WEEKS.] 
129 
Paleontology — Continued. 
Genera and sx>ccies described — Continued. 
Daonella bockiformis, n. sp., Hyatt, 304. 
cardinoides, n. sp., Hyatt, 304. 
subjecta(?), Hyatt, 304. 
Davidsonella Munier-Chalmas, Hall and 
Clarke, 236. 
Dayia Davidson, Hall and Clarke, 236. 
Deltoceras n. gen., Hyatt, 305. 
planum n. sp., Hyatt, 305. 
Deltodus planidens n. sp., Cope, 95. 
Dentalium martini, Whitfield, 629. 
Desmatochelys lewii n. gen. et sp., Williston, 
646. 
Dicamara Hall, Hall and Clarke, 236. 
Diceratherium. Hatcher, 249. 
Dicranoinyia fontainei, Scudder, 502. 
fragilis, Scudder, 502. 
inferna, Scudder, 502. 
loDgipes, Scudder, 502. 
primitiva, Scudder, 502. 
rostrata, Scudder, 502. 
stagnorum, Scudder, 502. 
stigmosa, Scudder, 502. 
Dictyophytra( ?) walcotti n. sp., Rauff, 473. 
Didymoceras n. gen., Hyatt, 305. 
nebrascense, Hyatt, 305, 
Dielasma King, Hall and Clarke, 236. 
(Cranama Hall), Hall and Clarke, 236. 
Dielasmina Waagen, Hall and Clarke, 236. 
Digonioceras n. gen., Hyatt, 305. 
rotund um n. sp., Hyatt, 305. 
Dimerella Zittel, Hall and Clarke, 236. 
Dinarella Bittner, Hall and Clarke, 236. 
Dinichthys, Claypole, 84. 
Dinichthys, Dean, 148. 
Dinichthys, Wright, 670, 671. 
Dinobastis serus n. sp., Cope, 97. 
Dione marylandica, Wbitfield, 628. 
sayana Conrad, Whitfield, 628. 
Dioonites buchianus var. rarinervis n. var., 
Fontaine, 200. 
buchianus Schimper, Fontaine, 200. 
dunkerianus (Gopp.) Miquel, Fontaine, 
200. 
Dioristella Bittner, Hall and Clarke, 236. 
Diplospirella Bittner, Hall and Clarke, 236. 
Diptychoceras, Hyatt, 305. 
Discina 
humilis, Whitfield, 629. 
lodensis, Whitfield, 629. 
lugubris, Whitfield, 628. 
meekana, Whitfield, 629. 
minuta, Whitfield, 629. 
Discoceras, Hyatt, 305. 
antiquissimum, Hyatt, 305. 
graftonense, Hyatt, 305. 
Disculina( ?) Deslongchamps, Hall and Clarke, 
236. 
Distyotites fasciolus n. sp., Penhallow, 451. 
maximus n. sp., Penhallow, 451. 
Donax variabilis, Whitfield, 628. 
Dorycrinus elegans n. sp., Miller, 413. 
Doscinia acetabulum, Whitfield, 628. 
Drillia elegans, Whitfield, 628. 
subflexuosa n. sp., Whitfield, 628. 
Bull. 135 J) 
Paleontology — Continued. 
Genera and species described — Continued. 
Dromopus agilis n. gen. et sp., Marsh, 394. 
Dryosaurus n. gen., Marsh, 395. 
Dyscolia Fischer and Oehlert.Hall and Clarke, 
236. 
Eatonia Hall, Hall and Clarke, 236. 
Echinocaris Whitfield, Whitfield, 629. 
multinodosa, Whitfield, 629. 
pustulosa, Whitfield, 629. 
sublevis, Whitfield, 629. 
Edaphoceras, Hyatt, 305. 
Eichwaldia Billings, Hall and Clarke, 236. 
Elasmosaurus intermedins n. sp., Cope, 93. 
Elomeryx armatus n. gen., Marsh, 397. 
Elotherium crassum, Marsh, 392. 
Elpe ulrichi n. sp., Foerste, 197. 
Embaphias circulosus n. gen. et sp., Cope, 93. 
Emperoceras beecheri n. gen., Hyatt, 305. 
Enantiosphen Whidborne, Hall and Clarke, 
236. 
Enclimatoceras (Nautilus) ulrichi White, 
Harris, 242. 
Encrinurus punctatus, Foerste, 197. 
Endolobus avonensis, Hyatt, 305. 
Eocoryne geminum Matthew, Rauff, 473. 
Eohyus distans n. sp., Marsh, 398. 
robustus n. sp., Marsh, 398. 
Eomeryx pumilus, Marsh, 398. 
Ephippiocera ferratum Hyatt, Hyatt, 305. 
Eporeodon major, Osborn and Wortman, 433&. 
Equisetum texense n. sp., Fontaine, 200. 
Erato emmonsi n. sp., Whitfield, 628. 
Eretmocrinus pnegravis n. sp., Miller, 413. 
Eridonychia 
apicalis n. gen. et sp., Ulrich, 570. 
crenata n. sp., Ulrich, 570. 
paucicostata n. sp., Ulrich, 570. 
Estonioceras, Hyatt, 305. 
biangulatum n. sp., Hyatt, 305. 
perforatum, Hyatt, 305. 
Eucalathis Fischer and Oehlert, Hall and 
Clarke, 236. 
Eudesella Munier-Chalmas, Hall and Clarke, 
236. 
Eumetria Hall, Hall and Clarke, 236. 
Euractinella Bittner, Hall and Clarke, 236. 
Eurypterus eriensis, Whitfield, 629. 
Eurystomites 
gibbosum n. sp., Hyatt, 305. 
rotundus, Hyatt, 305. 
undatum, Hyatt, 305. 
virginiana, Hyatt, 305. 
Eutrephoceras n. gen., Hyatt, 305. 
dekayi, Hyatt, 305. 
faxoense n. sp., Hyatt, 305. 
imperialis Hyatt, 305. 
Exiteloceras n. gen., Hyatt, 305. 
Fasciolaria woodi, Whitfield, 628. 
Ficus willisiana n. sp., Hollick, 280. 
Fissurella griscomi, Whitfield, 628. 
Fraxinus quadrangulata Michx., Penhallow, 
450. 
Frenelopsis hoheneggeri (Ett.) Schenk., Fon- 
taine, 200. 
varians n. sp., Fontaine, 200. 
