198 
INDEX TO NORTH AMERICAN GEOLOGY, 
[BULL. 271 
Paleon tology— Continued. 
Genera and species described— Continued. 
Gemniula nucleata n. sp., Casey, 1. 
obsolescens n. sp., Casey, 1. 
parvidens n. sp., Casey, 1. 
rotsedens Con., Casey, 1. 
tenella Con., Casey, 1. 
Gennseocrinus kentuckiensis (Shumard), 
Wood (Elvira), 1. 
simulans n. sp., Rowley, Greene, 2. 
Genota riversiana n. sp., Raymond (W. J.), 1. 
Gerablattina arcuata n. sp., Sellards, 1. 
Gigandipus E. Hitchcock, Lull, 1. 
caudatus E. Hitchcock, Lull, 1. 
Gilbert ina n. gen., Ulrich, 1. 
spiralis n. sp., Ulrich, 1. 
Gissocrihus? problematicus n. sp., Rowley, 1. 
Gleichenia zippei (Corda) Heer, Berry, 1. 
Globigerina d'Orbigny, Bagg, :'.. 
bulloides d'Orbigny, Bagg, 3. 
cretacea d'Orbigny, Bagg, 3. 
Glossograptus Emmons, Ruedemann, 1. 
echinatus n. sp., Ruedemann, 1. 
bystrix n, sp., Rueaemann, 1. 
Glycemeris parilis (Conrad), Glenn, •">. 
subovata (Say), Glenn, 5. 
sp., Dall, 1. 
Glyptocrinus insperatus n. sp.. Rowley, 1. 
Lnsperatus? var. carinatus n. var.. Row- 
Ley, 1. 
insperatus var. pentagonus n. var.. Row- 
ley, 1. 
Glyptotoma n. gen., Casey, 1. 
conradiana Aid., Casey, 1. 
crassiplicata < rabb, < lasey, 1. 
parvula n. sp.. Casey, 1, 
Gomphoceras wabashensis Newell, Kindle 
and Breger, 1. 
Gomphotherium serus n. sp., Douglass, l. 
Goniobasis marylandica n. sp., Martin, 3. 
Goniograptus McCoy, Ruedemann, 1. 
•metricus n. sp.. Ruedemann, 1. 
perflexilis n. sp., Ruedemann, 1. 
thureaui McCoy, Ruedemann, 1. 
Goniophora sp. indet., Parks, l. 
Grallator E. Bitchcock, Lull, 1. 
cuneatus E. Hitchcock, Lull, 1. 
cursorius E. Ilitcbcock, Lull, 1. 
formosus E. Hitchcock, Lull, 1. 
graeili- C. II. Hitchcock, Lull, 1. 
tennis ]•;. Hitchcock, Lull, 1. 
Graya argonauta Grove and limn, Boyer, 1. 
Gymnotoceras Hyatt. Smith (J.P.), 2. 
Gypidula (Sieberella) galeatus Dalnian. Kin- 
dle ;iik1 Breger, 1. 
(Sieberella) nucleus Hall and Whitfield, 
Kindle and Breger, 1. 
Gyrodendron n. j, r en.. Ulrich, l. 
emersoni n. sp., Ulrich, 1. 
Gyronites Waagen, Smith (J. P.), 2. 
Hadrianus majusculus n. sp., Hay, 1. 
Haimeophyllum ordinatum Billings, Greene, 
l. 
Hallicystis Jaekel, Schuchert, i. 
elongata Jaekel, Schuchert, I. 
imago (Hall), Schuchert, 4. 
Halobia Bronn, Smith (J. P.), 2. 
Paleontology — Continued. 
Genera and specks described — Continued. 
Halobia superba Mojsisovics, Smith (J. P.), 2 
Haplocanthosanrus Hatcher, Riggs, 2. 
Harpedactylus E. Hitchcock, Lull, 1. 
crassus E. Hitchcock, Lull, 1. 
gracilior E. Hitchcock, Lull, 1. 
tenuissimus E. Hitchcock, Lull, 1. 
Heilprinia n. gen., Grabau, 2. 
gequalis (Emmons), Grabau, 2. 
barbarensis (Trask), Grabau, 2. 
burnsii (Dall), Grabau, 2. 
caloosaensis (Heilprin), Grabau, 2. 
caloosaensis var. carolinensis (Dall), Gra- 
bau, 2. 
exilis (Conrad), Grabau, 2. 
robusta (Trask), Grabau, 2. 
Helcura E. Hitchcock, Lull, 1. 
anguinea E. Hitchcock, Lull, 1. 
littoralis E. Hitchcock, Lull, 1. 
surgens E. Hitchcock, Lull, 1. 
Helicina occulta Say, Shimek, 2. 
Helicoprion, Eastman, 1. 
Heliophyllum conditnm n. sp., Greene, 4. 
gradatum n. sp., Greene, 3. 
inflexum n. sp., Greene, 4. 
obliqnnm n. sp., Greene, 4. 
parvulum n. sp., (ireene, 2. 
sulcatum, (ireene, 3. 
Helminthoida Schafhautl, Ulrich, 1. 
abnormis n. sp., Ulrich, 1. 
exacta n. sp., Ulrich, 1. 
snberassa n. sp., Ulrich, 1. 
vagan. sp., Ulrich, 1. 
Helminthopsis? labyrinthica Heer, Ulrich, 1. 
magna Heer, Ulrich, 1. 
llemiacodon gracilis Marsh, Wortman, 1. 
pygmseus n. sp., Wortman, 1. 
Hemiastervancouverensisn.sp.,Whiteaves,a I 
Hemipristis serra Agassiz, Eastman, 6. 
Hemisnrenla n. gen., Casey, 1. 
Hercoceras auriculum n. sp., Parks, 1. 
Heteronema n. gen., Ulrich and Bassler, 1. 
?carbonarium n. s]>., Ulrich and Bassler,l. 
?contextum n. sp., Ulrich and Bassler, 1. 
Heterotrypa Nicholson, Ulrich and Bassler,2. 
parvulipora n. sp., Ulrich and Bassler, 2. 
Hexalonche miscrosphaera Vinassa, Martin, 6. 
Hexameroceras delphicolum Newell, Kindle 
and Breger, 1. 
Hexastylus simplex Vinassa, Martin, ti. 
Hicoria biacuminata n. sp., Perkins, 6. 
magnifica n. sp., Knovvdton, 1. 
Hicoroides n. gen., Perkins, G. 
angulata n. sp., Perkins, (i. 
ellipsoidea n. sp., Perkins, 6. 
globulus n. sp., Perkins, 6. 
parva n. sp., Perkins, 6. 
triangularis n. sp., Perkins, 6. 
Hindsiella acuta Dall, Glenn, 5. 
Hipparion Christol, Gidley, 1. 
Holopea sp., Parks, 1. 
Homotrypella nodosa n. sp., Ulrich and Bass 
ler, 2. 
Hoplichnus E. Hitchcock, Lull, 1. 
qnadrupedans E. Hitchcock, Lull, 1. 
Hyalaea tricuspida n. sp., Rivers, 1. 
