BRACHIOPODA. 59 
Rhynchonella acuminata (Martin), T. Davidson, Brit. Foss. 
Brach. Il, part V (1861), pl. xx, f. 5, 7, 8, p. 93. Carboniferous 
Limestone ; Settle. Burrow Collection. 
R. acuminata (Martin) var. mesogona (Phillips). <Atrypa tri- 
angularis, J. de C. Sowerby, Trans. Geol. Soc. ser. 2, v (1840), 
pl. liv, £9. Rhynchonella triangularis (Sowerby), T. Davidson, 
Brit. Foss. Brach. 111, part vi (1865), pl. xin, f. 5, p. 60. Hemi- 
thyris acuminata var. mesogona (Phillips), F. McCoy, Brit. 
Paleoz. Foss. (1852), p. 381. Upper Devonian ; Petherwin. 
R. angulata (Linneus), T. Davidson, Brit. Foss. Brach. 1, part 
v (1861), pl. xix, f. 16, 16 a,b, p. 107. Carboniferous Lime- 
stone; Settle, Yorkshire. Burrow Collection. 
R. antidichotoma (Buvignier), T. Davidson, Brit. Foss. Brach. 
Iv (1874), pl. viii, f 20, p. 65. Lower Greensand; Upware. 
The specimen does not quite agree with the figure. 
R. cuboides (Sowerby). <Atrypa cuboides, J. de C. Sowerby, 
Trans. Geol. Soc. ser. 2, V (1840), pl. lvi, fi. 24. Devonian ; 
Plymouth. 
R. elliptica?, Schnur, T. Davidson, Brit. Foss. Brach. tv (1881), 
pl. xxxvii, f. 23, p. 342. Budleigh Salterton Pebble Bed. 
Presented by A. Wyatt Edgell, Esq. 
R. flexistria (Phillips), T. Davidson, Brit. Foss. Brach. U1, part 
v (1861), pl. xxiv, £5, 5 a, p. 105. Hemithyris heteroptycha, 
F. McCoy, A. M. N. H. ser. 2, x (1852), p. 424, and Contrib. 
Brit. Pal. (1854), p. 251, and Brit. Paleeoz. Foss. (1855), pl. 111 D, 
f. 19 a—c, p. 440. Carboniferous Limestone ; Derbyshire. 
R. hopkinsi [McCoy MS.], T. Davidson, Brit. Foss. Brach. 1, part 
i (1852), pl. a, £. 20, 20 a, 21, 21 a, d, p. 97, and Appendix 
p- 21. Great Oolite; Minchinhampton? (Probably from 
France.) 
R. leedsi | Walker MS.], T. Davidson, Brit. Foss. Brach. Iv (1878), 
pl. xxvii, f. 17, 17 a, b, p. 216. Cornbrash ; Scarborough. 
Leckenby Collection. 
R.? maccoyana, 1’. Davidson, Brit. Foss. Brach. v (1883), p. 161. 
Porambonites intercedens, Pander, T. Davidson, ibid. 1, part 
vil (1869), pl. xxv, f. 17—19 (not pl. xxvi, f. 3), p.195. Bala 
