HYDROZOA. 11 
Dictyograptus homfrayi, J. Hopkinson, Q. J. G. S. xxx1 (1875), 
pl. xxxvi, f. 13, p. 668. Lower Arenig ; Road-uchaf, Ramsey 
Island. Presented by D. Homfray, Esq. 
Didymograptus bifidus (Hall), J. Hopkinson, Q. J. G. S. xxx1 
(1875), pl. xxxiii, f. 8 d, p. 646. Upper Arenig ; Porth-hayog, 
St Davids. Presented by Dr H. Hicks. 
D. euodus, C. Lapworth, Q. J. G. S. xxxr (1875), pl. xxxv, fi 1 
a—c, p. 645. Lower Llandeilo; Abereiddy Bay. Presented 
by Dr H. Hicks. 
D. extensus (Hall), J. Hopkinson, Q. J. G. S. xxxr (1875), pl. 
xxx, f. 1 a—d, p. 642. Lower Arenig ; Road-uchaf, Ramsey 
Island. Presented by J. Hopkinson, Esq. 
Another specimen, J. Hopkinson, A. M. N. H. ser. 5, 1x 
(1882), p. 56, woodcuts 3,3 a. Skiddaw Slates; Randal Crag, 
Skiddaw. Dover Collection. 
D. furcillatus, C. Lapworth, Q. J. G. S. xxxt (1875), pl. xxxv, 
f. 3b, c, p. 649. Lower Llandeilo; Abereiddy Bay. Presented 
by Dr H. Hicks. The specimen does not quite agree with the 
figure. 
D. gibberulus, H. A. Nicholson, A. M. N. H. ser. 4, xvi (1875), 
pl. vii, f. 3, 3 a, b, p. 271. Skiddaw Slates; fig. 3 from 
Randal Crag, fig. 3 a, b, from White Horse Fell, Siciddaw. 
Dover Collection. 
D. latus, Salter, Cat. (1873), p. 20. Graptolites latus, F. McCoy, 
Q. J. G. S. Iv (1848), p. 223, woodcuts. Portions of various 
Dichograptid stipes, H. A. Nicholson, Q. J. G.S. xxiv (1868), 
p- 141. (Exclude the specimens described by McCoy from 
the Wenlock Shale, Builth, v. Monograptus priodon.) Skiddaw 
Slates ; Knockmurton. 
D. murchisoni (Beck), C. Lapworth, Q. J. G. S. xxx (1875), 
pl. xxxv, f 2 a [b, f,?missing], p. 648. Lower Llandeilo ; 
Abereiddy Bay. Presented by Dr H. Hicks. 
D. pennatulus (Hall), J. Hopkinson, Q. J. G. S. xxx1 (1875), 
pl. xxx, f. 3 a, e, p. 643. Lower Arenig; Road-uchaf 
Ramsey Island. Presented by J. Hopkinson, Esq. F.G.S. 
