10 HYDROZOA. 



CCELENTERATA. 



HYDROZOA. 



Callograptus radiatus, J. Hopkinson, Rep. Brit. Assoc. (1872), 

 p. 108, and Q. J. G. S. xxxi (1875), pi. xxxvi, f. 8 a, b, p. 665. 

 Lower Arenig. Fig. 8 a, from noHh of Trwyn-hwrddyn, White- 

 sand Bay. Presented by J. Hopkinson, Esq., F.G.S. Fig. 8 h, 

 from Road-uchaf Ramsey Island. Presented by D. Homfray, 

 Esq. 



C. salteri, Hall, J. Hopkinson, Q. J. G. S. xxxi (1875), pi. xxxvi, 



f. 10, p. 667. Middle Arenig ; Whitesand Bay. Presented by 

 J. Hopkinson, Esq. F.G.S. 



Climacograptus scalaris, Hall. Diplograptus 7-ectangularis, F. 

 McCoy, A. M. N. H. ser. 2, vi (1850), p. 271, and Contrib. 

 Brit. Pal. (1854), p. 155, and Brit. Palseoz. Foss. (1851), pi. i B, 

 f. 8—10, p. 8. Birkhill Shales ; Moffat. 



Dendrograptus arbuscula, Salter, Cat. (1873), p. 21. Middle 

 Arenig; Whitesand Bay. Presented by Dr H. Hicks, F.R.S. 



Other specimens, J. Hopkinson, Q. J. G. S. xxxi (1875), 

 pi. xxxvi, f. 5 a, b, p. 663. Lower Arenig; fig. oa from 

 Whitesand Bay,f. 5 b,from Eoad-iichaf, Ramsey Island. Pre- 

 sented by Dr H. Hicks. 



D. persculptus, J. Hopkinson, Q. J. G. S. xxxi (1875), pi. xxxvi, 

 f. 4 a—d, p. 663. Lower Arenig; creek north of Trtvyn- 

 hwrddyn, Whitesand Bay. Presented by Dr H. Hicks, F.R.S. 



D. ramsayi, J. Hopkinson, Q. J. G. S. xxxi (1875), pi. xxxvii, 

 f. 2 a, 2 b, p. 664. Lower Llandeilo ; Abereiddy Bay. Pre- 

 sented by Dr H. Hicks. 



D. serpens, J. Hopkinson, Q. J. G. S. xxxi (1875), pi. xxxvii, f. 3, 

 p. 665. Lower Llandeilo; Abereiddy Bay. Presented by Dr 

 H. Hicks. 



Dictyograptus (Desmograptus) cancellatus, J. Hopkinson, 

 Q. J. G. S. XXXI (1875), pi. xxxvi, f. 11, p. 668. Lower Arenig; 

 north of Trwyn-hwrddyn, Whitesand Bay. (Counterpart of the 

 type.) Presented by J. Hopkinson, Esq. F.G.S. 



