22 
THE SPECIES OF BLASTOIDEA 
PJucleocrmus hallii, L. Vanuxem, 1842: v. Nucleocrinus elegans. 
Nucleocrinus lucina, J. Hall, 1862, 15th Eep. State Cab. Nat. Hist. 
N.Y. p. 148, pi. i, f. 16. Elceacrinus lucina (Hall) : E. Etheridge fil. 
Sr P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. p. 216. 
-. Middle Devonian, Hamilton Group : New Buffalo, Iowa, H.S.A. 
[E. 8175.] T. A. Worthen Coll. A theca. 
Nucleocrinus lucina (Hall): H. Montgomery, 1881 : v. Nucleo- 
crinus elegans. 
Nucleocrinus lucina, var. canadensis (Montgomery) : E. Etheridge 
fil. & P. H. Carpenter, 1886 : v. Nucleocrinus elegans, 
Nucleocrinus meloniformis. Elceacrinus meloniformis, W. H. Barris, 
1883, Eep. Geol. Surv. Illinois, vii, p. 361. 
Nucleocrinus obovatus. Elceacrinus obovatus , W. H. Barris, 1883, 
Eep. Geol. Surv. Illinois, vii, p. 358. 
Elceacrinus sp., “ tray possibly belong to E. obovatus , Barris”: E* 
Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. 
p. 219. Devonian: N. America. [E. 822.] An anal interradius, 
undoubtedly of this species. 
-. Middle Devonian, Hamilton Group : Alpena, Michigan, U.S.A. 
[E. 1826.] Wachsmuth & Springer Coll. A perfect theca. 
Nucleocrinus venustus, S. A. Miller & W. E. E. Gurley, Dec. 1893, 
Bull. Illinois Mus. iii, p. 63, pi. vi, ff. 26-30. 
Nucleocrinus verneuili. Pentremites verneuili, G. Troost, 1841,6th 
Geol. Eep. State Tennessee, p. 14. Pentremites verneuilii, Troost: A. D. 
d'Orhigny, 1849, Prodr. Pal. Strat. i, p. 102. Olivanites verneuli , nom. 
nud., G. Troost, 1849, Amer. Journ. Sci. viii, p. 419. Elceacrinus verneuili 
(Troost): C. E. Eoemer, 1851, Arch. Naturges. ,xvii (i), p. 379, pi. viii, 
f. 1. Nucleocrinus verneuili (Troost) : S. S. Lyon & S. A. Casseday, 
1859, Proc. Amer. Acad, iv, p. 295. Elceacrinus verneuili (Troost): 
E. Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. 
p. 216. See also Nucleocrinus conradi and Pentremites carioides. 
Elceacrinus verneuili (Troost) : E. Etheridge fil. & P. H. Carpenter, 
1886, Cat. Blastoidea Brit. Mus. pp. 35, 56, 74, 216, pi. xviii, f. 16, 
and most probably ff. 17, 18 Lower Devonian, Corniferous Lime¬ 
stone : Ealls of the Ohio, Kentucky, H.S.A. [E. 20.] J. Tennant 
Coll. A theca. 
■-. Lower Devonian, Corniferous Limestone : Louisville, Kentucky, 
H.S.A. [E. 819.] J. Morris coll. Two good thecas, one weathered 
theca, and a piece of a test. The two former are said to be figured 
in E. Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. 
Mus. pi. xviii, ff. 17, 18; but see under E. 20. 
Elceacrinus verneuili (Troost) : E. Etheridge fil. & P. H. Carpenter, 
1886, Cat. Blastoidea Brit. Mus. pp. 215, 218, pi. xvii, f. 19. Lower 
