WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
251 
Paleontology— Continued. 
Genera and species described— Continued. 
Orthothetes chemungensis (Conrad), Weller, 
5994. 
desideratus n. sp., Hall and ^larke, 2260, 
2268. 
inaequalis Hall, Girty, 2038. 
insequalis (Hall), Weller, 6006. 
perversus Hall, Grabau, 2086. 
Orthotichia, Hall and Clarke, 2260. 
Orthotropia dolomitiea, Hall and Clarke, 2268. 
Ortonella hainesi, Ulrich, 5535. 
Oryctoblattina laqueata n. sp., Scudder, 4898. 
Oryctocephalus Walcott, Matthew, 3788. 
reynoldsi n. sp., Reed, 542. 
walkeri n. sp., Matthew, 3788. 
Oryctogma n. gen., Scudder, 4894. 
sackenii, Scudder, 4894. 
Oryctomya n. subgen., Dall, 1277. 
Oryctorhinus n. gen., Scudder, 4890. 
tenuirostris, Scudder, 4890. 
Oryctoscirtetes protogaeum, Scudder, 4900. 
Oscilla indiscreta n. sp., Guppy and Dall, 2214. 
Osmotherium Cope, Cope, 1104. 
spelaeum, Cope, 1101, 1104. 
Osmunda allinis Lx., Knowlton, 3255. 
doroschkiana Goppert, Knowlton, 3232. 
Osteocephalus, Case, 767. 
Osteolepis, Case, 767. 
Ostrakichnitescarl.onarius Dawson, Packard, 
4229. 
Ostrea Lamarck, Dall, 1272. 
alabamiensis Lea, Dall, 1272. 
alabamiensi.s Lea, Harris, 2313. 
alifera n. sp., Cragin, 1115. 
var. nov. pediformis, Cragin, 1115. 
altcrnans n. sp., Cragin, 1115. 
ancepsn. sp., Logan, 3554. 
anomoides Meek, Stanton, 5191. 
attenuata n. sp., Logan, 3557 
bella Con., Cragin, 1115. 
bellaplicata Shum., Cragin, 1115. 
beloiti n. sp., Logan, 3555. 
camelina n. sp., Cragin, 1115. 
canonensis n. sp., Logan, 3557. 
carican. sp., Cragin, 1115. 
carolinensis Conrad, Dall, 1272. 
comoensis n. sp., Logan, 3559. 
compressirostra Say, Clark, 906. 
compressirostra Say, Dall, 1272. 
compressirostra, Harris, 2313. 
compressirostra, Say, 4983. 
congesta Conrad, Logan, 3554, 3557. 
congesta Conrad, Stanton, 5191. 
convexa, Say, 4983. 
crenula n. sp., Logan, 3557. 
crenulimarginata Gabb, Dall. 1272. 
crenulimarginata, Harris, 2310, 2315. 
crenulimargo Roem., Cragin, 1115. 
var. nov. stonewallensis, Cragin, 1115. 
cretacea Morton, Aldrich, 73. 
densa n. sp., Logan, 3559. 
diluviana Linn, Cragin, 1115. 
exogyroidea n. sp., Logan, 3557. 
falco, n. sp., Dall, 1269. 
falco Dall, 1272. 
franklini Coq., Cragin, 1115. 
Paleontology— Continued. 
Genera and species described— Continued. 
Ostrea franklini, Coquand?, Herrick and 
Johnson, 2465. 
franklini ragsdalei n. var., Hill, 2539. 
georgiana Conrad, Dall, 1272. 
glabra, White, Herrick and Johnson, 2465. 
haitensis Sowerby, Dall, 1272. 
haydeni n. sp., White, 6036. 
incurva n. sp., Logan, 3557. 
jewellensis n. sp., Logan, 3557. 
johnsoni Aldrich, Dall, 1272. 
kansasensis n. sp., Logan, 3557. 
larva, Harris, 2315. 
lata n. sp., Logan, 3557. 
leeii n. sp., Logan, 3557. 
lugubris Con., Cragin, 1115. 
lugubris Conrad, Logan, 3554. 
lugubris Conrad, Stanton, 5191. 
lyoni Shum., Cragin, 1115. 
malachitensis n. sp., Stanton, 5191. 
megodon, Dall, 1272. 
munsoni n. sp., Hill, 2540. 
percrassa Conrad, Dall, 1272. 
percrassa, Whitfield, 6101. 
perversa n. sp., Cragin, 1115. 
plumosa Mort., Cragin, 1115. 
plumosa, Harris, 2315. 
podagrina n. sp., Dall, 1269, 1272. 
prae-compressirostra n. sp., Harris, 2305. 
pulaskcnsis Harris, Dall, 1272. 
pulaskensis, Harris, 2310, 2315. 
prudentia White, Stanton, 5191. 
sculpturata Conrad, Dall, 1272. 
sellaeformis Conrad, Clark, 906. 
sellaeformis Conrad, Dall, 1272. 
sellaeformis Conrad, Harris, 2313. 
soleniscus, Stanton, 5191. 
soleniscus Mk., Cragin, 1115. 
Strigilecula White, Logan, 3559. 
strigilecula Whit., Stanton, 5206. 
subovata Shum., Cragin, 1115. 
subspatulata Forbes, Cragin, 1115. 
thirsaeGabb, Dall, 1272. 
thirsa-. Harris, 2313,2315. 
trigonalis Dall, 1272. 
var. sylvaerupis, Harris, 2313. 
translucida M. and 1L, Herrick and John- 
son, 2165. 
uniformis Meek, Stanton, 5191. 
vicksburgensis Conrad, Dall, 1272. 
virginiana, Whittield, 6101. 
var. procyon, Whitfield, 6101. 
virginica Gmelin, Dall, 1272. 
welleri n. sp., Logan, 3557. 
willistoni n. sp., Logan, 3557. 
(Alectronta) larva Lamarck, Logan, 3554. 
(Gryphaeostrea) subeversa Conrad, Dall, 
1272. 
sp., Clark, 906. 
sp., Herrick and Johnson, 2465. 
sp., Stanton, 5199. 
Otiorhynchites absentivus, Scudder, 4890. 
commutatus, Scudder, 4890. 
fossilis, Scudder, 4890. 
tysoni, Scudder, 4S90. 
utiorhynchus flaccus, Scudder, 4890. 
