360 
Obolus (Acritis?) rugatus Walcott....-...--------- XIII: 2 and 3. 
Obolus (Bréggeria) salteri (Holl)--..--------------- XIII: 1, la-n; 
XV: 4, 4a-d. 
Obolus Fordinia bellulus (Walcott).-....----------- LI: 3. 3a-f. 
gilberti Walcott -...-.-..-.-.-------- -LI: 5, 5a-d. 
perfectus Walcott. .....-.---.----- LXII: 10, 10a-d. 
Obolus (Lingulobolus) affinis (Billings) --..-..----- XVI: 1, la-e. 
spissus (Billings).......--.-.----------------- XVI: 2, 2a-k; 
XLII: 3, 3a. 
Obolus (Mickwitzella) siluricus (Eichwald)-......-- XV: 1, la-c. 
.-X XXII: 5, 5a-g. - 
-Not figured. 
..- XIV: 2 2a-c. 
--- LV: 1, la-c. 
... XIV: 4, 4a-d. 
--- DV: 3, 3a-c. 
.--XLVIII: 6, 6a. 
Obolus (Palzeobolus) bretonensis (Matthew)..--- 
bretonensis lens (Matthew)... ------- 
Obolus (Schmidtia) acuminatus Mickwitz-. 
celatus (Volborth).--.--.--.----- 
erassus Mickwitz......----- 
Obolus (Westonia) alandensis Walcott. 
AVYOTAI GEL!) eee ene eee oa = eee XLVI: 1,1a-h. 
balticus Walcott. .2.-------------+-sse- =~ -- VALLI 7, 7a—b, 
blackwelderi Walcott. - =-.-- XXX UX: 10,10a-c. 
bottnicus (Wiman).......----.--------------- XLVIII: 4, 4a-c. 
chuarensis (Walcott).--.-.-...--------------- XXV: 2, 2a-e. 
GartonisWialcotticn=sssecs= soe ~ l= eerie Text figs. 40A-C, 
: p. 455. 
ella (Hall and Whitfield)..............----..-X XXIII: 3,3a-c; 
XLVII: 1, 1la-p. 
ella onaquiensis Walcott.....---.------------ XLIX: 6, 6a. 
elongatus Walcott LXIII: 8, 8a-d. 
escasoni (Matthew)--..-..---.--.------------- XLIX: 1, 1a-f. 
euglyphus (Walcott)............------------- XLVIII: 1, la-f. 
finlandensis Walcott. XLVIII: 3,3a-b. 
TPIUSAWialCOULemeee ser aa seen nt ne ees XLIX: 4, 4a-d. 
? lamellosus (Barrande).-......-.-.---.------- XII: 7,7a-d. 
MOtchensisiWialcOttsec. no-one == sales aia LNIII: 9. 
togersi (Walcott). .- Spescococe ses hI PPh 
stoneanus (Whitfield).............-...-.-.-.-X XVIII: 2, 2a-g; 
XLIX: 2, 2a. 
THEMIS VA COLD a eae ee oe inl i= ie ee a oa—Ce 
wasatchensis Walcott..............---.----.- XLIX: 5, 5a; 
Text figs. 41A-F, 
p- 467. 
hrabereyatl \WE OO a saenscotcte non RDaE ence s6 XLVIII: 5, 5a-b. 
SpaundtsawWalcoth:o-2---s--6 seo. eos Not figured. 
Spalnd ty Da Wialcobuseeseeee eee see seer Not figured. 
obscura [Billingsella], Walcott. LXXXVI: 6. 
obscurus [Obolus], Walcott..........-....---------- XI: 9,9a-d. 
obtusus [Obolus (Schmidtia)], Mickwitz..........-- XIV: 3,3a-c. 
occidens [Mickwitzia], Walcott.............- AVE 4. 
celandica [Acrotreta], Westergird_................- Not figured. 
onaquiensis [ Obolus (Westonia) ella], Walcott......XLIX: 6, 6a. 
ophirensis [Acrotreta], Walcott. -LXXIV: 1,la-p. 
ophirensis [Micromitra (Iphidella) pannula], (Wal- 
CODE) Er Seer eee eee mene IV: 4, 4a-f. 
ophirensis descendens [Acrotreta], Walcott......-.- LXXVIII: 1, 1a-c. 
ophirensis rugosa [Acrotreta], Walcott.......--..... LXXIV: 2, 2a-e. 
ora [Lingulella], (Walcott) -XXXV: 9,9a-d. 
