EXPLANATION OF PLATES. 



PLATE. 51. PAGE 



BATOCRINUS MAGNIROSTRIS, N. Sp. (Rowley) 170 



FIGS. 1-2-3 — Ventral, side and dorsal views of the type specimen. 



BATOCRINUS IRREGULARIS, Casseday, Rowley. 171 



FIGS. -1-5-6 — Ventral, anal side and dorsal views of a small specimen. 



BATOCRINUS DAVISI, Rowley. 171 



FIGS . 7-8-9 — Ventral, anal side and dorsal views of a specimen. 



BATOCRINUS CRASSITESTUS, N. Sp. TRowIey) 172 



FIGS . 10-11-12 — Ventral, side and dorsal views of the type specimen. 



BATOCRINUS DAVISI, Var. Lancsvillensis, N. Sp. fRowley) 172 



FIGS . 13-14-15 — Ventral, anal side and dorsal views of the tj^pe. 



BATOCRINUS ICOSIDACTYLUS, Casseday, Rowley. 173 



FIGS. 16-17-18 — Ventral, anal side and dorsal views of a fine speci- 



men, 



BATOCRINUS ICOSIDACTYLUS, Casseday, Rowley. 174 



FIGS. 19-20-21 — Ventral, side and dorsal views of a small specimen 

 with a portion of the ventral tube attached. 



FIGS. 24-25 — Views of two detached ventral tubes. 



FIG. 26 — Side view of a ventral disk with the base of the ventral tube. 



FIGS. 27-28 — Basal and side views of the dorsal cup of a large speci- 

 men. 



BATOCRINUS DAVISI, Var. Sculptus, N. Var. TRowley) 174 



FIGS. 22-23 — Side and dorsal views of a slightly crushed specimen. 



