60 BRACHIOPODA. 



Beds; Wrae Quarry, Peebleshire. Fig. 17 is the only specimen 

 which can be identified with certainty. 



Rhynchonella multiformis (Roemer), T. Davidson, Brit. Foss. 

 Brach. iv (1874), pi. viii, f. [22 ? missing] 23, p. 63. Lower 

 Greensand (Tealby Series) ; Claxby. 



R. nasuta (McCoy), T. Davidson, Brit. Foss. Brach. Ill, part vii 

 (1869), pi. xxiii, f. 19, 19 a, b, p. 173. Hemithyris nasuta, 

 F. McCoy, A. M. N. H. ser. 2, viii (1851), p. 393, and Contrib. 

 Brit. Pal. (1854), p. 215, and Brit. Palteoz. Foss. (1852), pi. i L, 

 f. 5, 5 a, p. 203. Middle Bala ; Craig Head, Girvan. 



R. pleurodon (Phillips). Atrypa fallax, J. de C. Sowerby, 

 Trans. Geol. Soc. ser. 2, v (1840), pi. liv, f. 15. Upper Devo- 

 nian; Petherwin, 



R. subdentata (Sowerby), T. Davidson, Brit. Foss. Brach. in, part 

 vi (1865), pi. xiii, f. 15, p. 62. Atrypa subdentata, J. de C. 

 Sowerby, Trans. Geol. Soc. ser. 2, v (1840), pi. liv, f. 7. Hemi- 

 thyris subdentata, F. McCoy, Brit. Palseoz. Foss. (1852), p. 383. 

 Devonian ; Petherwin, 



R. subtetrahedra, T. Davidson, Brit. Foss. Brach. I, part iii (1852), 

 pi. xvi, f. 10, p. 95. Inferior Oolite ; Dundry, Walton Collec- 

 tion. This specimen is missing. 



R. speetonensis, T. Davidson, Brit. Foss. Brach. iv (1874), pi. viii, 

 f. 32, p. 69. Speeton Clay ; Speeton. This specimen is missing. 



R. tetrahedra, v. Rhynchonella subdecorata. 



R. subdecorata, T. Davidson, Brit. Foss. Brach. I, part iii, Ap- 

 pendix (1852), p. 21. R. tetrahedra (Sowerby), T. Davidson, 

 Brit. Foss. Brach. I, part iii (1852), pi. xviii, f. 10, p. 93. 

 Inferior Oolite ; Cheltenham. Walton Collection. This speci- 

 men is missing. 



R. walkeri, T. Davidson, Brit. Foss. Brach. iv (1874), pi. viii, 

 f. 33, p. 68. Lower Greensand (Tealby Series) ; Claxby. 



R. wilsoni (Sowerby) var. davidsoni (McCoy). Hemithyris 

 davidsoni, F. McCoy, A. M. N. H. ser. 2, vin (1851), p. 392, 

 and Contrib. Brit. Pal. (1854), p. 214, and Brit. Palaeoz. Foss. 

 (1852), p. 200. Upper Ludlow; Burton and Brockton. 



