132 
INDEX TO NORTH AMERICAN GEOLOGY, 
[BULL 203. 
Paleontology — Continued. 
Genera and species described — Continued. 
Goniatites delphiensis n. sp., Kindle, 442. 
discoideus var. ohioensis Hall, Kindle, 
442. 
wabashensis n. sp., Kindle, 442. 
Goniobasis Lea, Letson, 493. 
haldemani Tyron, Letson, 493. 
levescens (Menke) Tyron, Letson, 493. 
var. niagarensis (Lea) Tyron, Letson, 493. 
Goniophora hamiltonensis Hall, Kindle, 442. 
truncata Hall, Kindle, 442. 
Grammysia arcuata Hall, Kindle, 442. 
imbricata Rowley, Greene, 320. 
secunda var. gibbosa H. and W., Kindle, 
442. 
subarcuata Hall?, Kindle, 442. 
Gryphaea vesicularis Lamarck, Clark and 
Martin, 141. 
Gypidula romingeri var. indianensis nov. 
var., Kindle, 442. 
Gyroceras burlingtonensis Owen, Weller, 804. 
indianense n. sp., Kindle, 442. 
inelegans Meek?, Kindle, 442. 
jason Hall, Kindle, 442. 
Halysites Fischer, Grabau, 306. 
catenulatus (Linn.), Grabau, 306. 
Harpagolestes macrocephalus n. gen. et sp., 
Wortman, 864. 
Harpalodon sylvestris Marsh, Wortman, 863. 
Helenia granulata n. sp., Matthew, 529. 
Helicoceras stevensoni, Whitfield, 823. 
Heliolites Guettard, Grabau, 306. 
elegans Hall, Grabau, 306. 
pyriformis Guettard, Grabau, 306. 
spiniporus Hall, Grabau, 306. 
Heliophyllum ampliatum n. sp., Greene, 321. 
collatum n. sp., Greene, 320. 
conigerum n. sp., Greene, 320. 
hammelli n. sp., Greene, 320. 
rowleyi n. sp., Greene, 319. 
spiculatum n. sp., Greene, 320. 
Helopora Hall, Grabau, 306. 
fragilis Hall, Grabau, 306. 
Hercoglossa tuomeyi n. sp., Clark and Mar- 
tin, 141. 
Hetepora (?) tecta n. sp., Ulrich, 751. 
Hipparion eurystylus (Cope), Gidley, 292. 
Holopea conica Win., Weller, 804. - 
(?) perundosa n. sp., Sardeson, 677. 
Homalonotus Koenig, Grabau, 306. 
delphinocephalus (Green), Grabau, 306. 
Homceospira Hall and Clarke, Grabau, 306. 
apriniformis Hall, Grabau, 306. 
evax Hall 1863, Beecher, 51. 
sobrina n. sp., Beecher, 51. 
Homotrypaminnesotensis Ulr., Sardeson, 671. 
Hoploparia McCoy, Pilsbry, 613. 
gabbi n. sp., Pilsbry, 613. 
Hyaenodon minutus n. sp., Douglass, 234a. 
montanus n. sp., Douglass, 234a. 
Hyatella Hall and Clarke, Grabau, 306. 
congesta (Conrad), Grabau, 306. 
Hyolithellus (?) flexuosus n. sp., Matthew, 
529. 
micans Billings, Matthew, 529. 
micans Billings, Ruedemann, 660. 
Paleontology— Continued. 
Genera and species described— Continued. 
Hyolithes excellens Bill., Matthew, 529. 
rugosus n. sp., Matthew, 529. 
Hyolithus rhine n. sp., Ruedemann, 660. 
Ichthycrinus Conrad, Grabau, 306. 
laevis Conrad, Grabau, 306. 
Ictops acutidens n. sp., Douglass, 234a. 
Igoceras undata (Win.), Weller, 804. 
Ulaenus Dalman, Grabau, 306. 
americanus Billings, Ruedemann, 660. 
ioxus Hall, Grabau, 306. 
Isochilina Jones, Grabau, 306. 
armata var. pygmsea n. var., Ruede- 
mann, 660. 
cylindrica (Hall), Grabau, 306. 
Isomena humilus Meek?, Kindle, 442. 
Isopora Studer. 1878, Vaughan, 766. 
muricata (Linnaeus) forma muricata s. s. 
(=cervicornis Lamarck), Vaughan, 
766. 
Isotelus maximus Locke, Ruedemann, 660. 
Kutorgina granulata n. sp., Matthew, 529. 
Lampsilis Rafin-rsque, Letson, 493. 
ellipsiformis (Conr.) Simpson, Letson, 493. 
rectus (Lam.) Smith, Letson, 493. 
Latirusmarylandicus n.sp., Clarkand Martin, 
141. 
Lecanocrinus Hail, Grabau, 306. 
macropetalus Hall, Grabau, 306. 
Leda cliftonensis n. sp., Clark and Martin, 
141. 
cultelliformis (Rogers), Clark and Mar- 
tin, 141. 
improcera (Conrad), Clark and Martin, 
141. 
parilis (Conrad), Clark and Martin, 141. 
var., Clark and Martin, 141. 
parva (Rogers), Clark and Martin, 141. 
potomacensisn. sp., Clark and Martin, 141. 
saccata (Win.), Weller, 801. 
tysoni n. sp., Clark and Martin, 141. 
Leiorhynchus limitare (Vanuxem), Kindle, 
442. 
quadricostatum (Vanuxem), Kindle, 442. 
Leperditia Rouault, Grabau, 306. 
fabulites Conrad sp., Ruedemann, 660. 
resplendens n. sp., Ruedemann, 660. 
scalaris Jones, Grabau, 306. 
Lepidocoleus jamesi Hall and Whitfield sp., 
Ruedemann, 660. 
Lepidodiscus alleganius n. sp., Clarke, 146. 
Lepralia labiosa n. sp., Ulrich, 751. 
subplana n. sp., ^Ulrich, 751. 
Leptaena Dalman, Grabau, 306. 
minnesotensis n. sp., Sardeson, 677. 
praecosis n. sp., Sardeson, 677. 
recedens n. sp., Sardeson, 677. 
rhomboidalis (Wahlenberg), Grabau, 306. 
saxea n. sp., Sardeson, 677. 
rhomboidalis Wilckens, 1769, Beecher, 51. 
rhomboidalis (Wilckens), Kindle, 442. 
rhomboidalis Wilckens, Ruedemann, 660. 
rhomboidalis (Wilck.), Weller, 804. 
Leptobolus atavus n. sp., Matthew, 530. 
(?) collicia n. sp., Matthew, 530. 
walcotti n. sp., Ruedemann, 659 
