I06 SMITHSONIAN INSTITUTION 



PLATE L 

 (All figures on this plate are natural size) 



^ PAGE 



Figs. I, 3. Eutaxocrinus ithacensis (Williams) 367 



Fig. I. The principal type specimen; a mature, flattened crown with nearly complete stem, and root 

 encrusting upon a large Spirif er ; anterior view. This root was separated from the 

 stem in collecting, but they were found together, along with a number of other stems 

 of this species, and the root undoubtedly belongs either to this specimen, or to another 

 one close beside it in the colony. Cornell University, Ithaca, New York. 

 3. Younger specimen ; irregular in having a single IBr in one ray. Author's collection. 

 Portage Gr. ; Upper Devonian. Ithaca, NeAV York. 



Figs. 2, 4, 5. Eutaxocrinus alpha (Williams) 368 



Figs. 2, 4. Supposed types of Taxocrinus ithacensis var. alpha Williams, in Cornell University 

 Museum; 2 is anterior view; 4 is left posterior, and shows the posterior basal. The 

 specimens are in form of natural moulds. Ithaca, New York. 

 5. A very young specimen with stem nearly complete; showing juvenile character in the 

 elongate, barrel-shaped distal columnals ; natural mould. New York State Museum, 

 Albany. Avoca, New York. 



Chemung Gr. ; Upper Devonian. New York. 



Figs. 6-g. Eutaxocrinus curtus (Williams) 369 



Fig. 6. The type; cast from a natural mould, as preserved in Cornell University Museum; arms 

 with very slender branches distally. It is a young specimen, with but two or three 

 thin columnals next to the calyx; the apparent prongs toward the distal end do not 

 belong to this stem. Ithaca, New York. 



7. Another young specimen, perhaps of this species, with alternating columnals next to calyx. 



Same locality. Author's collection. 



8. Mature individual with well-developed stem, somewhat flattened distally ; cast from natural 



mould. New York State Museum, Albany. Avoca, New York. 



9. Crown of similar specimen in same collection, posterior view ; anal area compressed, and 



tube plates clinging to r. post. ray. Same locality. 

 Chemung Gr. ; Upper Devonian. New York. 



Fig. 10. (?) Eutaxocrinus amplus n. sp 370 



Fig. 10. The type ; cast from a natural mould. University of Chicago. 



Chemung Gr. ; Upper Devonian. Binghamton, New York. 



Figs. 11-19. Eutaxocrinus fletcheri (Worthen) 371 



Fig. II. Worthen's t3'pe; a rather small specimen somewhat injured. University of Illinois. 



12. A mature, slightly compressed crown, original of W. and Sp., Geol. Surv. 111., VIII, pi. 15, 



fig. 6; with nearly complete stem, unshaded part being restored from another speci- 

 men. Anterior view ; showing iBr in 3 axils. Author's collection. 



13. Another mature crown, slightly flattened ; posterior view, shoAving anal tube passing into 



perisome. Author's collection. 



14. Mature crown, with almost natural contour ; r. post, radial view, showing same structures 



as last, also iBr, illBr, and illlBr. Author's collection. 



15. Large flattened crown, 1. post, view; showing perisome at right of anal tube, and form of 



post. B. Author's collection. 



16. Smaller crown, flattened; r. ant. view, showing iBr plates. Author's collection. 



17. Anterior view of smaller flattened specimen, with one primary iBr, and none in the higher 



axils. Author's collection. 



18. Base of another specimen ; showing IBB in place, nearly equal in size. Author's col- 



lection, 

 ig. Another base, with IBB removed, showing the space occupied by them, and the size of their 

 inner surface. Author's collection. 



Kinderhook Gr. ; Lower Carboniferous. LeGrand, Iowa. 



Fig. 20. Eutaxocrinus montanensis n. sp 372 



Fig. 20. Posterior view of specimen from nearly equivalent strata near Elder, Montana. U. S. 

 National Museum. 



