WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
295 
Paleontology — Continued. 
Genera and specie* <l< scribt d — Continued. 
Uintacrinus, Springer, 5162. 
socialis Grinnell, Beecher, 382. 
socialis Grinnell, Clark, 892. 
socialis Grinnell, Hill, 2532. 
socialis Grinnell, Logan, 3554. 
socialis Grinn., Springer, 5164. 
socialis Grinnell, Williston, 6226. 
Uintacyon Leidy, Wortman and Matthew, 
6496. 
brevirostris (Cope), Wortman and Mat- 
thew, 6496. 
canavus (Cope), Wortman and Matthew, 
6496. 
edax Leidy, Wortman and Matthew, 6496. 
promicrodon, n. sp., Wortman and Mat- 
thew, 6496. 
pugnax, n. sp., Wortman and Matthew, 
6496. 
vorax Leidy, Wortman and Matthew, 
6496. 
Ulias moratus n. gen. et sp., Cope, 1096. 
Ulmiphyllum densinerve n. sp., Fontaine, 
1850. 
Ulmophyllum priscum n.sp., Dawson, 1456. 
Ulmus minima? Ward, Knowlton, 3255. 
oregoniana n. sp., Knowlton, 3262. 
pseudo-fulva? Lx., Knowlton, 3255. 
recemosa, Dawson, <;. m., ins. 
speeiosa Newb., Newberry, 1083. 
tenuinervis, Bollick, 2708. 
Ulocrinus n. gen., Miller and Gurley, 3991. 
buttsi n. sp., Miller and Gurley, 3991, 
3997a. 
kansasensis n. sp., Miller and i hirlej . 3991. 
OCCidentalis n. sp., Miller and Gurley, 
3997a. 
Ulodendron, Dawson. 1 155. 
Ultimus precursor n. sp., (hippy and Dall, 
2214. 
Umbonium duplinense u. sp., Dall, 1269. 
undnla n. sp., Dall, L269. 
(Solariorbis) tloridannm n. sp., Dall, 1269. 
Umbraculum sp., Aldrieh. 7::. 
Umbrella sylvaerupis n. sp., Harris, 2316. 
Uncia inexpectata Cope, Cope, 1104. 
mercerii n. sp., Cope, 1099. 
UncinelliWaagen, Hall and Clarke, 2261, 2264. 
Uncinulina Bayle, Hall and Clarke, 2261a. 
Uncinulus Bayle, Hall and Clarke, 2261a, 2264. 
? acutiplicatus (Hall), Girty, 2037. 
pyramidatus Hall?, Girty, 2037. 
Uncites Defrance, Hall and Clarke, 2261, 2264. 
Unigerina asperula Czjzek, Woodward and 
1 homas, 6433. 
eanariensis d'Orbigny, Woodward and 
Thomas, 6433. 
Unio baileyi n. sp., Logan, 3559. 
barbouri n. sp., White, 6035. 
belliplicatus Meek, White, 6036. 
dockumensis n.sp., Simpson, 4978. 
dumblei n. sp., Simpson, 4978. 
graciliratus n. sp., Simpson, 4978. 
knighti n. sp., Logan, 3559. 
subplanatus n. sp., Simpson, 4978. 
vetustus Meek, White, 6036. 
Paleontology— Continued. 
Gt in ra and species described— Continued. 
Unio willistoni n. sp., Logan, 3559. 
(Unio) caloossensis n. sp., Dall, 1272. 
Unitrypa Simpson, 4983. 
Unitrypa Hall, Grabau, 2086. 
acclivis Hall, Clarke, 971. 
lata Hall, Clarke, 971. 
sealaris Hall, Grabau, 2086. 
Uranoplosns arctatns n. sp., Cope, 1093. 
flectidens n. sp., Cope. 1093. 
Urosalpinx trossulus Conrad, Dall, 1259. 
Urosyea caudata Gabb, Stanton. 5198. 
Urotheea n. gen., Mattln-w. 3788. 
flagellum n. sp., Matthew. :5788. 
parva n. sp.. Matthew . 3788. 
pervetns, Matthew . 3790. 
pervetus Matthew, Burr, 666. 
pervetua Matthew, Grabau, 2092. 
Ursus americanus pallas, Cope, 1104. 
haplodon a. sp., Cope, 1101. 
haplodon Cope. Cope, 1104. 
procerus, n. sp.. Miller, 3988a. 
Utrienlns vaginatus n. sp., Dall, 1259. 
Uvigerina canadensis, Bagg, 148. 
pygmaea, Bagg, 1 18. 
tenuistriata, Bagg, l is. 
te luistriata Reuss, Chapman, 870. 
Vaginella chipolana n. sp.. Dall, 1259. 
Vaginoceras belemnitiforme, Hyatt, 2820. 
Vaginulina legumen, Bagg, l 18. 
legumen i Lime- 1, Bagg, 150. 
strigillata Reuss, Bagg, 150. 
Valvata leel n. sp., Logan, 3 
triearinata Say, Baker, 217. 
Vanikoro propinqua n. sp., Cragin, ills. 
Vanikorpsis tu eyana M. and 11., Herrick 
and Johnson, 246 ». 
Vanuxemia Billings, Ulrich, 5539. 
abrupta n. sp., Ulrich, 5539. 
crassa n. sp., Ulrich, 5539. 
decipiens n. sp., Ulrich, 5539. 
dixonensis Meek and Worthen, Ulrich, 
5539. 
var. insueta n. var.. Ulrich, 5539. 
hayniana Safford, Ulrich, 5539. 
media n. sp., Ulrich, 5539. 
obtnsilrons Ulrich, Ulrich, 5539. 
rotundata Hall, Ulrich, 5539. 
sardesoni Ulrich, Ulrich, 5539. 
suberecta n. sp., Ulrich, 5539. 
subrotunda n. sp.. Ulrich, 5539. 
tenninalis Ulrich, Ulrich. 5539. 
nmhonata n. sp.. Ulrich, 5539. 
wort heni Ulrich, Ulrich. 5539. 
Vasum eonoidesn. sp., Whitfield, 6097. 
humerosum, Vaughan, 5722. 
Venericardia alticostata var., Harris, 2313. 
alticostata, Harris, 2310. 
granulata, Say, 4813. 
planicosta Lamarck, Clark, 906. 
planicosta, Harris, 2310, 2313, 2315. 
var. smithi, Harris, 2310. 
smithii n. sp., Aldrieh, 70. 
trapaquara n. sp., Harris, 2307. 
Veniella goniophora Meek, Stanton, 5191. 
goniophora, Meek, Herriek, and Johnson, 
2465. 
