350 INDEX. 
Page. Page. 
Plesiotissotia ........ .-34,41 | Roemeroceras Hyatt—Continued. 
michaleti Peron . 41 Babbilyatte. oan even el eee eee eee nee 30, 31, 256 
Rolyplectusicapellinus=esssseeeeesseeseeee eee eee eee 19 subplanum Hyatt .- Se EBA 256: 
ISCO CS Sees Atte a ence esos YARN Ea os 19 syriaciforme Hyatt . 30, 31-32, 33, 34, 37, 254 
PLIMMOLATATT cas ee ee oy eV yatre tal in a 294: Scaphites thse 3 i eae a eo 189 
Prionetropidre y= se sepa een te eee eee cee oe See 245270 ep ochiloenbachiaes sess eee Sear eee ae ee eee eee eee 191,193 
Prolecanites Assess ee aa e ese a en a 745 eSchiluetericerasielyattee eee eeeeeeeee eee eee aeeeee 110-111 
Protensonoceras/Hyatteeeesseeeeece ese ane eee oeenee ae 20, laubeith yatta iy ssh ok See oe ee ee 111 
153, 157, 158, 179, 181, 186, 188, 189, 192, 198, 204 michelobense... 111 
emarginatum’ (Cragin) --------------------- 154, 157, 176 TmOdOSOLdesi(ScChiiten) =a esses =a aee ese eee 110, 111 
gabbi (B6hm) .....-.-. - 153-156, 176, 286 vielbanci (d’Orbigny) .-- con’ lilt) 
planum Hyatt ....... ... 156-157, 288 | Sharpeiceras Hyatt .:...-.- eek) 
Pseudaspidoceras Hyatt - -- --- 106-107, 116 inconstans (Schliiter) - oe ablilpable) 
cConciliatumy(Stoliczka)ees=seese cesses eeseeeeeeeeee 107 laticlayiumy® (Sharpe) sesecsseneeeeaceneeeeteeeeeee Talal, WiiB} 
crassitestan(Stoliczia)ieeeene ee ae eee aeeeee eee aes 107 schlueteri Hyatt ‘ 111 
Gumilifik(Stolicz ica) ieee e nee eeseeeeere eer eere eee 107 | Sigaloceras taylori.. 106 
deciduumeEbyattsssenetcecack seo eee eee Ov MOPECGLESNClassinedul Stole esses eee eeee heer eee eee 15-18 
evomphalumi(Sharpe)imesseeseeee eee eee tesa eer ee 107 | Specific differences, absence of, in Placenticeras...--. 196 
footeanum (Stoliczka)-..-..22..--.22.-=-.------- WONG OTS) |] Solway WOES Srescsseccsscccascoceseseescooneecas 
SChIlUteriseby at paee eee eee eee eee ees 107 | Sphenodiscus Meek. 
Pseudoceratites, definition of 54-57, 58, 83, 87, 91-95, 149, 153, 160, 180, 195, 233 
Pseudophyllites Kossmat. -.-- Ws ACULOGONSAMUSPNOC LLIN pap ee ee ee eee eee eee ee 57 
Pseudotissotia Peron -.. 3: GCXOWIN MIT boo aos doasoSbosaoskacceccenuE Eo 58 
Canmonan Chon steaeeeeeee eee ne eee eee eee 37 beecherivebyattaesser ees eee eee ae 69, 78-82, 264, 270 
douvillet Peron 38 belviderensis var. serpentinus Cragin ..-...------- 162, 164 
galliennei(G/Orbigmy)je-essssees onenee ene. 35, 36, 37, 42 belviderensis var. wddent Cragin.--...-.-.---------- 159 
ATLESLETSE CLOM aie oe et eA DR DRE Dee egee aA 37 DUN CSHOTSties Obese eee eae ee 58, 82 
TUMISLeNSISHEy abhi ereN Nee eer eee eee 36-37 Gaumdle\ Cragin Sie sa eA ay tne Beene eee Ue 185 
Bseud otissonideeiehy att -eeeeseee noe eee ae ee eee 24;34-35 HOGG URAS CHASM 3 ce oe obas obbcasoacoesooscoces 157, 177 
PSiLO eras uae eRe eA & rite ciepal ped egy NR): MaMa 24,25 TSTECHISYZAGGE we ye Nee alt ON ee a tae es pare 58 
Psiloceratide: - ae 25, konincki Hyatt... 82, 276 
IPsilopullchelliiaiee-eerecere eee eee ene er oe eee 136, 137, 142, 143 Jenticularis (Owen) - Bamasoar tau, 
Psilotissotia Hyatt. -- 41,187,140, 141, 143 58, 66, 70, 71-75, 77-82, 94, 95, 268, 270 
chalmasi (Nicklés) 148 Val yO AEM CUS See eee ene ee eee eee eee 76 
defforgesi (Nicklés) 143 yar. mississippiensis Hyatt....-..--- 77-78, 80, 81, 270 
