﻿534 DR. WHEELTON HIND ON TILE PALEONTOLOGY [Aug. I905, 



Lamellibr ancMat a . 



Synctclonema carboniferttm, Hind. (PI. XXXY, fig. 12.) 



This species was erected on a number of specimens from the 

 marine band below the Gin Mine at Nettlebank (North Stafford- 

 shire). Figures and description were published in my Monograph 

 of Brit. Carb. Lamell. vol. ii, pt. ii, p. 120 & pi. xix, figs. 3-6 

 (Pal. Soc. vol. ivii, 1903). Subsequently Mr. John Smith, of 

 Kilwinning, sent me a shell from the Upper Coal-Measures of 

 Dalziel (Lanarkshire), which he said was the only Pecten that he 

 had ever seen in the Coal-Measures of the West of Scotland. 

 This specimen proved to be Syncyclonema carboniferum, and is of 

 importance as showing the wide horizontal distribution of the 

 species. Probably others will be found in the Lancashire and 

 Cumberland Coalfields, if a thorough search is carried out. 



Psetjdamusitjm fibrillosum (Salter). (PJ. XXXV, fig. 13.) 



This species is redescribed and figured in my Monograph (op. 

 supra cit. p. 106 & pi. xvi, figs. 16-22). Specimens were obtained 

 from the band below the Gin Mine at Kettlebank. It occurs also 

 in the Coal-Measures of Ashton-under-Lyne, 450 feet above the 

 Great-Mine Coal ; in the Coal-Measures of Slieve Carna (Mayo) ; 

 and at various localities in the Pendleside Series. 



Pterinopecten papyraceus (Sow.). (PI. XXXV, fig. 14.) 



This shell occurs at many horizons in the Coal-Measures and 

 Pendleside Series. I regard it of importance as denoting a definite 

 though thick zone, especially at the base, where its presence in- 

 dicates a sudden change in the fauna. Although found in Scotland, in 

 the Carboniferous Limestone Series of East Kilbride, it is, in Ireland 

 and England, limited to the Pendleside Series, Millstone Grit, and 

 Coal-Measures* It occurs in Co. Clare and Derbyshire in beds, which 

 immediately succeed the Carboniferous Limestone with Productus 

 giganteus and a Visean fauna, indicating the sharp faunal change 

 which takes place. 



In the North-Staffordshire Coalfield it occurs: below the Gin -Mine 

 Coal; above the Bay Coal-shale; Longton, the Florence marine bed; 

 at Weston Sprink, the exact horizon being unknown ; above the Seven- 

 Feet Banbury Coal; and in the roof of the Two-Feet and Four-Feet 

 Coals of Wetley Moor. In the Cheadle Coalfield it occurs 50 feet 

 above and upon the Stinking, Coal, and 71 feet below the Four- 

 Feet Coal ; also above the Crabtree Coal of the Goldsitch basin. 



In the Lancashire Coalfield it is abundant over the Bullion Mine, 

 and is found over the Featheredge, the Gannister, and the Bullion 

 Coals of Oldham. Yorkshire Coalfield : over the Hard-Bed Coal. 

 Coalbrookdale Coalfield : over the Pennystone Ironstone. 



Pterinopecten carbonaritjs, Hind, 1904. (PI. XXXV, fig. 15.) 



Pterinopecten carbonarius, Hind, ' Monogr. Brit. Carb. Lamellibr.' vol. ii 

 pt. iii (1904) p. 128 & pi. xxv, figs. 14-16. (Pal. Soc. vol. Iviii.) 



I erected this species on shells obtained from the Cheadle Coal- 