Orbiculoidea contraria (Barrande)........-.--.----- LXXXI: 9. 
pileolus (Hicks MS.) (Salter).......-.-...---.- LXXXI: 11,11a. 
varians (Barrande) --LXXXI: 8. 
orientalis [ Billingsella], (Whitfield) 
orientalis [Huenella], (Walcott)...-.-...-.--------- CIV: 3,3a-b. 
orientalis [Micromitra (Paterina) labradorica], (Wal- 
(10119) aoc SaSCORSR BEM EOT Eonar CoSeebene I: 2 
orientalis [Yorkia?], Walcott.....2...-...-.-------- LXXXII: 3,3a. 
ornatella [Micromitra (Iphidella)], (Linnarssen).-..III: 6, 6a-d. 
orta [Acrothyra signata], Matthew. ...--..-.----.-. LXXX: 3,3a-b. 
orthia [Syntrophia], Walcott. ..... .-CIV: 4,4a-b. 
Orusia ? eurekensis (Walcott) --- SSC vigiae 
lenticularis (Wahlenberg)...........-...--...-XCVIII: 1,1a-p; 2, 
2a-k; 3,3a-b; 6, 
6a-c. 
lenticularis atrypoides (Matthew) - 
lenticularis lyncioides (Matthew)... 
----XCVIII: 5. 
--XCVIII: 4. 
osceola [ Finkelnburgia], (Walcott)......-.....-..-. XIII: 1,1a-h. 
osceola [ Lingulella mosia], (Walcott)........-.-..-- XVIII: 2, 2a-c. 
osceola corrugata [ Finkelnburgia], (Walcott) ----.- Not figured. 
Otusia sandbergi(Winchell)...........------------ XCIII: 4, 4a-d. 
utahensis Walcott .... LXXXIX: 3,3a-c. 
ovalis [Acrotreta], Walcott............-.....-.----- XLVI: 2,2a-b. 
CAMBRIAN BRACHIOPODA. | 
oweni [Lingulella], (Walcott)-....-...-.------------ XVIII: 5,5a-f. © . 
pacifica [Acrotreta], Walcott 
pagoda [Eoorthis], (Walcott)..............--------- XCVII: 12, 12a-d. 
(Palszobolus) bretonensis[Obolus], (Matthew) --X XXII: 5, 5a-g. 
bretonensis lens [Obolus], (Matthew).....--- Not figured. 
palliatus[Obolus ?], Barrande...........-..-------- KV: 5. 
pandemia [Obolus], Walcott. - .---I[X: 3,3a-d 
panderi[Acrothele], Walcott... ---- LIX: 5,5a-c. 
panderi[Obolus], Mickwitz.....-.-..-..--.--------} Not figured. 
pannula [Micromitra (Iphidella)], (White) .-.-..-.- IV: 1, 1a-t; 3, 3a; 
Text fig. 32, p. 362. 
pannula maladensis [Micromitra (Iphidella)], (Wal- 
(Q)8)) sop emeeIeeOEee: oe acomssanoncasceA IV: 2, 2a-g. 
pannula ophirensis [Micromitra (Iphidella)], (Wal- 
COLL) Betta o -a ae eee ee eee eee IV: 4, 4a-f. 
papias [Eoorthis], (Walcott) - - - Bei seese ees ee ek Ol24 
parva [Dalmanella], (de Verneuil) --Text fig. 10, p. 299. k j 
parva [Plectorthis], (Dalman)......--..------.--.-- XCVI: 6, 6a-g. : 
parvula[Acrotreta], (Wallerius).......-.-.-.------- LXXVII: 4,4a. 
parvus [Dicellomus], Walcott... --LXXXIX:11, Ma-d. 
parvus [Obolus], Walcott. ..-...--.-.-..-.--------- Text. figs. 37A-B, 
p. 408. 
