CYSTIDEA. 43 



Echino-encrinus ar mains, E. Forbes, Mem. Geol. Survey, II part ii 

 (1848), pi. xviii, p. 507. Wenlock Shale; Walsall and Mahern. 

 The description and figures of this species are taken in part 

 from the specimens in the Museum. 



Echinosphaera davisi (McCoy). Carocystites davisi, F. McCoy, 

 Brit. Palseoz. Foss. (1855), pi. i D, f. 5, 5 a, [6 ? missing], p. 61. 

 Coniston Limestone ; Coniston. 



Lepadocrinus bifasciatus (Pearce). Pseudocrinites bifasciatus, 

 E. Forbes, Mem. Geol. Survey n, part ii (1848), pi. xi, p. 496. 

 Wenlock Limestone; Dudley. Fletcher Collection. The de- 

 scriptions and figures given by Forbes of this and the next 

 species, are taken in part from the specimens in the Museum. 



Ii. quadrifasciatus (Pearce). Pseudocrinites quadmfasciatus, 



E. Forbes, Mem. Geol. Survey II, part ii (1848), pi. xiii, p. 48. 



Wenlock Limestone; Dudley. Fletcher Collection. See note 



to the preceding species. 

 Protocystis meneviensis, H. Hicks, Q. J. G. S. xxvm (1872), 



pi. v, f. 19, p. 180. Menevian Group; Porth-y-rhaw, St 



Davids. Presented by Dr H. Hicks, F.R.S. 

 Prunocystis fletcheri, E. Forbes, Mem. Geol. Survey II, part ii 



(1848), pi. xvi, f. 14, p. 503. Wenlock Limestone; Dudley. 



Fletcher Collection. 



Pseudocrinites bifasciatus, v. Lepadocrinus bifasciatus. 

 P. quadrifasciatus, v. Lepadocrinus quadrifasciatus. 



BLASTOIDEA. 



Codonaster acutus, v. Codonaster trilobatus var. acutus. 



Codonaster trilobatus, [Codaster, McCoy], F. McCoy, A. M. N. 

 H. ser. 2, in (1849), p. 251, and Contrib. Brit. Pal. (1854), 

 p. 112, and Brit. Palseoz. Foss. (1851), pi. iii D, f. 8, 8 a, p. 123. 

 Carboniferous Limestone ; Derbyshire. Presented by W. Hop- 

 kins, Esq. 



C. trilobatus, var. acutus, McCoy. C. acutus, F. McCoy, A. M 

 N. H. ser. 2, in (1849), p. 251, and Contrib. Brit. Pal. (1854) 



