144 TRILOBITA. 



Cyphaspis megalops (McCoy), J. W. Salter, Organic Remains, 

 dec. VII (Mem. Geol. Survey, 1853), pi. v, f. 2, 7. Wenlock 

 Limestone; Dudley. Fletcher Collection. 



Another specimen, H. A. Nicholson and R. Etheridge jun., 

 Mon. Sil. Foss. Girvan i, fascic. ii (1880), p. 140. May Hill 

 Beds ; Mulloch Quarry, near Girvan. 



Deiphon forbesi, Barrande, J. W. Salter, Mon. Brit. Tril. (1865), 

 pi. vii, f. 11, p. 88. Wenlock Limestone; Dudley. Fletcher 

 Collection. 



Dikelocephalus (Centropleura) fVirca, J. W. Salter, Appendix 

 to A. C. Ramsay, Geol. North Wales (1866), pi. vi, f. 4, p. 303, 

 and ibid, second edition (1881), p. 497. Lower Tremadoc; 

 ' Penmorfa. Presented by D. Homfray, Esq. 



Diplorhina tnplicata ?, v. Agnostus m'coyi. 

 Dysplanus centrotus, v. Illajnus bowmanni. 

 Eccoptochile sedgwicki, v. Cheirurus sedgwicki. 



Encrinurus multiplicatus, Salter, Cat. (1873), p. 51. Middle 

 Bala ; Bai-king, Dent. 



E. punctatus (Wahlenberg). Cybele punctata, T. W. Fletcher, 

 Q. J. G. S. VI (1850), pi. xxxii, f. 2, 3, 5, p. 403. Wenlock 



Shale ; Malvern. Fletcher Collection. 



E. sexcostatus (Salter), J. W. Salter, Appendix to F. McCoy, Brit. 

 Palseoz. Foss. (1855), p. iv. Zethus sexcostatus, F. McCoy, ibid. 

 (1851), pi. i G, f. 6, 7, p. 157. Middle Bala; Rhiwlas. 



Erinnys venulosa, Salter, H. Hicks, Q. J. G. S. XXVIII (1872), 

 pi. vi, f. 1 — 4, 6, p. 177. Menevian Beds; f. 1 — 4 from 

 Forth -y-rhaw, St Davids, presented by Dr H. Hicks. Figs. 5, 

 6, from the Waterfall Valley, Maentwrog, f. 6 presented by 

 D. Homfray, Esq. 



Griffithides acanthiceps, H. Woodward, Brit. Carb. Tril. (1883), 

 pi. vi, f. 2, 10, pi vii, f. 3, p. 32, and G. M. dee. 2, X (1883), 

 p. 483. Carboniferous Limestone ; Settle. 



G. mesotuberculatus, v. Phillipsia eichwaldi var. mucronata. 



G. moriceps, H. Woodward. Brit. Carb. Tril. (1884), pi. vii, f. 9— 



11, p. 39, and G. M. dec. 2, x (1883), p. 487. Carboniferous 



Limestone ; Settle, 



