BRACHIOPODA. 63 
Spirifera trigonalis (Martin), T. Davidson, Brit. Foss. Brach. 
Ir, part v (1863), pl. 1, f. 6, 7, p. 222. Carboniferous Limestone ; 
Settle, Yorkshire. Burrow Collection. 
S. grandicostata, F. McCoy, A. M. N. H. ser. 2, x (1852), 
p- 422, and Contrib. Brit. Pal. (1854), p. 250, and Brit. Palsoz, 
Foss. (1855), pl. iii D, f. 29 a, b, p. 417. T. Davidson, Brit. 
Foss. Brach. II, part v (1858), pl. v, f. 38, 39, p. 33. Probably 
a variety of S. trigonalis (Martin), Davidson, ibid. p. 222, and 
tbid. IV (1880), p. 276. Carboniferous Limestone ; Derbyshire. 
S. urei, Fleming, T. Davidson, Brit. Foss. Brach. 1, part vi 
(1864), pl. iv, £26, p.41. Atrypa unguiculus, J. de C. Sowerby, 
Trans. Geol. Soc. ser. 2, V (1840), pl. liv, f. 8. Upper Devonian; 
Petherwin. 
S. verneuili, Murchison. 8S. disjuncta, J. de C. Sowerby, Trans. 
Geol. Soc. ser. 2, v (1840), pl. li, f. 8 (Barnstaple), pl. liv, 
f. 12, 138 (Petherwin). T. Davidson, Brit. Foss. Brach. 1, 
part vi (1864), pl. v, f 1 (Petherwin), f. 2 (Barnstaple), p. 23. 
S. gigantea, J. de C. Sowerby, loc. cit. pl. lv, f. 1—4 (Tintagel). 
Devonian ; Barnstaple, Petherwin, and Tintagel. 
Spiriferina cristata (Schlotheim) var. biplicata, T. Davidson, 
Brit. Foss. Brach. 1, part v (1863), pl. lu, f. 11, [12? missing], 
p. 226. Carboniferous Limestone ; Settle. Burrow Collection. 
S. laminosa (McCoy). Spirifer laminosa, F. McCoy, Brit. Palaeoz. 
Foss. (1855), p. 426. T. Davidson, Brit. Foss. Brach. It, part 
v, (1858), pl. vii, f. 21, 22, p. 36. Carboniferous Limestone ; 
Derbyshire. 
Spondylobolus craniolaris, v. Athyris obovata. 
Streptorhynchus gigas (McCoy), T. Davidson, Brit. Foss. 
Brach. 11, part vi (1865), pl. xvi, f. 1, p. 83. Strophomena 
gigas, F. McCoy, A. M. N. H. ser. 2, voit (1851), p. 485, and 
Contrib. Brit. Pal. (1854), p. 236. Leptena (Strophomena) 
gigas, F. McCoy, Brit. Palweoz. Foss. (1852), pl. 11 A, f. 7, p. 386. 
Devonian ; Looe. . 
Streptorhynchus? persarmentosus (McCoy), T. Davidson, 
Brit. Foss. Brach. m1, part vi (1865), pl. xvi, f. 5, p. 84. Orthis 
persamentosa, F. McCoy, A. M,N. H. ser. 2, vit (1851), p. 484, 
