7 Arachn. 
Systematic. — Trilobita. 
2831 
Geratocephcda narraivayi sp. n. New 
York p. 73 figs. Ordovician, Raymond 
Pittsburg Ann. Carnegie Mus. 7. — 
G. narraway i sp. n. New York, Chazy, 
Raymond Vermont Rep. Geol. 7 
p. 234 fig. 
Ceraurus miseneri sp. n. Indiana 
and Ohio, Cincinnatian, p. 228 figs., 
Foerste Granville Ohio Bull. Sci. 
Lab. Denison Univ. 14. 
Ghuangia gen. n. p. 83, genotype 
C. batia p. 84 pi. xv ff. 3 3a, fragmenta 
p. 84 pi. xv f. 4, nais p. 84 pi. xv 
f. .5, nitida p. 85 pi. xv f. 6, spp. n., 
China, Cambrian, Walcott Smith- 
sonian Inst. Misc. Collect. 57. 
Conocoryphe emargincita var. n. longi- 
frons Cambrian, Shropshire, Cobbold 
London Q. J. Geol. Soc. 67 p. 280 
figs. 
Coosia gen. n. p. 94, superba (geno- 
type) Alabama, Tennessee, p. 94 
pi. xvi figs. 1 la, robusta Tennessee 
p. 97 pi. xvi figs. 2 2a, spp. n., Cam- 
brian, Walcott Smithsonian Inst. 
Misc. Collect. 57. 
Grepicephalus convexus sp. n. p. 79 
pi. xiv figs. 11 11a, China, Cambrian, 
Walcott t.c. 
Gybele prima, Raymond Pittsburg 
Ann. Carnegie Mus. 7 p. 75 figs. 
Denckmannia subg. n. von Glockeria 
fiir Phacops Volborthi, Wedekind Zs. 
D. geol. Ges. 63 p. 323. 
Doropyge lakei sp. n. Cambrian, 
Shropshire, Cobbold London Q. J. 
Geol. Soc. 67 p. 287 figs. 
Emmrichdla subg. n. ( Piychoparia ) 
genotype P. theano p. 79 pi. xiv 
figs. 9 9a, China, Cambrian, Walcott 
Smithsonian Inst. Misc. Collect. 57. 
Euloma bohemicum p. 3, inexspecta- 
tum p. 5, spp. n., Untersilur, Bohmen, 
figs., Holtjb Prag Rozpr. (5esk6 Ak. 
Frant. Jos. 20. 
Glaphurus pustulatus, Raymond Pitts- 
burg Ann. Carnegie Mus. 7 p. 74 figs. 
Glockeria gen. n. fiir Phacops glockeri, 
Wedekind Zs. D. geol. Ges. 63 p. 323. 
Griflithides mucronatus sp. n. Arkan- 
sas, Carboniferous, Girty Ann. New 
York Acad. Sci. 20 p. 238. 
lldiomera sol , Raymond Pittsburg 
Ann. Carnegie Mus. 7 p. 77 figs. 
Hemigyraspis subgen. n. of Niobe 
type Asaphus afjinis p. 41, collieana 
sp. n. Pennsylvania p. 41 figs., Ordo- 
vician, Raymond Pittsburg Ann. Car- 
negie Mus. 7. 
Homalonotus rhenanus hypostome, 
Maillietjx Bruxelles Bui. Soc. geol. 
25 3 Proc. verb. pp. 113-115 figs. 
Illaenus ? cuspidatus sp. n. Unter- 
silur, Bohmen, HOldb Prag Rozpr. 
Cesk6 Ak. Frant. Jos. 20 p. 11 fig. 
Inouyia gen. n. genotype Agraulos 9 
capax p. 80 pi. xiv f. 13, thisbe sp. n. 
p. 81 pi. xiv f. 14, China, Cambrian, 
Walcott Smithsonian Inst. Misc. Col- 
lect. 57. 
Isotdoides gen. n. ( Asaphidae ) p. 35, 
whitfieldi nom. n. pro Asaphus canalis 
Whitfield (type) p. 36 figs., Ordovician, 
Raymond Pittsburg Ann. Carnegie 
Mus. 7. — /. angusticaudus, Raymond 
t.c. p. 68 figs. — I. gen n. type Isotelus 
angusticaudum, RAYMONDVermont Rep. 
Geol. 7 p. 223. — /. homalonotoides, 
Raymond & Narraway Pittsburg 
Ann. Carnegie Mus. 7 p. 52 figs. 
Isotdus platymarginatus sp. n. New 
York, Vermont, p. 66 figs., notes on 
other spp., Ordovician, Raymond Pitts- 
burg Ann. Carnegie Mus. 7. — 1. platy- 
marginatus sp. n. Vermont, Chazy, 
Raymond Vermont Rep. Geol. 7 
p. 225 figs. — I. gigas , Raymond & 
Narraway Pittsburg Ann. Carnegie 
Mus. 7 p. 53 figs. 
Levisia gen. n. genotype Agraulos 
agenor p. 86 pi. xv f. 7, richardsoni 
p. 86 pi. xvii figs. 4 4a, nasuta p. 87 
pi. xvii f. 6 figs. 7 7a, spp. n., Canada, 
Cambrian, Walcott Smithsonian Inst. 
Misc. Collect. 57. 
Lichas praecursor sp. n. Untersilur 
Bohmen, Holtjb Prag Rozpr. 0esk6 
Ak. Frant. Jos. 20 p. 7 fig. 
Lisania gen. n. genotype Anomo- 
cardla bura p. 82 pi. xv f. 2, China, 
Cambrian, Walcott Smithsonian Inst. 
Misc. Collect. 57. 
Microdiscus sp., Cobbold London 
Q. J. Geol. Soc. 67 p. 272 figs. 
Nileus perkinsi sp. n. Vermont p. 69 
figs., Ordovician, Raymond Pittsburg 
Ann. Carnegie Mus. 7. — N. perkinsi 
sp. n. Vormont, Chazy, Raymond 
Vermont Rep. Geol. 7 p. 224 figs.— 
N. pater sp. n. Untersilur, Bohmen 
