﻿542 DR. WHEELTON HIND ON THE PALEONTOLOGY [Aug. I905, 



part of the periphery and also a portion of the test, which exhibits 

 a well-marked hyponomic sinus on the periphery. The siphuncle 

 was placed a little way above the centre of the shell. 



Locality. — North-Staffordshire Coalfield: below the Gin-Mine 

 Coal. Coalbrookdale Coalfield : Permystone Ironstone. 



SOLENOCHEILUS aff. CTCLOSTOMA (Phill.). (PI. XXXVI, figs. 2 & 2 a.) 



I refer to this species a fragment, the body-chamber of an adult 

 shell, which has been found below the Gin-Mine Coal at Nettlebank. 

 The siphuncle is seen to be near the peripheral margin. The 

 periphery is broad, smooth, and convex, and has along its centre a 

 line raised line. 



The impression of the preceding whorl is only moderately deep 

 and narrow. The section of the whorl is circular when young, but 

 is transverse in aged specimens. 



I have met with this species below the Third Grit of Wadsworth 

 Moor. Its vertical range is, therefore, much increased by the present 

 discovery. 



CCELONATJTILUS cf. SUBSULCATUS (Phillips) . 



Two much-compressed fragments suggest reference to this species. 

 Locality. — North-Staffordshire Coalfield: below the Gin-Mine 

 Coal. Yorkshire Coalfield : Shibden. 



Orthoceras. 



At least two species of this genus occur below the Gin-Mine Coal 

 of Nettlebank. One is small, elongate, and slender, and for the 

 present I refer it to 0. asciculare, Brown. Another fragment 

 belongs to a much more robust species (PI. XXXYI, fig. 8), with 

 moderately-distant chambers and a slow rate of tapering, but it is 

 too indefinite for the accurate determination of the species. 



Orthoceras aff. asciculare, Brown. 1 (PI. XXXVI, figs. 6 & 7.) 



Localitie s. — North-Staffordshire Coalfield : below the Gin-Mine 

 • Coal, above the Crabtree Coal ; 71 feet below the Four-Feet Coal, 

 Cheadle. 



Lancashire Coalfield : above the Bullion Mine, Sholver. Coal- 

 brookdale Coalfield : Pennystone Ironstone. 



Mr. George "Wild figured a small slender Orthoceras from the 

 Soapstone-bed, above the Bullion Coal, Trawden, Colne, 2 calling it 

 0. minulissimum, Phillips. I think that this is Brown's species, the 

 original of which came from the Pendleside Series near Todmorden. 

 I have just figured specimens of this species from the Pendleside 

 Series of the West of Ireland, 3 considering Baily's 0. minimum as a 

 synonym of Brown's shell. Probably 0. pygmceum, de Koninck, 

 from Chokier, belongs really to the same species. Apparently the 

 Coal-Measure shell was much longer than those met with in the 

 Pendleside Series. 



1 Trans. Manch. Geol. Soc. vol. i (1841) p. 220 & pi. vii, fig. 39. 



2 Ibid. vol. xxi (1891-92) p. 400 & pi. ii, fig. 4. 



3 Proc. Roy. Irish Acad. vol. xxv (1905) p. 112 & pi. vi, fig. 23. 



