TABLE V. 



A. 



NEW SPECIES OF CRINOIDEA 01' THE CARBONIFEROUS LI3IEST0NE. 



Tail. V. A, Fig. 1. Platyi-rinus discoidciis (N. S.) Biii'lington, Iowa. 

 a. Basal view. 



//. Side view, sliowing the form of the articulatiug surface for the arms. 

 " Fig. 2. Platycrimts corriigaius (N. S.) Burlingtoii, Iowa. 



a. Basal view, with several joints of column attached. 



'■. /). Side view, showing the form of the first cuneiform jomi oftlie arm.5. 

 " r. Detached scapular plate. 

 '/. ■' basal plate. 



c. Scapular plate, enlarged, showing the corrugated surface. 

 " Fig. Mcgislocrinus Evansii (N. S.) Burlington, Iowa. 

 " a. Side view of the body, natural size. 



b. Basal aspect, showing the form of the basal and first scries of plates. 

 " Fig. '1. Platycrinus planus (N . S.) Burlington, Iowa. 



" a. View of the face of a specimen of medium size. 



" /). View of a large specimen, from Burlington, Iowa. 



'• c. Detached basal plate. 

 " Fig. 5. Platyrrimis Burlinglonensis (N. S.) Burbngton, Iowa. 

 " Fig. 6. Platycrinus Yanddlii (N. S.) Burlington, Iowa. 



" a. Side view. 

 /). Basal view. 



'■ Fig. S. Cyatbocrinus cornutus (N. S.) Burlington, Iowa. 



■' a. Side view. 

 b. Basal aspect. 

 " Fig. 'J. Dichocrums mains (N. S.) Burlington, Iowa. 



'■ a. View of the face, exhibiting a fragment of an arm attached to one ol' the su[)erior plates. 



'* b. Basal plate, exhibiting its bi-partite character. 

 " Fig. 10. Dii'hocrinus striatus (N. S.) Burlington, Iowa. 



■■ a. View of the side, showing the longitudinal stri;e rumiiiig over the surface of the plates. 



" b. Basal plate, exhibiting the division. 

 " Fig. 11. Cyaihocrinus lowensis (N. S.) Burlington, Iowa. 



'■ a. Basal aspect. 



" b. View of the side. 



■■ c. Detached superior plate, showing the corrugated surface. 

 " Fig. 12. Actinocriiius unicoi'ims (N. S.) Burlington and Augusta, Iowa. 

 " a. Basal view. 



" b. Side view, exhibiting the position of the motUh, and the central spnious capital plate. 

 '■ Fig. 13. Pentremites Norwoodii (N. S.) Burlington and Augusta, Iowa. 

 (J. Basal view. 

 " b. View of the summit. 

 " c. View of the side. 

 " Fig. 11. Pentremites melo (N. S.) Burlington, Iowa. 



a. View of the summit, exhibiting the apertures. 

 " b. Basal view. 

 " c. Side view. 



" Fig. 15. Pentremites latcrniforniis (N. S.) Mill Creole, Randolph County, Illinois. 

 " Fig. 16. Pentremites stelliformis (N. S.) Burlington, Iowa. 



" a. View of the summit, exhibiting its stardike contour and the oval aperture. 



" /). Side view. 



