Hypa. 



298 



HypanthoGrinites cmlatus. Eucalyptocrinus cselatus. F5. 

 Hypanthocrinites deoorus. Eucalyptocrinus dec orus. VI, 

 Ilypurites longifolius. See Asterophyllites equiseti- 

 f or mis. XIII, 



IdithyoGrinus Icevis. See Cyatliocrinus pyriformis. Vb. 

 Ichthyocrinus subangularis. See Appendix. 

 Ichthyodorulite (fish spine). Hall, pages 174, 175, figs. 69, 



,K 







70, 6, 7; Vanuxem page 132. 

 fig. 31, 4. Upper Ilelderherg 

 formation. (Not so abundant 

 in western as in middle New 

 York.) — YIII a. — This seems 

 to be the lowest formation in N. 

 Y. in which vertebrate remains 

 have been seen, viz. the Onon- 

 daga limestone^ but such spines 

 have been collected from the 

 next oyevlymgCorniferous lime- 

 stone. (Vanuxem, 1842 ) 



