CRINOIDEA FLEXIBILIA 1 57 



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Fig. 10. Eutaxocrinus pulcher n. sp 369 



Fig. 10, Lateral view of flattened crown with part of stem, showing flowing lines and graceful 

 contour. New York State Museum. 

 Chemung; Upper Devonian. Belmont, New York. 



Figs, iin-rf. Rhopalocrinus gracilis (Schultze) 453 



Fig. I Id. Posterior view of the type, with stem as in Schultze's original figure. The infrabasal 



suture here shown, inadvertently copied from Schultze, is incorrect; the base is 



undivided. Mus. Comp. Zool., Harvard. 

 lib. Right posterior view of same, with ray and upper part detached, showing the strong 



ventral tube or sac. X 2. 

 I If. Inner side of detached part, showing in oblique cross-section continuation of the ventral 



sac. X 2. 

 lid. Left anterior interradial view of entire crown, showing interbrachial plates. Note the 



shortness of the first IBr. X 2. 



Middle Devonian. Pelm, Eifel, Germany. 



Figs. 12, 13. Synerocrinus incurvus Trautschold 336 



(Also on Plate XLII) 



Fig. 12. A mature, flattened specimen; showing occurrence of this Russian species in Scotland. 

 Coll. James Wright, Jr. Roscobie. 



13. A young specimen from Ardross. Same collection. 



Hurlet limestone, top of Lower Carboniferous. Fifeshire, Scotland. 



Fig. 14. Onychocrinus wrighti n. sp 438 



Fig. 14. Posterior view of the type. Coll. James Wright, Jr. 



Hurlet limestone, top of Lower Carboniferous, Inverteil, Scotland. 



Fig. 15. Onychocrinus pulaskiensis Miller and Gurley 437 



Fig. 150. Distal face of a large radicular cirrus-bearing stem ossicle, showing" mode of attachment 

 of the irregularly disposed cirri, here three in number ; surface crenulae arranged in 

 two series, the cirrus crenulae in the triangular depressions radiating from the cirrus 

 branches of the axial canal, and the stem crenulae in the sub-rectangular positions, 

 radiating from the main axial canal. Shape of the axial canal is modified by the 

 cirrus-canals, which diverge from it obliquely; owing to the presence of only three 

 cirri it is here triangular in general outline, whereas if there were five cirri it would 

 be pentagonal. 

 15&. Lateral view of same, showing cirrus depressions in profile, and deformation of the 

 proximally attached stem ossicle. 

 Kaskaskia Gr. ; Lower Carboniferous. Pulaski Co., Kentucky. 



All specimens in the author's collection unless otherwise stated. 



