50 BRACHIOPODA. 



Brach. in, part vi, (1864), pi. iii, f. 17, p. 17. Upper Devonian; 

 South Devon. 



Athyris expansa (Phillips), T. Davidson, Brit. Foss. Brach. n, 

 part v, (1861), pi. xvii, f. 3, 4, p. 82. Carboniferous Limestone*; 

 Settle. Burrow Collection. 



A. globularis (Phillips), T. Davidson, Brit. Foss. Brach. II, 

 part v (1861), pi. xvii, 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'Eveille'), T. Davidson, Brit. Foss. Brach. n, 

 part v (1861), pi. 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. Palaeoz. Foss. (1855), pi. iii D, f. 20*, 20* a, 6, c, 

 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), pi. Ivi, f. 19. A. desquamata var. compressa, J. de C. 

 Sowerby, ibid. (1840), pi. Ivi, f. 21. Middle Devonian; Ply- 

 mouth. 



A.fallax, v. Rhynchonella pleurodon. 



A. flexuosa, J. E. Marr and H. A. Nicholson, Q. J. G. S. XLIV 

 (1888), pi. xvi, f. 20, 20 a, b, p. 725. Lower Skelgill Beds (zone 

 of A. fleayiiosa}; Skelgill. Presented by J. E. Marr, Esq., M.A. 



A. hispida, v. Athyris concentrica. 



A.? scotica (McCoy), T. Davidson, Brit. Foss. Brach. in, part 

 vii (1867), pi. xiii, f. 31, 31 a, b, p. 140. Hemithyris hemi- 

 sphwrica (Sowerby) var. scotica, F. McCoy, Brit. Palseoz. Foss. 

 (1852), pi. i H, f. 10, 10 a, b, p. 202. Lower Llandovery; Mullock 

 Quarry, near Girvan. 



A. striatula, v. Orthis interlineata. 



A. subdentata, v. Rhynchonella snbdentata. 



