50 BRACHIOPODA. 
Brach. It, part vi, (1864), pl. iii, f. 17, p. 17. Upper Devonian; 
South Devon. 
Athyris expansa (Phillips), T. Davidson, Brit. Foss. Brach. 11, 
part v, (1861), pl. xvii, f. 3, 4, p. 82. Carboniferous Limestone ; 
Settle. Burrow Collection. 
A. globularis (Phillips), T. Davidson, Brit. Foss. Brach. 0, 
part v (1861), pl. xvu, f. 16, 16 a, b, 17, 17 a, 18, p. 87. Carbo- 
niferous Limestone ; Settle. Burrow Collection. 
A. gregaria var. trapezoidalis, v. Athyris subtilita. 
A. lamellosa (L’Eveillé), T. Davidson, Brit. Foss. Brach. 11, 
part v (1861), pl. xvii, f. 6,6 a, 7, p. 79. Carboniferous 
Limestone ; Settle. Burrow Collection. 
A. obovata, v. Glassia obovata. 
A. subtilita (Hall). A. gregaria, McCoy, var. trapezoidalis, F. 
McCoy, Brit. Palseoz. Foss. (1855), pl. i D, f. 20*, 20* a, B, ¢, 
p. 435. Carboniferous Limestone ; Kendal. 
Atrypa cuboides, v. Rhynchonella cuboides. 
A. decussata, v. Athyris concentrica. 
Atrypa desquamata, J. de C. Sowerby, Trans. Geol. Soc. ser. 2, 
V (1840), pl. lvi, £19. A. desquamata var. compressa, J. de C. 
Sowerby, zbid. (1840), pl. lvi, f. 21. Middle Devonian ; Ply- 
mouth. 
A. fallax, v. Rhynchonella pleurodon. 
A. flexuosa, J. E. Marr and H. A. Nicholson, Q. J. G. S. XLiIv 
(1888), pl. xvi, f. 20, 20 a, b, p. 725. Lower Skelgill Beds (zone 
of A. flexuosa); Skelgill. Presented by J. E. Marr, Esq., M.A. 
A. hispida, v. Athyris concentrica. 
A.? scotica (McCoy), T. Davidson, Brit. Foss. Brach. m1, part 
vii (1867), pl. xiii, f. 31, 31 a, b, p. 140. Hemithyris hemi- 
spherica (Sowerby) var. scotica, F. McCoy, Brit. Paleeoz. Foss. 
(1852), pl. iu, f.10,10a,b, p. 202. Lower Llandovery; Mullock 
Quarry, near Gurvan. 
A. striatula, v. Orthis interlineata. 
A. subdentata, v. Rhynchonella subdentata, 
