WRITINGS OF JAMES HALL. 233 



Hall, James. Descriptious #ud Notices of the Fossils collected upon the route. 

 <Rep. ExpLs. and Survs. from the Missi.ssipin River to the Pacific Ocean, vol, 

 iii. No. 1, general report upon the geological collections, chapter ix, pp. 99-105, 

 pis. i and ii. Washington, 1856. 



CRETACEOUS bFECIES. 



I Page. 



Gryi)hita, Lamarck 99 



O.plUheri, Morton, 1834, pi. i, flgs. 1-6 99-100 



6. pitcheri, var. navia, Hall, 1856, (pi. i, flgs. 7-10) * 100 



Ostrea, Linnaeus 100 



O. co?iflies«a, Conrad, 1843, pi. i, fig. 11 100-101 



CARBONIFEROUS SPECIES. 



TcrehraUila [Ljliwyd 101 



T. niillepvnctata, n. s.. Hall, 1856, pi. 11, flgs. 1,2 101 



T. subtilita, Hall, pi. ii, flgs. 3-5 101 



Spirifer, Ho-v^eihy 101 



S. liiieat-wi, pi. ii, flgs. 6-8 101-102 



iS. kentuckensis, Shumard, 1855, pi. ii, figs. 10, 11 102 



S. ca?«cra<M«, Morton, 1836, pi. ii, fig8.9, 12,.13 102-103 



Prodvctus, Sowerby 103 



P. seviireticulatus, Martin, 1809, pi. ii, flgs. 16, 17 103 



P. rogersi, Norwood & Praiten, 1854, pi. Ii, flgs. 14, 15 ; 104 



' Imperfect specimens, the specific characters of which are obscure or indeterminable.. 104-105 



Hall, James. Ueology and PaUeontolgy of the Boundary. <U. S. and Mex. Bound- 

 ary Survey. Report of William H. Emory, vol. i, part ii, pp. 101-140, and 144- 

 146, pis. i and xx and xxi pars. Washington, 1H57. 



The fossils figured on pL xx were apparently named by James Hall, but no descriptions 

 accompany them. 



Colinnnaria Ihoiiiii, n. s.. Hall, 18.57, pi. xx, flgs, 1 a-d. 

 Terebratiila mexicana, n. s., Hall, 1857, pi. xx, flgs. 2 a-c. 

 Orthis arachnoides, n. s., Hall, 1857, pi. xx, figs. 3 a, 6. 

 Huomphnlus michleraniis, a. s., Hall, 1857, pi. xx, flg. 4. 

 Asaphiis emoryi, n. s.. Hall, 1857, pi. xx, fig. 5. 



Tin; K<liirioderms in this report are described l)y Professor Hall. 



Page. 



Pyrinet Parry i, n. s.. Hall, 1857, pi. i, figs. 1 a-d 144-145 



Toxaster texMiux, Roemer, pi. i, figs. 2 a-o 145 



Cyphosoina t£ocanum, Roemer, pi. i, figs. 3 a-c 145 



Holectppas pla.natug, n. s., ? Hall, 1857, pi. i, flgs. 4 a-f 14.5-146 



Toxasti'r cler/ans, Shumard, sp. pi. xxi, figs. 1 a-e 146 



< Gryphea Pitcheri, (Mort.), Hall is figured on pi. xxi, flgs, 3 rt-c, but its locality is not menti(ined 



and it is not described. 



6. 



Hall, James, aud Whitfield, R. P. Pahieoiitology. <Rep. Geol. Expl. 4Uth 

 parallel by Clarence King, vol. iv, part ii, pp. 19ii-30-2, pis. i-vii. Washington, 

 1877. 



FOSSILS OP THE POTSDAM GROUl". 



Brackiopoda. Page. 



Obolella, Bill ^05 



O. discoida,u.s., H. & W., 1877,pl. i, figs, 1, 2 ... 205 



Lingulepis, Hall 206 



^.. //t^m, u.8.,H. & W.,1877,pl. i,flg3,5-7 206 



* These figures are copied from Marcou's flgnres of Gryphoea Pitcheri, Mort., except flg. 10, which is 

 copied from a figure of Marcou's G ryphcfa dilatata. Sow., Bull. Geol. Soc. France, 2d ser. vol. xii. pi. xxi, 

 and Geology of North America, pi. iv. 



