283 Hesp. 



Hesperomys ; a jaw, with teeth, of an extinct mouse found 

 in the Port Kennedy cave-earth, Chester Co. See Cope, in 

 Proc. A. P. S. 1871, p. 87. — Postpleiooene ; or glacial ? 



Heterocrinus, juvenis. (Hall, Descrip. New Spec. Pal. 

 rpj-i, 3 a Crinoids, p. 4, 1866 ; 1872, 



^' ^' ^""^ pi. 1, figs. 9, 10.) New- 



berry. Geology of Ohio, 



Newt: Pal- 0. Vol. 1. PM.. Palgeontology, Vol. 1. page 



10, plate 1, fig. 3 a ; perhaps allied to the Cincinnati Hetero- 

 crinus heterodactylus^ but shorter in the arms, which give off 

 a few side armlets, so small as to be mere stout pinnules. It 

 is curious for the excessive disproportion of head to stem. 

 Near Lebanon, O. — Upper Loraine (Hud. Riv. or Cincinnati) 

 formation. — /// h. 



Heterocrinus , Rogers, p. 821 (no figure). /// h. 



Hipparionyx consimilis. See Atrypa reticularis, Va to 



riiig. 



Hipparionyx proximus. See Orthis hipparionyx. VIL 

 Holopea antiqua. {Littorina antiqua.) Hall, page 142, 

 yi fig. 58, 4. Vanuxem, page 112, fig. 23,4. Lower 



^a. Helderberg. In Pennsylvania, Pike Co., found by 



^® Dr. Barrett in Stormville shales (G6, 132) and 



51. 4< Stormville limestone (G6, 134.) — In Bedford Co., 

 Piper's run, Everett, middle of the Lower Helderlerg lime- 

 stone. (T2, 88,196.)— FZ 



Holopea elongata. (Hall, Pal. N. Y. Vol. 3, 1859.— 

 Found by Dr. Barrett at Port J ervis, in the Stormville limestone 

 of 1. C. White, Pike Co., Rt. (G6, p. lU,)— Lower Eelderlerg 

 limestone. VL. 



Holopea obliqua. (Hall, Pal. N. Y. Vol. 1, 1847, Trenton 

 Itcjs.^f'- _£^^ aiid Hudson River) Turbo obliguus^ Em- 



mons, American Geology, I, ii, 1855, p. 

 158, plate 5, figs. 18, 18 a, 18 b (alone 

 used), surface smooth or slightly striated. 

 — Trenton and Hudson River (Loraine) 

 ^____ formation. 7/ c, LlLh. — Hall says that 



EmAG.1855. ^^'^ PI 5, this shell has hitherto been considered a 

 Natica ; and that it occurs only in the upper shaly Trenton 

 beds (page 170.) 



