BRACHIOPODA. 59 



Rhynchonella acuminata (Martin), T. Davidson, Brit. Foss. 

 Brach. n, part V (1861), pi. xx, f. 5, 7, 8, p. 93. Carboniferous 

 Limestone; Settle. Burrow Collection. 



R. acuminata (Martin) var. mesogona (Phillips). Atrypa tri- 

 angularis, J. de C. Sovverby, Trans. Geol. Soc. ser. 2, v (1840), 

 pi. liv, f. 9. Rhynchonella triangularis (Sowerby), T. Davidson, 

 Brit. Foss. Brach. in, part vi (1865), pi. xiii, f. 5, p. 60. Hemi- 

 thyris acuminata var. mesogona (Phillips), F. McCoy, Brit. 

 Palaeoz. Foss. (1852), p. 381. Upper Devonian; Petherwin. 



R. angulata (Linnaeus), T. Davidson, Brit. Foss. Brach. II, part 

 v (1861), pi. 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), pi. 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), pi. Ivi, f. 24. Devonian; 

 Plymouth. 



R. elliptica?, Schnur, T. Davidson, Brit. Foss. Brach. iv (1881), 

 pi. xxxviii, f. 23, p. 342. Budleigh Salterton Pebble Bed. 

 Presented by A. Wyatt Edgell, Esq. 



R. flexistria (Phillips), T. Davidson, Brit. Foss. Brach. n, part 

 v (1861), pi. xxiv, f. 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. Palseoz. Foss. (1855), pi. iii D, 

 f. 19 a c, p. 440. Carboniferous Limestone; Derbyshire. 



R. hopkinsi [McCoy MS.], T. Davidson, Brit. Foss. Brach. I, part 

 iii (1852), pi. A, f. 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), 

 pi. xxviii, f. 17, 17 a, b, p. 216. Cornbrash ; Scarborough. 

 Leckenby Collection. 



R.? maccoyana, T. Davidson, Brit. Foss. Brach. v (1883), p. 161. 

 Porambonites intercedes, Pander, T. Davidson, ibid, in, part 

 vii (1869), pi. xxv, f. 1719 (not pi. xxvi, f. 3), p. 195. Bala 



