Missouri Palaeontology. — Rowley. 311 
Orophocrimis coiiiciisf W. & Sp. 
Fig. 21. Side view of a specimen apparently of this species. 
Orophocrinus s'telliformisf O. & S. 
Figs. 22, 23, 24. Side and summit views of an apparently young 
specimen. 
Pentremites conoideus Hall. 
Fig. 25. Side view of a robus specimen with slightly concave base. 
Fig. 26. Side view of an elongate specimen with convex base. 
Metablastus hipyramidalis Hall. 
Fig. 28. Side view of a small specimen preserving the pinnules. 
Metablastus lineatus Shumard. 
Fig. 27. Side view of a small specimen, with detached column near. 
Fig. 29. Side view of a small specimen, preserving the test, natural 
size. 
Fig, 30. Side view of a medium sized internal cast, natural size. 
Cadaster gracillinnis Rowley. 
Figs. 31, 32. Side views of tv/o different specimens, natural size. 
Mesohlastus kirkwoodensis? Shumard. 
Figs. 2Z> 34- Side and summit views of the same specimen, natural 
size. 
Cadaster superbus, n. sp. 
Figs. 35, 36. Side and summit views of the type, a natural cast, 
natural size. 
Cadaster lacviciilus Rowley. 
Fig. 2>7- Side view of a specimen preserving the test, natural size. 
Fig. 38. Side view of a natural cast of this species, natural size. 
Fig. 39. Side view of a natural cast, doubtfully identified, natural 
size. 
.Cadaster grandis Rowley. 
Figs. 40, 41. Side and summit views of a natural cast, natural size. 
