WRITINGS OF C. D. WALCOTT. 191 



Page. 



M. oceidens, n. s., Walcott, 1884, pi. i, fig. 5, and pi. xl, figs. 14, 14 a 77-78 



M. pogonipensis, n. s., Walcott, 1884, pi. i, fig. 6, and pi. xl, flg. 13 78 



Gasteropoda. 



Baphigtoma, Hall 78 



B. nasoni, Hall, 1861, pi. xi, figs. 21,21 a 78-79 



Murchisonia, D'ArcIiiac and De Vernouil 79 



M.milleri, Hall? 1877, pi. i, figs. 12, 12 a, & 79-80 



Pleurotomaria, Defrance 80 



P. lonensis, n. s., Walcott, 1884, pi. xi, fig. 22 80 



Helicotoma, Salter 81 



Helicotoma, sp. ? Walcott, 1884 , 81 



Maclurea, Le Sueur 81 



M. annulata, n. s., Walcott, 1884, pi. xi, figa. 19, 19 a 81-82 



M. suhannulata, n. .s., Walcott, 1884, pi. xi, figa. 18, 18 a, 6 82 



M. carinata, n. s., Walcott, 1884, pi. xi, figs. 20, 20 a 82-83 



Maclurea, sp. ? Walcott, 1884 83 



Metoptoma, Phillips 83 



M. phillipsi, n. s., Walcott, 1884, pi. i, flga. 4,4 a 83-84 



M. 1 analoga, n. a., Walcott, 1884, pi. i, figs. 11, 11 a 84 



CyrtoliUs, Conrad 84 



O. simiatus, H. & W., 1877 84 



Pteropoda. 



Coleoprion, Sandberger 85 



0. minnta, n. s., Walcott, 1884, pi. xi, figs. 17, 17 a, and pi. xii, flg. 21 85 



HyoUthes, Eich wald 85 



H. vanuxemi, n. a., Walcott, 1884, pi. xi, figs. 16, 16 a, & 85-86 



Cephalopoda. 



Orthocerata, \A. xii, figs. 1, 1 a-e, 2, 3 86 



Endoceras proteiform^,'R'A\\l 1847, pi. xii, figs. 1, 1 o-c 86 



Orthoceras multicameratum, 'S-aM.I 1847, pi. xii, fig. 3 86 



Orthoceras, sp. ? Walcott, 1884, pi. xii, fig. 2 86 



Endoceras muUitubulatum, Hall ? 1847 87 



Orthoceras, Walcott, 1884, pi. xii, fig. 1 b and flga. 1, 2, p. 87 87 



Crustacea. 



Leperditia, Rouault 88 



L. bivia, White, 1874 88 



Beyriohia, McCoy 88 



Beyriehia, sp.? Walcott, 1884 88 



Plwnulites, Barrande 88 



Paecilopoda 89 



Dicellocephalus, Owen 89 



D.finalis, n. s., Walcott, 1884, pi. xii, flga. 12, 12 a, 6 89-90 



D. inexpeclans, n. s., Walcott, 1884, pi. i, flg. 10 90 



Ptychoparia , Corda 91 



P. ? annectatis, n. a., Walcott, 1884, pL xii, fig. 18 91 



Bathyurus, Billings 91 



B. f tuburcxdatus, n. a., Walcott, 1884, pl.xii,flg.9 91-92 



B. ? congeneris, U.S., Walcott, 1884, pi. xii, flg. 8 92-93 



B. ? simillimus, n. .s., Walcott, 1884, pi. xii, flg. 11 93 



Cyphaspix, Bnrmeister 93 



C? brevimarginatxis, U.S., Walcott, 1884, pi. xii, fig. 10 93-94 



Amphion, Pander 94 



A. nevadensis, n. a., Walcott, 1884, pi. xii, flg. 13 94 



Oeraurus, Green ; 95 



Geraurus ? Walcott, 1884, pi. xii, flg. 17 95 



Symphynurus, Goldfuaa 95 



S.? goldfu.isi, n.a., Walcott, 1884, pi. xii, flg. 16 95 



Barrandia, McCoy 96 



.B. mccoyi, n.a., Walcott, 1884, pi. xii, flg. 5 96 



Barrandia ? ap. ? Walcott, 1884, pi. xii, flg. 6 96-97 



Illcenurus, Hall 97 



1. eurekensis, n. s., Walcott, 1884, pi. xii, flga. 4, 4 a 97-98 



Asaphus, Brongniart 98 



A. caribouensis, n. s., Walcott, 1884, pi. xii, flga. 7, 7 o, 6 9? 



4. ? curiosa, Billinga, 1805, pi. xii, flg. 15 98 