agi (NCK1ES) eee eee ee eeicc as ee eee 148, 144 var. splendens Hyatt .....-..-.---.- 95-77, 79, 80, 268 
ian naoVesy (INNES) soppy soto ations roneseneucsdeness 143 lobatus (Tuomey) -.- 65, 66-70, 71, 75, 76, 80, 82, 264, 266, 270 
Reig in (NICHI OS) Meese eneaee eis sooo eee ee eee 148 Dleuriseptay (CounaC) esse eee eee eee eee 57, 
PulchellianWihlic epee emcee pee e es ee eee ee 41, 58, 59-65, 70, 71, 75, 82, 258, 260, 262, 264 
55, 112, 117, 129, 181, 186, 137, 1389, 140-142, 144 requient Grossouyre 100 
Caicedii (Karsten ener cece cee ce eee 130, 135 roemert Cragin ...- 177 
changarnieri Sayn. ie 142 rutoti Grossouyre. se 83 
columbiana....-. a SUNS eI EE Te A I See ag eh 142 SHAWN Pols) Sasconaddasacscesaan= soso co AMscansiocos $3 
compressissima (d’Orbigny) 141, 142, 286 stantoni Hyatt..----.-.-.----:---_--.-- 70-71, 81, 262, 264 
COT LOVING CLES a eed tetera tet Ue tet nial Toon cn 130 ubaeshiiGrossouvilee eee eee eee nee eee eee 82,83 
GeflorgesiNiCkl Gs hese oes eee eee aoe eee 143;:\(Stepheocerasss28o2a-s8s-t sees aeseoee seasons 102 
GidlnytG-erb ard tee cesta pte 1364 |matepheoceratid ce saasesseeseeeeie ce eee eee eee eee 102 
TOUMUCTENIC KGS teeter ete ere ee ee eet 139}4| mSUCULOCEras| COssm a yeaseeeeeen sees n aaa eae eae aaet 105 
LOOT ADE ea Ar coger gf cates Se NES ye aL) See ae 143 || Stoliczkaia--.-.-.-..--- - 104, note; 137, 140, 141 
heme SaryMicie ess coerce oe ae eee ee ee ee 130 tetragona Neumayr - poe del 
hettneri: -=-2- = 142 | Styracoceras Hyatt -.-.. op -.-- 83,88, 244 
PRON TD ONON UOT eae ae tae eee eee ee oe eee 138 baldurne(eyserlamg)))e este eae ase eee 89, 244-245 
kaliamieeeeeeeer . 183,142 | Subpulchellia Hyatt ............-...-..-.-- 136, 137, 189-140 
Mi Chel Csiskhy atten Marie ae one ace ieee gon). 1 Castellamensisheby aubeeRe se seeeeeeer emer eeeeeser 140, 286 
OA RNOINIOMESS cos nsaesroqosspeopscoscec e139, IHOUCG AULENL, (INPIONNAS) eo sscacssesnnoebran csoseescee= 139 
QuaeheNSISIS aye eens eee Beene rere 133, 142 Oe hVertiN (NUCICS) Weper eens tee te eanen ee neesere 139 
provincialis d'Orbigny ......-....-...-..-- 129, 130, 131, 134 sauvageaui (Hermite) .........-......-..---..-- 139, 140 
PULCREULCRGAONDI STAVE eee eee eee 138, 140,141 | Subtissotia Hyatt..........-. - 38, 42, 43,45 
SCLUUAGECUIAELCLINIITC Reese ee sae ee eee eee 139, 140 africana (Peron).... =e 44 
schlumbergeri Nicklés . Fen inflata (Peron) ..- ---- 43,45 
selecta Gerhardt........ een (49) ThaeroanXeXobtD), (EEWOIM)) ono soa socooaeaoaossoeonoensS 43-44, 45 
SILO CONCERN ee eee eee eee -.. 129,130 EON JENA, oscs0 ssocosmsconcosoouasbRSooODScbere 44 
Pulchellii dees. pecs seeee 80101-5104 note si7t299136—1450 |) nachy senesiceen-eeeeetee estes seee eee =e ee eeeeee 22, 23 
Retardation in development ..../........-..-- 20=2381S9=190 i | meReg OCELASPELY al lENeree eee eee stele eee eter 83, S4 
Roemeroceras)Hyatt/-. 205252. 2 ses ee ee 26, 30, 36, 112, 145, 192 TM OSEDSC aes se eeee cree en eee aes ee ee eee eee 84, 87 
attenuatum) (Hyatt)~ oo ot nee eee ene ee $3,254 | Terminology employed.....-..-.....--..--.....-.--.-- 11-14 
demticula tums ee ke Sopa em oar leer ae er eee 84 | Tissotia Douvillé............ 32, 35, 36, 38, 41, 42, 45, 55, 104, 178 
