64 BRACHIOPODA. 
and Contrib. Brit. Pal. (1854), p. 235, and Brit. Palaeoz. Foss, 
(1852), pl. ii A, £9, p. 385. Devonian; Polruan, Cornwall. 
Stricklandinia lens (Sowerby), T. Davidson, Brit. Foss. Brach. 
Ill, part vii (1867), pl. xix, f. 23, p. 161. Pentamerus nucroca- 
merus, F. McCoy, A. M. N. H. ser. 2, vit (1851), p. 290, and 
Contrib. Brit. Pal. (1854), p. 212, and Brit. Palzeoz. Foss. 
(1852), p. 210, woodcuts. Llandovery Beds; Mandinam, and 
May Hill. 
Stringocephalus burtini, Defrance, T. Davidson, Brit. Foss. 
Brach. 11, part vi (1864), pl. ii, f. 9,9 a, p. 11. Unceites levis, 
F. McCoy, A. M. N. H. ser. 2, vit (1851), p. 483, and Contrib. 
Brit. Pal. (1854), p. 234, and Brit. Palseoz. Foss. (1852), pl. 11 A, 
f. 6 a—e, p. 380. Devonian; Newton Bushel. 
Another specimen, T. Davidson, ibid. (1864), pl. 11, f. 6, 6 a, b, 
p- 11. Devonian; Woolborough Quarry, Newton Abbot. Walton 
Collection. This specimen is missing. 
Strophomena deltoidea (Conrad) var. undata (McCoy), T. 
Davidson, Brit. Foss. Brach. 1, part vii (1871), pl. xxxix, 
f, 23, 24, p. 295. Leptena deltoidea var. undata, F. McCoy, 
Brit. Palzoz. Foss. (1852), pl. i H, f. 38, 39, 39 a, b, c, p. 234. 
Middle Bala; fig. 38 from Llwyn-y-Ci, f. 39, 39 a, b, from 
Llandeilo, f. 39 ¢ from Bryn-melyn, near Bala. 
S. filosa (Sowerby). Orthis filosa, T. Davidson, London Geol. 
Journal, part ii (1847), pl. xiii, f. 24, p. 62. Wenlock Limestone ; 
Dudley. Fletcher Collection. The specimen cannot be found. 
S. gigas, v. Streptorhynchus gigas. 
S. nobilis, v. Leptzena ? nobilis. 
S. pecten (Linneus). Orthis pecten, T. Davidson, London Geol. 
Journal, part ii (1847), pl. xii, f. 18—23, p. 61. Wenlock 
Limestone; Dudley. Fletcher Collection. The specimens cannot 
be found. 
S. simulans, F. McCoy, A. M. N. H. ser. 2, vit (1851), p. 403, 
and Contrib. Brit. Pal. (1854), p. 225, and [Leptena] Brit. 
Paleoz. Foss. (1852), pl. i u, f. 33, 34, 34 a, [f 35 missing] 
p. 246. T. Davidson, Brit. Foss. Brach. 111, part vii (1871), 
