WITH LTST OF SPECIMEN'S. 
9 
[E. 8178.] Worthen Coll, ex G. T. Nealley Coll. Two thecas. 
-. Lower Carboniferous, Lower Burlington Limestone : Louisiana, 
Mo., TJ.S.A. [E. 8007.] R. R. Rowley Coll. Four internal casts 
in chert, two whole thecas in limestone matrix, one free theca. 
-. Lower Carboniferous, Upper (?) Burlington Limestone : Bur¬ 
lington, Iowa, U.S.A. [E. 8100.] Wachsmuth Coll. One theca. 
Cryptoblastus pisum. Granatocrinus pisum, F. B. Meek & A. H. 
Worthen, 1869, Proc. Acad. Nat. Sci. Philadelphia, 1869, p. 89 ; and 
1873, Rep. Geol. Surv. Illinois, v, p. 470, pi. ix, f. 4. Cryptoblastus 
pisum (Meek & Worthen): R. Etheridge fil. & P. H. Carpenter, 1886, 
Cat. Blastoidea Brit. Mus. p. 232. 
Cryptoblastus ? projectus. Pentremites melo, var. projectus , F. B. 
Meek & A. H. Worthen, 1861, Proc. Acad. Nat. Sci. Philadelphia, 1861, 
p. 142. Granatocrinus melo , var .projectus (Meek & Worthen): B. F. 
Shumard, 1866, Trans. Acad. Sci. St. Louis, ii, p. 375. Granatocrinus 
projectus (Meek & Worthen), F. B. Meek & A. H. Worthen, 1868, 
Rep. Geol. Surv. Illinois, iii, p. 496. JSchizoblastus ? projectus (Meek & 
Worthen): R. Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea 
Brit. Mus. p. 223. Cryptoblastus ? projectus (Meek & Worthen) : R. 
Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. 
p. 232. Granatocrinus neglectus (Meek & Worthen) : C. R. Keyes, 1894, 
Rep. Geol. Surv. Missouri, iv, p. 139, is an error depending on a wrong 
reference. 
CRYPTOSCHISM A, R. Etheridge fil. & P. H. Carpenter, 1886, 
Cat. Blastoidea Brit. Mus. p. 280. Type-species— C. schulzi. 
Cryptoschisma schulzi. Pentremites schultzii , E. J. A. d’Archiac & 
P. E. P. de Yerneuil, 1845, Bull. Soc. geol. France (2) ii, p. 479, pi. xv, 
ff. 12 a , b, 13 a, b. Pentremiticlea schultii (d’Archiac & de Yerneuil) : 
A. D. d’Orbigny, 1849, Prodr. Pal. Strat. i, p. 102. Pentatrematites 
schultzii (d’Archiac & de Yerneuil) : C. F. Roemer, 1851, Arch. Naturges. 
xvii (i), p. 369. Cryptoschisma schulzi (d’Archiac & de Yerneuil) : 
R. Etheridge fil. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. 
p. 281. 
Cryptoschisma schulzi (d’Archiac & de Yerneuil): R. Etheridge fil. & 
P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. pp. 90, 281, pi. xviii, 
f. 2. Lower Devonian, Calcaire d’Arnao: Colie near Sabero, Leon 
[not “ Asturias,” as in Explanation of Plate], Spain. [E. 1063 a.] 
Longitudinal micro-section of theca. 
Cryptoschisma schulzi (d’Archiac & de Yerneuil) : R. Etheridge fil. & 
P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. pp. 32, 281, pi. v, 
f. 24. Lower Devonian, Calcaire d’Arnao : Sabero, Leon, Spain. 
[E. 8089.]. 
Cryptoschisma schulzi (d’Archiac & de Yerneuil) : R. Etheridge fil. & 
P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. pp. 21, 281, pi. v. 
