116 
BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 146. 
Paleontology — Continued. 
Genera and species described— Continued. 
Loxonema 
boydii Hall, Whiteaves, 538. 
magnum Whitfield, var., Whiteaves, 538. 
multicosta Meek and Worthen, Keyes, 
258. 
scitulum Meek and Worthen, Keyes, 258. 
tenuilineatum (Shumard), Keyes, 258. 
Loxoploeus solutus Whiteaves, Whiteaves, 
538. 
Lucifer, Beecher, 40. 
Lutraria senna, James, 236. 
Lyropora retrosa Meek and Worthen, Keyes, 
258. 
Machserodus crassidens Cragin, Williston, 
543. 
Maclurea magna (Le Sueur), Keyes, 258. 
Macrodon 
ohsoletus Meek, Keyes, 258. 
sangamonensis ? Worthen. Keyes, 258. 
tenuistriatus Meek and Worthen, Keyes, 
258. 
Mactra antiqua. Stanton, 459. 
Magnolia alternans Heer, Lesquereux, 293. 
Mangilla suturalis n. sp., Cooper, 91. 
Martesia texana n. sp., Harris, 185. 
Matamynodon planifrons S. &. O., Osborn and 
Wortman, 363. 
Mazonia Meek and Worthen, Scudder, 426. 
acadica, Scudder, 426. 
Mazonia sp., Scudder, 426. 
Medusites lindstromii, James, 235. 
Meekella striatocostata (Cox), Keyes, 258. 
Megalomus canadensis Hall, Whiteaves, 538. 
Megerlia duhitanda n. sp., Cooper, 91. 
Megistocrinus 
brevicronis Hall, Keyes, 257. 
evansi (Owen and Shumard), Keyes, 257. 
hemisphericus n. sp., Miller and Gurley 
346. 
ornatus n. sp., Miller and Gurley, 346. 
Melampus clarkii n. sp., White, 535. 
Melocrinus sampsoni n. sp., Miller and Gur- 
ley, 346. 
Melonites 
crassus Hambach, Keyes, 260. • 
multipora Norwood and Owen, Keyes. 
257, 260. 
Menispermites virginiensis Font., Ward, 
517. 
Meretrix texacola n. sp., Harris, 185. 
Meristina nitida, Girty, 166. 
Mesalia claibornensis Con., Harris, 185. 
Mesocetus siphunculus n. sp., Cope, 92. 
Mesohippus Marsh, Osborn and Wortman, 
363. 
copei n. sp., Osborn and Wortman, 363. 
intermedius n. sp., Osborn and Wortman, 
363. 
Mesonyx uintensis, Osborn, 361. 
Mesotrypa n. gen., Ulrich, 485. 
discoidea n. sp., Ulrich, 485. 
infida Ulrich. Ulrich, 485. 
quebecensis Ami sp., Ulrich, 485. 
? rotunda n. sp., Ulrich, 485. 
? spinosa n. sp., Ulrich, 485. 
Paleontology— Continued. 
Genera and species described— Continued. 
Metablastus 
bipyramidalis (Hall), Keyes, 257. 
lineatus (Shumard), Keyes, 257. 
worthen i (Hall), Keyes, 257. 
Miacis uintensis n. sp., Osborn 361. 
Michelinia, Girty, 166. 
Micmacca n. gen., Matthew, 319. 
matthevi n. sp., Matthew, 319. 
? plana n. sp., Matthew, 319. 
recurva n. sp., Matthew, 319. 
van-ingeni n. sp., Matthew, 319. 
Microblattina n. gen., Scudder, 427. 
perdita, n. sp., Scudder, 427. 
Microsyops uintensis n. sp., Osborn, 361. 
Miochenus Cope, Osborn and Earle, 362. 
turgidus Cope, Osborne and Earle, 362. 
Mitoclema Ulrich, Ulrich, 485. 
? mundulum Ulrich, Ulrich, 485. 
Mitra simplicissima n. sp., Cooper, 91. 
Modiola 
houstonia n. sp., Harris, 185. 
pealei n. sp., White, 535. 
Moina rectirostris, Beecher, 40. 
Monomerella *»* 
durhamensis n. sp., Whiteaves, 538. 
sp. undet., Whiteaves, 538. 
Monopteria 
gibbosa (Meek and Worthen), Keyes, 
258. 
longispina (Cox), Keyes, 258. 
Monotis ? gregariaMeek and Worthen, Keyes, 
258. 
Monotrypa Nicholson, Ulrich, 485. 
intabulata n. sp., Ulrich, 485. 
magna n. sp., Ulrich, 485. 
nodosa n. sp., Ulrich, 485. 
( ? Chastetes) cumulatan. sp., Ulrich, 485. 
Monticulipora d'Orbigny, Ulricb, 485. 
arborea n. sp , Ulrich, 485. 
aspera Ulrich, James, 237. 
asperula Ulrich, James, 237. 
calceola Miller and Dyer, James, 237. 
?cannonensisn. sp., Ulrich, 485. 
clavacoidea James, James, 237. 
cleavelandi James, James, 237. 
clintonensis James, James, 237. 
compressa Ulrich, James, 237. 
contexta Ulrich, James, 237. 
crnstulata James, James, 237. 
cumulata Ulrich, James, 237. 
curvata Ulrich, James, 237. 
dawsoni Nicholson, James, 237. 
dychei James, James, 237. 
flabellaris Ulrich, James, 237. 
frondosa d'Orbigny, James, 237. 
fusiformis Whitfield, James, 237. 
grandis Ulrich, Ulrich, 485. 
incompta n. sp., Ulrich, 485. 
inflecta Ulrich, James, 237. 
kevis Ulrich, James, 237. 
lamellosa Ulrich, James, 237. 
mammulata d'Orbigny, James, 237. 
molesta Nicholson, James, 237. 
ortoni Nicholson, James, 237. 
papilla ta McCoy, James, 237. 
parasitica Ulrich, James, 237. 