(Paterina) bella [Micromitra], (Billings)...........- II: 1, la-c. 
crenistria[Micromitra], (Walcott)... - III: 4,4a-b. 
etheridgei[Micromitra], (Tate)-.-...- IL: 10,10a-c. 
labradorica[Micromitra], (Billings) ..-....---- Il: 2, 2a-f. 
labradorica orientalis [Micromitra], (Wal- i 
CODL) eeeeeeod  Seleee wae a ee anne Il: 2. 
labradorica swantonensis [Micromitra], (Wal- 
(OH) -poosesebagaececodenadecsecsdcostes: I: 3,3a-f. 
labradorica utahensis [Micromitra], -(Wal- 
COI) osonaacerosponcanesacqnockee cece II: 8, 8a; 
Text fig. 24, p. 350. 
labradorica var. [Micromitra], Walcott... ...- Not figured. 
logani[Micromitra], (Walcott)............--- II: 6,6a-b. 
major [Micromitra], (Walcott) -.- 
phillipsi [Micromitra], (Holl).-..-.--..- 
Text fig. 25, p. 351. 
III: 8. 
prospectensis [Micromitra], (Walcott) - ---II: 4,4a. 
stissingensis [Micromitra], (Dwight).......-.- III: 1, 1a-e. 
stissingensis ora Walcott-..................--Not figured. 
stuarti{Micromitra], Walcott...........----- Text figs. 26A-B, 
p. 355. 
superba [Micromitra] (Walcott)..........-.- II: 7, 7a-f; 
Text figs. 27A-B, 
p. 350. 
undosa [Micromitra], (Moberg).......-.---.-- Text figs. 28A-C, 
p. 356. 
wapta [Micromitra], Walcott............-...- Text figs. 29A—B, 
Dp. 357, 
williardi [Micromitra], Walcott............-.- II: 9b-¢; 
Text figs. 30A-E, 
p- 358 
pealei [Micromitra], (Walcott).......-...---------.- Ill: 3,3a-e. 
pectenoides[Dicellomus], (Whitfield)..............- LU: 6,6a-c; 
Text figs. 48A-B, 
p. 575. 
peculiaris [Kutorgina], (Tate)-....---...-.----.---- Warpes 
pelias [Obolus meconnelli], (Walcott)............-. XXIII: 3b-c; 
XXXIX: 5, 5a-c. 
pellico [Nisusia (Jamesella)], (de Verneuil and Bar- ‘ 
TANdE) sss seesaw tee ence meena XCVII: 2,2a-b. 
perattenuata [Lingulella], (Whitfield)......-.. =o = NONLIN, Tate 
perfectus[Obolus (Fordinia)], (Walcott).........--. LXIII: 10, 10a-d. 
perpasta [Nisusia (Jamesella)], (Pompeckj) . .....-- CI: 1, la-h. 
perpasta macra[Nisusia (Jamesella)], (Pompeckj) --CI: 3,3a. 
perpasta subquadrata [Nisusia (Jamesella)], (Pom- 
DOG) Bae neces eels ee ee CI: 2,2a-b. 
perugata [Kutorgina], Walcott...............--...- V:3,3a-e. 
phaon [Lingulella], (Walcott). - eine = cae enn a RONG VAL stl A Os 
pheres [Obolus], Walcott....-.-..-..-.------------- XI: 6, 6a-b. 
Philhedra columbiana (Walcott)...........---..--- LXXXI: 10. 
phillipsi [Micromitra (Paterina)], (Holl)............ Ill: 8. 
pileolus [Orbiculoideal, (Salter).....-.........-.-.. LXXXI: 11, lla, 
Plectorthis jamesi ((Hall)-<--.--:-.----5.----2-- 5 2- GVIs 5, 5a-c: 
parva (D alma) sous see see eee rere XCVI: 6, 6a-g. 
Dlicatella(Hall)se cote ceees se coecen bees cece XCVI: 4, 4a; 
Text fig. 12, p. 299. 
whitfieldi (N. H. Winchell)................--.- CVI: 3. 
J 
