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. 1v (1874), pl. vi, f. [22 ? missing] 23, p. 63. Lower 
Greensand (Tealby Series) ; Claxby. 
R. nasuta (McCoy), T. Davidson, Brit. Foss. Brach. m1, part vil 
(1869), pl. xxii, f. 19, 19 a, b, p. 173. Hemithyris nasuta, 
F. McCoy, A. M. N. H. ser. 2, vitt (1851), p. 393, and Contrib. 
Brit. Pal. (1854), p. 215, and Brit. Paleoz. Foss. (1852), pl. 1 L, 
f.5,5 a, p. 203. Middle Bala; Craig Head, Girvan. 
R. pleurodon (Phillips). Atrypa fallax, J. de C. Sowerby, 
Trans. Geol. Soe. ser. 2, v (1840), pl. liv, f 15. Upper Devo- 
nian; Petherwin. 
R. subdentata (Sowerby), T. Davidson, Brit. Foss. Brach. 111, part 
vi (1865), pl. xii, f. 15, p. 62. Atrypa subdentata, J. de C. 
Sowerby, Trans. Geol. Soc. ser. 2, v (1840), pl. liv, f. 7. Hemi- 
thyris subdentata, F. McCoy, Brit. Paleeoz. Foss. (1852), p. 383. 
Devonian ; Petherwin. 
R. subtetrahedra, T. Davidson, Brit. Foss. Brach. I, part 11 (1852), 
pl. xvi, f. 10, p. 95. Inferior Oolite ; Dundry. Walton Collec- 
tion. This specimen is missing. 
R. speetonensis, ‘I’. Davidson, Brit. Foss. Brach. tv (1874), pl. viii, 
f. 32, p. 69. Speeton Clay; Speeton. This specimen is missing. 
RR. tetrahedra, v. Rhynchonella subdecorata. 
R. subdecorata, T. Davidson, Brit. Foss. Brach. 1, part iu, Ap- 
pendix (1852), p. 21. R. tetrahedra (Sowerby), T. Davidson, 
Brit. Foss. Brach. I, part i (1852), pl. xvii, f. 10, p. 93. 
Inferior Oolite ; Cheltenham. Walton Collection. This speci- 
men 1s missing. 
R. walkeri, T. Davidson, Brit. Foss. Brach. Iv (1874), pl. vin, 
f. 33, p. 68. Lower Greensand (Tealby Series) ; Claaxby. 
R. wilsoni (Sowerby) var. davidsoni (McCoy). Hemithyris 
davidson, F. McCoy, A. M. N. H. ser. 2, vir (1851), p. 392, 
and Contrib. Brit. Pal. (1854), p. 214, and Brit. Palzeoz. Foss, 
(1852), p. 200. Upper Ludlow; Burton and Brockton. 
