-like 

 septum. The fused bases of these septa give the appearance of an 

 inner wall ; outside this ■ wall ' occurs a zone of line tissue radiated 

 by the septa. There is an external zone of very coarse vesicular 

 tissue not radiated by the septa. A septal fossula is but feebly 

 developed. 



Longitudinal section. — Tabulae widely spaced, and inter- 

 rupted by occasional circular vesicles, which appear like nearly 

 spherical bubbles in a longitudinal section. 



Remarks. — This form is doubtfully placed under the genus 

 Campojjh^/Uu/n. In many respects it appears to resemble Billings's 

 genus Blothrojjliylh.i.m from the Devonian (Corniferous Limestone) 

 of Ontario, as figured in the ' Canadian Journal' ^ and refigured by 

 Mr. L. M. Lambe in ' Contributions to Canadian Palaeontology ' - ; 

 this genus is characterized by the very large and blister-like 

 Tesicles which form the outer zone, but has a distinct septal fossula 

 and minor septa. 



Horizon and locality. S>yinin ula - r/re^/aria Sub - zone. 



Meathop, Arnside District. 



Caxixia subibicixa M'Coy. (PL XLIX, fig. 3.) 



The type-specimen of this species figured by M'Coy/ is pre- 

 served in the Sedgwick Museum, Cambridge. It was obtained from 

 the Kendal District of the Xorth-Western Province. A figure 

 of a transverse section cut from this type-specimen is given here, 

 through the courtesy of Prof. McKenny Hughes. There can be 

 little doubt that the horizon from which the specimen was obtained 

 is that of the Jlichelinia Zone of the classification adopted in the 

 present paper. The coral is not infrequently met with in the 

 upper portion of this zone at Arnside, and in other exposures at 

 the same horizon in the Kendal, Grange, and Furness Districts. 



In the Shap District it enters somewhat earlier, and is there 

 characteristic of the Thysanophyllum Band. 



Zaphrextis koxixcki, forma kentexsis nov. (PI. XUX, fig. -i.) 



This form differs from the typical form of this species described 

 by Mr. Carruthers,* in its greater size and in the more pronounced 



' Canadian Journal (Cauad. Inst.) n. s. vol. iv (1859) fig. 25 & p. 130. 

 - Geol. Surv. Canada, toI. iv, pt. ii (1901) p. 171 & pl. xv, fi^. 1. 

 ^ • British Palaeozoic Rocks &: Fossils ' 1855. pl. iii /. figs. 35 & 3oa. 

 •» Geol. Ma£. dec. 5. vol. v (1908) p. 67. 

 Q. J. G. S. Xo. 27-2. 2 s 



