198 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



Pteropoda. 



Oonularia, Miller 284 



C misaouriensis. Swallow, ? 1860, pi. xxiii, fig. 4 264| 



Hyolithes, Eichwald 2ft41 



H.earbonaria, n. s., Walcott, 1884, pi. xxiii, fig. 3 2641 



Cephalopoda. 



Orthoceras, Breynius 265 i 



O. randolphensis, Worthen, ? 1882, pi. xviii. fig. 17 265 



O. eurekennis, n. 8., Walcott, 1884, pi. xsiii, figs 2, 2 a 265-266 



Orthoceras, sv.J Walcott, 1884 266 



Poecilopoda. 



Orifithides, Portlock 266 



G. portlocki, M. & W., 1865, pi. xxiv, figs 4, 4 a, 6 206-267 



Systematic list of fossils of each geologic formation eU8-28l 



Paleozoic section in Central Nevada 28:1-285 



» 



24. 



Walcott, C. D. — On the Cambriau Faunas of North America; Preliminary studies. 

 <Bull. U. S. Geol. Surv. No. 10, pp. 1-74, pi. i-x. Washington, 1884. 



This contains three parts. The first is a " Review of the fauna of the Saint John formation, 

 contained in the Hartt collection." Mr. Matthew proposed the specific names for the new 

 species excepting for one, Harttia matthewi, the type of the n. g. Harttia, Walcott. Theauthor 

 does not accept the genus Conocephalitei and refers its different species to some of Ptychoparia 

 and one of Gonocoryphe. The following species are mentioned : 



Pago. 



Eocystites, Billings 14, 294 



E.primcevus, Billings, 1868, pi. i, fig. 2 14-15,294-295 



I/ingula, Bruguiere 15, 295 



L. ? dawsoni, n. s., Matthew, MSS.,1884, pi. v, fig. 8 15,295 



Acrothele, Linnarson 15,295 



A. matthewi, Hartt, sp., 1868, pi. i, figs. 4, 4 a 15-16, 295-296 



Obolella, Billings 16,290 



O. tranversa, Hartt, 1868, pi. i, figs. 5, 5 « 16, ! 



Obolella, sp., undt., Walcott, 1884 '. 16-17,296-297' 



Ort/»«, Dalmau 17,297 



O.billinysi, Hartt, 1868, pi. i, figs 1, 1 b-d 17-18,297-298: 



Orthis,? sp., Walcott, 1884, pi. i, fig. 1 « 18,298] 



Harttia, n. g., Walcott, 1884 18-19, 298-299i 



H. matthewi, n. s., Walcott, 1884, pi. i, fig. 3 19, 29»j 



Palceacmea, H. and W. {Stenotheca) 19,299! 



Stenotheca acadica, Hartt, sp., 1868, pi. i, fig. 6 19,299 



Hyulithes, Eichw»ld 20,300 



H.acadica, n. s., Hartt, 8p.,MSS., 1884, pi. ii, fig. 5 ? 20,300 



H.danianm, n. s., Matthew, MSS., 1884, pi. ii, figs. 7 «, b 20-21,300-301 



J5r.micmac,n.. 4., Matthew, MSS., 1884, pi. ii, fig. 6 21-22,301-30? 



AgnostXM, Brongniart 22, 302 



A. acadictis, Hartt, 1868, pi. ii, figs. 2 2 a-c 22-23, 302-303 



Mierodiscus, Emmons 23, 303 



M. dawsoni, Hartt, 1868, pi. ii, figs. 3, 3 « 23, 30 



M.punctatus, Salter, 1864, pi. ii, figs. 1, 1 a-c 24-25, 303-304 



Paradoxideg, Brongniart 25, 305 



P.lamellatus, Hartt, 1868, pi. iii, figs. 2, 2 « 25,305 



P.acadicus, Matthew, 1882, pi. iii, figs. 3, 3 a. 25-27,305-307] 



P.eteminicus, Matthew, 1883, pi. iii, figs. 1, 1 a-g 27,307; 



Gonocoryphe, Corda ..• 28, 308 [ 



O. (Subgenus?), 7«rt«Aewi, Hartt, sp., 18C8, pi. iv, figs. 1,1 a,b 28-30, 308-310 ! 



G.walcotli, Matthew (in lit.), 1884 30-31,310-311 



Bailiella (now subgenus), Matthew, 1884 31-32,311-312 



G.{PailieUa), baileyi, Hartt, sp., 1868, pi. iv, figs. 3,3a; pLv,fig8.7,7o 32-33,312-313 



O. elegant, Hartt, sp., 1868, pi. iv, figs. 2, 2 a, 6 .-. 33-34,313-314 



Ptychoparia, Corda 34-36,314-318 



P.robbi, Hartt, sp., 1868, pi. vi, flgs. 1, 1 o 36-37,316-317 



P.ouangondiana, Hartt, sp., 1868, pi. v, flgs. 4, 4 a-/ , 37-38,317-3181 



