210 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Paleontology— Continued. 
Gent ra and species described— Continued. 
Dorypyge Dames, Matthew, 3776, 3788. 
dawsoni Walcottsp., Matthew, 3788. 
horrida n. sp., Matthew, 3776. 
parvula Billings sp., Matthew, 3776. 
quadriceps valida n. var., Matthew, 3776- 
wasatchensis var. acadica n. var., Mat- 
thew, 3776. 
Dorytomus coercitus, Scudder, 4890. 
williamsi, Scudder, 4890. 
Doscinia acetabulum, Whitfield, 6101. 
Dosinia mercenaroidea, Aldrich, 74. 
Dosiniopsis lenticularis, Harris, 2313. 
lenticularis (Rogers), Clark, 906. 
Drepanella Ulrich, Ulrich, 5540. 
bigenerisn. sp., Ulrich, 5540. 
bilateralis n. sp., Ulrich, 5540. 
Drillia abundans Conrad, Dall, 1259. 
abundans var. perrugata, Dall, 1259. 
acucincta n. sp., Dall, 1259. 
acurugata n. sp., Dall, 1259. 
sepynota Dall var. acila, Dall, 1259. 
alesidota var. perspirata Dall, Dall, 1259. 
aphanitoma n. sp., Dall, 1259. 
bigemma n. sp., Dall-, 1259. 
ebenina Dall, Dall, 1259. 
eburnea Conrad, Dall, 1259. 
edilia n. sp., Dall, 1259. 
elegans, Whitfield, 6101. 
hoplophorus n. sp., Dall, 1259. 
(lissotropisvar.?) perpolitaDall, Dall, 1259. 
scissurata Dall, Dall, 1259. 
myrmecoon n. sp., Dall, 1259. 
newmani n. sp., Dall, 1259. 
ostrearum Stearns, Dall, 1259. 
piscator n. sp., Dall, 1259. 
podagrina n. sp., Dall, 1259. 
schismatica n. sp., Dall, 1259. 
sedilia n. sp., Dall, 1259. 
sigela n. sp., Dall, 1259. 
subflexuosa n. sp., Whitfield, 6101. 
tuberculata Emmons, Dall, 1259. 
ullreyana n. sp., Cooper, 1071. 
Dromopus agilis n. gen. et sp., Marsh, 3686. 
Dryophyllum crenatum Lx., Knowlton, 3264. 
elongatum n. sp., Dawson, 1436. 
falcatum? Ward, Knowlton, 3264. 
longipetillatum n. sp., Knowlton, 3255. 
neillianum n. sp., Dawson, 1436. 
occidentale n. sp., Dawson, 1436. 
stanleyanum n. sp., Dawson, Ills, 
subfalcatum Lx., Knowlton, 3264. 
Dryopteris? gleichenoides n. sp., Knowlton, 
3263. 
idahcensis n. sp., Knowlton. 3246. 
weedii n. sp., Knowlton, 3255. 
xantholithense n. sp., Knowlton, 3255. 
Dryosaurus n. gen., Marsh, 3687, 3701. 
Dryptosaurus kenabekides, Hay, 2384. 
Dumblea, n. gen., Cragin, 1115. 
symmetrica n. sp., Cragin, 1115. 
Duncanellafanningana (Safford) G.irty, 2037. 
rudis n. sp., Girty, 2034, 2037. 
Dyscolia Fischer and Oehlert, Hall and CI sxke, 
2264. 
Dystactophycus mamillanum Miller and 
Dyer, James, 2896, 
Paleontology— Continued. 
Genera and species described — Continued. 
Dystactospongia, James, 2881. 
insolens, James, -2881. 
minima, James, 2881. 
Dytiscidse sp., Scudder, 4900. 
Eatonia Hall. Hall and Clarke, 2264, 4261a. 
coulteri, n. sp., Miller and Gurley, 3997a. 
medialis Vanuxem, Clarke, 971. 
peculiaris Conrad, Clarke, 971. 
peculiaris? (Conrad), Keyes, 3062. 
Ecculiomphalus Portloch, Grabau, 2086. 
Kcculiomphalus Portlock, Ulrich and Scofield, 
5541. 
compressus n. sp., Whitfield, 6106. 
contiguus n. sp., Ulrich and Scofield, 
5541. 
laxus (Hall), Grabau, 2086. 
multiseptarius n. sp., Cleland, 1012. 
subrotundus n. sp., Ulrich and Scofield, 
5541. 
undulatus Hall, Ulrich and Scofield, 5541. 
undulatus, Whitfield, 6102. 
Eccyliopterus Remele, Ulrich and Scofield, 
5541. 
beliotensis n. sp., Ulrich and Scofield, 
5541. 
owenanus Meek and Worthen, Ulrich and 
Scofield, 5541. 
Echinarachinius gibbsi Remond, Merriam, 
3922. 
(?) ectenodictya Hall, Hall and Clarke, 
2269, 2271. 
excentricus Eschscholtz, Merriam, 3923. 
implexa Hall, Hall and Clarke, 2269, 2271. 
Echinobrissus expansus Clark, Clark, 892. 
texanus Clark, Clark, 892. 
texanus Clark, Cragin, 1115. 
Echinocaris Whitfield, Whitfield, 6099. 
multinodosa, Whitfield, 6099. 
pustulosa, Whitfield, 6099. 
sublevis, Whitfield, 6099. 
Echinoderms, Agassiz, 54. 
Echinodiscus kaskaskiensis (Hall), Keyes, 
3061. 
sampsoni n. sp., Miller 3992. 
Ecphora Conrad, Dall, 1259. 
Ectacodon cinctus Cope, Earle, 1589. 
Ectoconodon n. gen., Osborn, 4205. 
petersoni, n. sp., Osborn, 4205. 
Ectoconus ditrigonus Cope, Osborn and Earle, 
4191. 
Edaphoceras, Hyatt, 2819. 
Edaphophyllum, n. gen., Simpson, 4984. 
Edestus lecontei n. sp., Dean, 1474. 
Edmondia requimarginalis Win.,Weller, 6006. 
albersi n. sp., Miller and Gurley, 4002. 
aspinwallensis Meek, Keyes, 3062. 
cf. binumbonata A. Winchell, Lane, 3400. 
burlingtonensis White and Whitfield, 
Keyes, 3062. 
burlingtonensis M. and W., Weller, 5994, 
6006. 
jejunus (Win.), Weller. 6006. 
missouriensis n. sp., Weller, 5994. 
nitida Win., Weller, 6006. 
nuptialis Winchell, Keyes, 3362. 
quadrata (W.& W.), Weller, 6006. 
