CEPHALOPODA. 129 
Orthoceras barrandei?, v. Cyrtoceras (Meloceras) barrandei. 
O. caereesiense, v. Orthoceras avelinel. 
Orthoceras canaliculatum, Sowerby. 0. angulatum, Wahlen- 
berg, J. F. Blake, Brit. Foss. Ceph. part i (1882), pl. vu, fi 4, 
9, p. 106. Wenlock Limestone ; Dudley. Fletcher Collection. 
O. cornu-vaccinum, F. McCoy, A. M. N. H. ser. 2, x11 (1853), 
p. 196, and Contrib. Brit. Pal. (1854), p. 265, and Brit. Palzeoz. 
Foss. (1855), pl. ii H, f. 17, 17 a, b, p. 568. Carboniferous 
Limestone ; Lowick. 
O. dimidiatum, Sowerby, J. F. Blake, Brit. Foss. Ceph. part i 
(1882), pl. vi, f. 11, p. 103. F. McCoy, Brit. Palzeoz. Foss. 
(1852), p. 314. O. dimidiatum, var., Salter, Cat. (1873), p. 173. 
Lower Ludlow ; Leintwardine. 
O. elongatocinctum, Portlock, young specimen, J. F. Blake, 
Brit. Foss. Ceph. part i (1882), pl. xiii, f. 8, 8a, p.119. Middle 
Bala; Barking. 
O. (Cycloceras) flemingi, F. McCoy, A. M. N. H. ser. 2, XII 
(1853), p. 196, and Contrib. Brit. Pal. (1854), p. 264, and Brit. 
Paleoz. Foss. (1855), pl. ii H, f. 18,18 a, b, p. 569. Carboni- 
ferous Limestone ; Lowich. 
O. fluctuatum, Salter, Cat. (1873), p. 37. O. reticinctum ?, J. F. 
Blake, Brit. Foss. Ceph. part i (1882), p. 122. Llandeilo Beds; 
Wellfield, Builth. 
O. ibex, Sowerby, J. F. Blake, Brit. Foss. Ceph. part 1 (1882), 
pl. v, f. 5, p. 95. Upper Ludlow ; Benson Knot. 
O. ludense, Sowerby, J. F. Blake, Brit. Foss. Ceph. part 1 (1882), 
pl. x, f. 5, p. 156. Lower Ludlow ; Leintwardine. The spe- 
cimens do not agree well with the figure. 
O. politum, F. McCoy, A. M. N. H. ser. 2, vir (1851), p. 46, and 
Contrib. Brit. Pal. (1854), p. 181, and Brit. Paleeoz. Foss. (1852), 
pl. iL, f. 30, 30a, p. 316. J. F. Blake, Brit. Foss. Ceph. part 1 
(1882), pl. ix, £1, 2,2a,b,p.141. Bala Series ; Glenwhapple. 
O. primevum (Forbes), J. F. Blake, Brit. Foss. Ceph. part 1 
(1882), p. 148. Creseis primeva, E. Forbes, Q. J. G. 8. 1 (1845), 
p. 146, woodeut 1. Denbighshire Flags ; Cefn-ddu. 
(Poterioceras) pyriforme, v. Gomphoceras neglectum. 
W. C. 9 
GO; 
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