PERMIAN BRACHIOPODA. 247 
Hast Thicldei/, quarry near the Stockton and Darlington Railway, about three miles 
south-east of Bishop Auckland, in Marl-slate, 2 species ; Lower Limestone, 8 species ; 
Shell-Hmestone, 1 species. 
Midderidge, half a mile east of the last locality. Marl-slate, 1 species ; Lower Limestone, 
1 species. 
Morton Tmmouth, quarry south of the hamlet of that name, Lower Limestone, 1 
species. 
LimeJcihi Banley, quarry near the Roman road, about six miles south of Bishop 
Auckland, Lower Limestone, 2 species. 
6'(2,s^f/(? j£7(/6'^ Z^^/c, Shell-limestone, 1 species. 
Yorkshire. 
Chapel Houses, railway-cutting near farm of that name, two miles west of Pierce 
Eridge, Lower Limestone, 3 species. 
Crakehall, old quarry near the village, two miles north-west of Bedale, Lower Lime- 
stone, 6 species. 
Thornton Watlas, quarry to the south of the village, three miles south of Bedale, 
Lower Limestone, 2 species. 
Nosterfield, quarries near the village well, about three miles east of Masham, Lower 
Limestone, 4 species. 
Wentbridge, road-cutting about five miles south-east of Pontefract, Lower Limestone, 
1 species. 
Hampole, old quarry near the Swan Inn, Hampole, Lower Limestone, 1 species. 
Ilampole Stubhs, on the Doncaster and Waterfield Road, a little west of Little John's 
Well, Lower Limestone, 1 species. 
Garmundwag, Lower Limestone 1 species, Shell-limestone I species. 
Brodsioorth, old quarries to the west of the village, which is about five miles west of 
Doncaster, Lower Limestone, 1 species. 
ThrisUngton Gap, in Marl-slate, 2 species. 
Conisborough, five miles south of Doncaster, quarry near the west end of the village. 
Lower Limestone, I species. 
Northumberland. 
Whitley quarries, two miles north of North Shields, Lower Limestone, 4 species. 
Tynemouth, Lower Limestone, 7 species. 
It would appear from an examination and enumeration of the species occurring in 
each locality that it is in the Lower and Shell limestones that the larger number of species 
