273 



Hede. 



Hederella ? Specimen 901-1 (00, p. 238), Sherwood's coll. 

 Tioga county iron ore bed, Upper Chemung^ VIII g^ 



Heliolites elegans ? Hall. (Pal. Vol. 2,) Oollett's 1881, 



Inct.181 



upper surface ; species not certain. Niagara, — Vh. 



Heliolites interstinctus. {Madrepora interstincta. Lin- 



neus, 1767, Sys. Is at.). Oollett's Indiana Report of 1882, page 

 252, plate 2, fig. 1, upper view (nat. size); fig. 2, top surface 

 and vertical section; fig. 3, upper surface enlarged. (Van 

 Oieve).— Common in Indiana, Kentucky, Tennessee and found 

 in other States, always in the Niagara strata^ VI. 

 Heliophyllum acuminatum. (Hall, 35th An. Et. N. Y. 



Museum, p. 450). CoUett's In- 



f^j^ diana Rt. 1882, page 310, plate 



26, fig. 11. — Ontario. Cornif. 



limestone.) VIII a. 



The space at the bottom of the 



■^^ \^ ^^^ ^r-:trf^^ '^''^ '' ''''''^^^' ^""^ ^ strongly 

 ^ W^ '^^r/tfr/^^^^ groove (fossette) ex- 



y^^ tends from it upward to the 



-M& 



Jnd. /m. 





> 





front edge ; lamellae, 80, alter- 

 nating in size, strongly toothed. 



18 



