l'^2 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



Eehinospkaeritii I, u. s., Hall, 1851, pi. xxv, flg.s. 3 a, 6 208-209 



Crinoideon, or Oyttidece 209 



/ , pi. XXV, figs, ia-c 209 



Murchigonia major, n. s., Hall, 18.51, pi xxvi, figs. 1 a-c 209-21i> 



Asaphim barrandi, n. s.. Hall, IHOl. pi. xxvii, figs. 1 a-d, and pi. xxviii 210-211 



Harpeg escanabice, u. s.. Hall, 18.51, pi. xxvii, tig. 'la 211-212 



Phacops callicephalus, pi. xxvii, tigs. 3 a, 6 212 



Calenipura gracilis, n. s.. Hall, 18,")1, pi. xxix, figs. 1 a, & 212-213 



Sarcinula / obnoleta, n. s.. Hall, 1851, pi. xxix, fig. 2 a,b 21 ii 



ModiolopgiK plioladiformis, ii. a., Hall, 1851, pi. xxx, tigs. 1 a-*, and pi. xxxi, flg. 1 213-214 



Modiolopsix iitodiolaris, Hall, pi. xxsi, tigs. 2 a-d 214-215 



Ambonychia carinata. Hall, pi. xxxi, fig. 3 21.'i 



CLINTON GROUP. 



Tracks and trails of vertebrates ? 21.5-218 



Tracks of Crustaceans ? 219-220 



NIAGARA GROUP. 



Muronia vertebralia, Stokes, pi. xxxiv, tig. 1 221 



Huronia annvlata, n. s.. Hall, 1851, pi. xxxiv, fig. 4 221-222 



Diseosorus conoideus, pi. xxxiv, figs. 2 and 3 222-223 



UPPER HELDERBERG LIMESTONES. 



Dietyonein a fenestrata, pi. xxxv, tigs. 1 a,b 223-224 



Proetvs \ , Hall, 1851, pi. xxxv, flg. 2 224 



J'hacops anchiops, pi. xxxv, tigs, 'i a.b 224-225 



LIST OF FOSSILS. 



•General remarks on the above list 229 



Table of the number of species of fossils found in the State of New York and the Lake 

 Superior district 230 



3. 



Hall, James. Letter ffom Professor James Hall, of New York, coutaiuiug observa- 

 tions on the Geology and PaliBontology of the country traversed by the expedition, 

 and notes upon .some of the Fossils collected ou the route. <^Exploration and 

 Survey of the Valley of the Great Salt Lake of Utah, including a reconuaissauce 

 •of a new route through the Rocky Mountains, by Howard Stansbury. Aiipendix 

 JE, pp. 398-414, pis. i-iv. Philadelphia, laCvi. 



CORALS. 

 4}yath()phyUidea'. Page. 



Faiyiphylbi in I rugosum, u. s.. Hall, 1852, pi. i, tigs. 1 a, 6 407-40K 



Zaphrentin ! in ultilain ella, n. s., Hall, 1852, pi. i, tig. 2 408 



Zaphrentix gtansbiirii, Hall, n. s., 1852, pi. i, figs. 3 a,b 407 



Litliogtro[n]Hon (sp. indet.). Hall, 18.52. pi. i, flg. 4 a,b 408 



£raehiopoda. 



Terebratula mbtiUta, n. s.. Hall, 1852, pi. iv, figs. 1 «, b, 2 a, 6 409 



Spirifer hciiiiplicata, n. s., Hall, 1852, pi. iv, figs. 3 (i, 6 409 



S. octoplicata ! pi. iv, fig. 4 u, i 409-410 



(S. tci^ii"c(i<fT, Hall, II. s, 1852, pi. iv, flga. 5 n-c 410 



Chonetes variolata, ( D'Orb. sp. ) DcKouinck, pi. iii, tigs. la,b 410 



Prnductiis cogtatiig' DeKoninck, pi. iii, flg. 2 411 



P. geiiiireticulatus, UcKoniiick pi. iii, figs. 3-5 a,b 411 



Pruductus (sp. indct.). Hall, 1852, pi. iii, flg. 4 411 



Orthig umbraculum 1 pi. iii, flg. 6 412 



^cephala. 



Avicula! custa. pi. ii, tig.s. \ a,b 412 



Tellinoinyn proteiign. Hall, n. s., 1852, pi. ii, flg. 3 412 



Ci/pricardln occidfiiitalis, ii. s.. Hall, 1852, pi. iv, flg. 2 412 



All'irisina trrminalis. n. s.. Hall, 1852, pi. ii, figs. 4 a,b 413 



A. niicvln arata.n. s., Hall, 18,52, pi. ii, flgs. 5 a.b 413 



Oasteropoda. 



Pleurotoniaria coronida, n. s.. Hall, 18.52, pi. ii, flgs. 6 a-d 413-414 



Euomphalui gvbplamis, n. a.. Hall, 1852, pi. ii, flgs. 7 a,b 414 



