INTRODUCTION. 55 



49. MiLi.KR, S. A., " Description of Some New and remarkable Crinoids and other 



Fossils of the Hudson River Group," ' Journ. Cincinnati Soc. Nat. 

 Hist.,' vol. iv, pp. <39— 77, pi. i, 1881. 



50. " Description of a beautiful Starfish and other Fossils," ' Jom-n. Cincinnati 



Soc. Nat. Hist.,' vol. vii, pp. 34—44, 1884. 



51. " Description of Two New Genera and Eight New Species of Fossils from 



the Hudson River Group," 'Journ. Cincinnati Soc. Nat. Hist.,' 

 vol. V, pp. o4 — 44, pis. i, ii, 1882. 



52. MtJLLER, JoH, in F. Zeiler u. Ph. Wirtgen, " Bemerk. Petref. altern devon. 



Gebirge am Rheine etc.," 'Verh. naturh. Ver. preuss. Rheinl.,' 

 Jahrg. 12, pp. 1 — 78, pis. i — ixa, 1855. 



53. Neumayr, M., " Morphologische Studien iiber fossile Echinodermen," ' Sitzb. 



k. Akad. Wiss. Wien,' vol. Ixxxiv, pp. 143 — 176, pis. i, ii, 

 1881. 



54. Nicholson, H. A., and Etheridue, R., jun., 'A Monograph of the Silurian 



Fossils of the Girvan District in Ayrshire, with Special Reference to 

 those contained in the ' Gray Collection,' fasc. iii (" Annelida and 

 Echinodermata "), 1880. 



55. QuENSTEDT, F. A., ' Petrefaktenkuude Deutschlands,' vol. iv, " Asteriden und 



Encriniden, etc.," Leipzig, 1876. 



56. Raymond, P. E., " On the Nature of the so-called ' Covering Plates ' in Froto- 



jKilgeaster narrmuayi," ' The Ottawa Naturalist,' vol. xxvi, pp. 105 — 

 108, 1912. 



57. Salter, J. W., " On Some New Palaeozoic Starfishes," ' Ann. Mag. Nat. Hist.' 



[2], vol. XX, pp. 321—334, pi. ix, 1857. 



58. " Additional Notes on Some New Pala30zoic Starfishes," ' Ann. Mag. Nat. 



Hist.' [3], vol. viii, pp. 484—486, 1861. 



59. 'Catal. Foss. Mus. Pract. Geol.,' 1865 (Manuscript). 



60. ScHONDORF, F., " tJber Archxasterias rhenana Joh. Midler, und die Poren- 



stellung palaozoischer Seesterne," ' Centralbl. f. Min.,' pp. 741 — 750, 

 1907. 



61. • " Uber einen fossilen Seestern, Spaiilaster latiscutatns, Sandb. spec, 



aus dem Naturhistor. Mus. zu Wiesbaden," ' Jalirb. nassauisch. 

 Ver. f. Naturk.,' 60 Jahrg., pp. 170—176, 1907. 



62. " Palseozoische Seesterne Deutschlands, 1. Teil, Die echten Asteriden 



der rheinischen Grauwacke," ' PalseontogT.,' vol. Ivi, pp. 37 — 112, 

 pis. vii— xi, 1909. 



63. " Die fossilen Seesterne Nassaus," ' Jahrb. nassauisch. Ver. f. Naturk.,' 



62 Jahrg., pp. 7—46, pis. ii— v, 1909. 



64. " Organisation und Aufbau der Armwirbel von Oiiij chaster,'' ' Jahrb. 



nassauisch. Ver. f. Naturk.,' 62 Jahrg., pp. 47 — 63, pi. vi, 1909. 



