128 CEPHALOPODA. 



Nautilus tuberosus, F. McCoy, A. M. N. H. ser. 2, xii (1853), 

 p. 195, and Contrib. Brit. Pal. (1854), p. 263, and Brit. Palasoz. 

 Foss. (1855), pi. iii H, f. 15, 15 a, b, p. 562. Carboniferotis 

 Limestone; Derbyshire. Presented by W. Hopkins, Esq. 



Onychoteuthis sagittata, v. Plesioteuthis sagittata. 



Orthoceras cf. acuminatum, Eichwald, G. F. Whidbome, De- 

 vonian Fauna S. Eng. (1890), pi. xii, f. 7, p. 152. Middle 

 Devonian; Lummaton. 



O. angulatum, Wahlenberg. 0. bacchus, Barrande, J. F. Blake, 

 Brit. Foss. Ceph. part i (1882), pi. ix, f. 7, p. 111. Lmver 

 Ludlow ; Dudley. Fletcher Collection. 



0. angulatum, v. Orthoceras canaliculatum. 



O. annulatum, Sowerby, var. crassum, Foord. 0. annulatum, 

 J. F. Blake, Brit. Foss. Ceph. part i (1882), pi. iv, f. 1, 5, p. 89. 

 Wenlock Limestone ; Dudley. Fletcher Collection. 



O. araneosum ?, Barrande, J. F. Blake, Brit. Foss. Ceph. part i 

 (1882), p. 125. Endoceras proteiforme, Hall, H. A. Nicholson, 

 G. M. IX (1872), p. 103, woodcut. Skelgill Beds; Skelgill. 

 Presented by Prof. H. A. Nicholson. 



O. arcuoliratum ?, Hall, F. McCoy, Brit. Palseoz. Foss. (1852), 

 p. 319. J. F. Blake, Brit. Foss. Ceph. part i (1882), pi. iii, 

 f. 14, p. 84. Middle Bala ; Wrae Quarry, near Broughton. 



O. avelinei, Salter. 0. caereesiense, H. Hicks, Q. J. G. S. xxxi 



(1875), pi. xi, f. 8, 9, p. 189. Llanvirn Beds; Llanvim Quarry. 

 Presented by Dr H. Hicks. 



0. bacchus, v. Orthoceras angulatum. 



O. baculiforme, J. W. Salter, Appendix to F. McCoy, Brit. Palseoz. 

 Foss. (1855), p. vi. F. McCoy, ibid. (1852), pi. i L, f. 27, 27 a, 

 p. 313. Salter, Cat. (1873), p. 187. J. F. Blake, Brit. Foss. 

 Ceph. part i (1882), pi. xv, f. 3, 3 a, p. 160. Upper Ltidlotu ; 

 Brigsteer, Westmoreland. 



O. barrandei, Salter, J. F. Blake, Brit. Foss. Ceph. part i (1882), 

 pi. xviii, f. 10, p. 79. Phragmoceras (Oomphoceras) liratum, 

 Salter, Cat. (1873), p. 174. Lower Ludlow ; Garden Quarry, 

 Aymestry. 



