18 
THE SPECIES OE BLASTOIDEA 
Mesoblastus rofei. Acentrotremites sp., E. Etheridge fil. & P. H. 
Carpenter, 1883, Ann. Mag. Eat. Hist. (5) xi, p. 233. Mesoblastus 
rofei, E. Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Erit. 
Mus. p. 188. 
“ Acentrotremites . . . fragment . .. collected in Derbyshire by the late 
Mr. Eofe.” E. Etheridge fil. & P. H. Carpenter, 1883, Ann. Mag. 
Eat. Hist. (5) xi, p. 233. Mesoblastus rofei , “ Clitheroe, Lancashire,” 
E. Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. 
Mus. pp. 49, 188, 235, pi. iv, ff. 3, 4. C. Lower Carboniferous, 
Carboniferous Limestone : England l . [E. 783.] Presented by J. 
Eofe. A mutilated theca. 
Mesoblastus ? shumardi (Meek & Worthen), Etheridge & Carpenter, 
1886 : v. Schizoblastus ? shumardi. 
Mesoblastus sowerbyi. Granatocrinus elongatus (pars), E. Etheridge 
fil. & P. H. Carpenter, 1882, Ann. Mag. Eat. Hist. (5) ix, p. 239 (non 
Cumberland). Mesoblastus sowerbii, E. Etheridge fil. & P. H. Carpenter, 
1886, Cat. Blastoidea Brit. Mus. p. 187; also on pp. 49, 50, 187, 
erroneously as Mesoblastus elongatus. 
Mesoblastus sowerbii, E. Etheridge fil. & P. H. Carpenter, 1886, Cat. 
Blastoidea Brit. Mus. pp. 15, 60, 104, 187, pi. vi, ff. 12-14, ph viii, 
If. 5, 6 (also erroneously as Mesoblastus elongatus on p. 49). <T. 
Lower Carboniferous, Carboniferous Limestone : Bolland, Lancashire, 
England. [E. 780.] Gilbertson Coll. A fairly preserved theca. 
Mesoblastus elongatus , E. Etheridge fil. & P. H. Carpenter, 1886, Cat. 
Blastoidea Brit. Mus. pp. 50,187, pi. xi, f. 15. Lower Carboniferous, 
Carboniferous Limestone : Bolland, Lancashire, England. [E. 8039.] 
Gilbertson Coll. A theca really belonging to M. sowerbyi. 
METABLASTUS, E. Etheridge fil. & P. H. Carpenter, 1886, Cat. 
Blastoidea Brit. Mus. p. 196. Type-species— M. lineatus. 
Metablastus bipyramidalis. Pentremites bipyramidalis , J. Hal], 
1858, Eep. Geol. Surv. Iowa, i (2), p. 607, pi. xv, f. 2. Troostocrinus 
bipyramidalis (Hall) : B. E. Shumard, 1866, Trans. Acad. Sci. St. Louis, 
ii, p. 384, footnote. Metablastus bipyramidalis (Hall) : E. Etheridge 
fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. p. 200. 
Metablastus cottaldi. Belemnocrinus cottaldi, E. Munier-Chalmas, 
1876, Journ. Conchyl. (3) xvi, p. 105. Belocrinus cottaldi (Mun.- 
Chalmas): E. Munier-Chalmas, 1881, Bull. Soc. geol. Erance (3) ix, 
p. 503. Troostocrinus vel Pentremiticlea cottaldi (Mun.-Chalmas): 
E. Etheridge fil. & P. H. Carpenter, 1883, Ann. Mag. Eat. Hist. (5) 
xi, p. 245. Metablastus cottaldi (Mun.-Chalmas) : E. Etheridge fil. & 
P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. p. 201, pi. v, f. 22. 
1 The Registers throw no light on the discrepancy between the two quotations from 
Etheridge & Carpenter. 
