290 INDEX. 
Page. Page. 
DEvon1an—Continued. EvompPuaLus—Continued. 
Fossils of 99 (Straparollus) Hecale .........-. oeescAStaccsasce 186 
Ichthyic fauna of . 7 (Straparollus) subrugosus........--------------- 255 
Number of genera and species in. .-..----------- 9 | Fauna, Devonian, Summary of ........--....------- 6 
DICELLOCEPHALUBS ...... ------ ----ee--0-eee--- see === 40, 89 Fresh-water, in Lower Carboniferous 8 
angustifrons .....-.-.------++++--+---2- 22202 ---- Ichthyic, of the Devonian..........---..-------- 7 
bilobatus...-- of Lower Pogonip group, relations .....--.-.--.-. 4 
Vexpansus\: sere-2h sae -mesneatea stone ee alba of Middle Pogonip group .....-----..-----.----- 3 
PN ALIB oooh elton reese ea ee eae of Upper Pogonip group, like Lower Trenton - -- 3 
Mahelliferscuccseesetonce ise coon coer oareesee Pecularities of White Pine shale ......-.....--. 5 
ineXpGCtalll see seae ae ance seats , Passage, between Cambrian and Silurian........ 3 
hole esse Favositrs? Argus 
Marica basaltica --...-.-.---. 
nasutus Whe miepheri es sec. a etek ale eee ape ee 
Osceola .SP ----------+---------- +--+ 2+ eee ee eee +--+ - 
quadriceps : 45 | FENESTELLA Sp. 1 .-.--.------2-------222----2---22-- 
Richmond GNSS: ©2226. s- see e a Seer ea cea -~ 44 | Fisturirora sp.? - 
DIPHYPHYLLUM Simcoense .....:--------+- -+-+=2-"" 405 | Fossits, Cambrian ....-...---------.----+-+---+-++-- 
Dincie eee (area tpee ee wipe ae. 112, 213 Carboniferous..---...--.--- -------------------- 
NERS TT el NR A ea gee S 214 Devonisn 12932. + sess Sone eae eee eens 99 
Hodansiss Lower Silurian 65 
ST ett Le pot ee ee eae Potsdam, of Wisconsin, occurring in Nevada. .-. 3 
RAett sich ee nreeet a 60 Sees gee 412 RGSU GINA CYMNGLICE: nonce == = nae ela =e =e 279 
WWISEOTTIGNGIB > o0c one seen cae eee alee 213 BR ea 79 
Ste eee Seka SEES 8,213, 214 GERRI OF OD Agia 2 clereterate else aint ee eee 78, 182, 254 
SPAN) siioge helene WR Ata rey 113, 213, 214 GENERA AND SPEcIEs, Number of, in Paleozoic forma- 
Hs ae es ee Pre aan 112, 268, 279 fiona (of CleritraliN eva a eae ra 9 
Ormin Newberry oe ees 213 GroLocic Horizon, Table showing number of gen- 
Posen SP ie “nS era and species in each, in Central Nevada. ... 9 
eRe 172 GDYPTODESMAUSD.fleese ae see eee eee 276 
er ee A Ae eee a pa ee “Sansa ee eee res sessed i arssseseccsasoce 202 
BOOUMOMPRALDS -cocseesctecteeeesceseen 1 celaye ke Nesaen SR aiealpe a 
ae aes SUDOVMOUNG eee sees esse e eee eee eee 202 
Se BD. Pec crcc nme sso ac nnapaieanctensenwmaces ease <semc~ 281 
HUN! coos aa GONTATIURA poe ee eee ees ee eeen eee nee eee ee 203 
LEED ata doaideratese eee eee ee st Teter ae 203 
TEEDMONDIA .------ 22 2cee 22 cece ceneee sone nse ene en ns 245 Ringic inks en Se ee ee 78 
Phicarin ates ss esensne oe eae eee 176 epi yenceeane Saas teeter eee 9278 
Burlingtonensis 2ASi |G GNTOPHORA esc hs sac ce ten ese cceeeea cote eee 171 
? circularis --. 246 perangulata 271,195 
Medion ....-----++ +++ +-2- eee ee renee es cee eee cee B45) Guawcvard <<. Secs. saeo= eees te eases tenes ee 174, 244 
Pingnensis secs sateta este see eect eee 164, 277 arotata cs. eiGldccpoecseas se semenoeeeeeoacee: 8, 226, 245 
Enpoceras multitubulatum..-.-.------------++---- 87 Hannibalensia’:-secssss2scsenecsessenee ee 8, 175, 226, 244 
proteiforme . winor 174 
EUVOMPHALUS..--------+-se0e0+eeeeeeeeeeee seer eereee (Leptodomnus?) arcuata.....-..--.--.------ adesee 245 
CY LES CCG 5 SS OOS Ot eco e 186 | GRaPTOLITHUS sp. {?.----.----- SorStecheceeecseesece ee ez 
Eurekensis 185 | GrirrirHives .....--- eepaes see 266 
laxUe oe oces eee <eactie seinen 186 Portlocki 266 
rugosus . 255 | Group, Pogonip ---..-...-.20+ ssceee---e-e-=-----2-= 65 
BP. 9. .--- == nee nec e eee ee eee ee teen eee e enn nee cane 277 Prospect Mountain ......-..-...---------------- 1l 
(Eceuliomphalus) laxus..-....- eancccavecsseccuss 186 | GYPIDULA, subgenus...-.. sescrnccsaeo cbempstecsccn S5 159 
(Phanerotinus) laxus ....-- Ba neiatatet Sceasscoss - 186 occidentails .......- 159 
