238 INDEX TO NOKTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Paleontology— Continued. 
Genera and species described — Continued. 
Megalonyx, Safford, 802. 
Megalonyx, Hovey, 2787. 
leptostomus Cope, Cope, 1087. 
loxodon Cope, Cope, 1104. 
scalper Cope, Cope, 1104. 
tortulus Cope. Cope, 1104. 
wheatleyi Cope, Cope, 1101,1104. 
Megalopteris plumosa n. sp., White, 6052. 
Megambonia crenistriata, n. sp., Clarke, 971. 
lata Hall, Girty, 2037. 
Megathyris D'Orbigny, Hall and Clarke, 2264. 
Megerlia dubitanda n. sp., Cooper, 1071. 
Megerlina Deslongchamps, Hall and Clarke, 
2264. 
Megistocrinus O. and Shum., Wachsmuth and 
Springer, 5765a. 
abnormis (Lyon), Wachsmuth and 
Springer, 5765a. 
concabus Wachsmuth, Wachsmuth and 
Springer, 5765a. 
depressus (Hall), Wachsmuth and 
Springer, 5765a. 
evansi O. and Shum., Wachsmuth and 
Springer, 5765a. 
evansi var. crassus (White), Wachsmuth 
and Springer, 5765a. 
farnsworthi (White), Wachsmuth and 
Springer, 5765a. 
latus (Hall), Wachsmuth and Springer, 
5765a. 
multidecoratus (Barris), Wachsmuth and 
Springer, 5765a. 
nobilis W. and Sp., Wachsmuth and 
Springer, 5765a. 
nodosus (Barris), Wachsmuth and 
Springer, 5765a. 
rugosus Lyon and Cass., Wachsmuth and 
Springer, 5765a. 
spinosulus Lyon, Wachsmuth and 
Springer, 5765a. 
Megistocrinus brevicronis Hall, Keyes, 3061. 
evansi (Owen and Shumard), Keyes, 3061. 
expansus n. sp., Miller and Gurley, 3997b. 
hemisphericus n. sp., Miller and Gurley, 
3998. 
indianensisn. sp., Miller and Gurley, 3999. 
ornatus n. sp., Miller and Gurley, 3998. 
Meioceras cingulatum n. sp., Dall, 1257. 
Melampus clarkii n. sp., White, 6036. 
Melania sylvserupis n. sp., Harris, 2316. 
trigemmata Con., Harris, 2316. 
Melanopsis anita Aid., Harris, 2316. 
planoidea n. sp., Aldrich, 73. 
planoidea Aid., Harris, 2316. 
Melina Retzius, Dall, 1272. 
maxillata (Deshayes), Dall, 1272. 
Melocrinus Goldfuss, Weller, 6002. 
sequalis n. sp., Miller, 3995. 
gregari n. sp., Rowley, 4673. 
lylii n. sp., Rowley, 4674. 
milwaukensis n. sp., Weller, 5988. 
var. rotundus n. var., Weller, 5988. 
nodosus Hall, Weller, 5988. 
var. spinosus n. var., Weller, 5988. 
nodosus, Whitfield, 6102. 
Paleontology — Continued. 
Genera and species described — Continued. 
Melocrinus oblongus n. sp., Wachsmuth and 
Springer, 5765. 
obpyramidalis (Winchell and Marcy), 
Weller, 6002. 
parvus n. sp., Wachsmuth and Springer, 
5765. 
roemeri n. sp., Wachsmuth and Springer, 
5765. 
sampsoni n. sp., Miller and Gurley, 3998. 
subglobosus n. sp., Weller, 5988. 
tersus n. sp., Rowley, 4674. 
Melongena corona Gmelin, Dall, 1259. 
sculpturata var. turricula, Dall, 1259. 
subcoronata var. aspinosa, Dall, 1259. 
Melonites crassus Hambach, Keyes, 3077. 
giganteus n. sp., Jackson, 2871. 
indianensis n. sp., Miller and Gurley, 
3997a, 
multipora Norwood and Owen, Keyes, 
3061, 3077. 
multiporus, Jackson and Jagger, 2872. 
septanarius n. sp., Jackson, 2871. 
Menisccessus Cope, Osborn, 4184. 
Meniscophyllum, n. gen., Simpson, 4984. 
minutum, n. sp., Simpson, 4984. 
Menispermites borealis Heer (?), Newberry, 
4080. 
drysoniana n. sp., Hollick, 2672. 
knightii n. sp., Knowlton, 3264. 
rugosus n. sp., Lesquereux, 3470. 
virginiensis Font., Ward, 5846. 
wardianus Hollick, n.sp., Newberry, 4080. 
Menodus augustigenis, Ami, 84. 
Menophyllum (?) excavatum n. sp., Girty, 
2038. 
Mephitis Linn., Cope, 1104. 
fissidens n. sp., Cope, 1101, 1104. 
leptops Cope, Cope, 1104., 
obtusatus Cope, Cope, 1104. 
orthostichus n. sp.. Cope, 1101, 1104. 
Mercenaria cancellata, Whitfield, 6101. 
plena, Whitfield, 6101. 
Meretrix cornelli n. sp., Harris, 2308. 
fulva n. var., Harris, 2313. 
greggi n. var., Harris, 2313. 
hatchetigbeensis, Harris, 2313. 
mortoniopsis var. Hp., Harris, 2311. 
nuttaliopsis, Harris, 2313. 
pearlensisn. sp., Harris, 2311. 
perovata var. aldrichi n. var., Harris, 2308. 
ripleyana, Harris, 2310. 
subimpressa var., Harris, 2313. 
texacola n. sp., Harris, 2307. 
sp., Harris, 2310. 
sp., Stanton, 5198. 
Merista Suess, Hall and Clarke, 2261, 2264. 
houghtoni, Lane, 3400. 
tennesseensis n. sp., Hall and Clarke, 
2261a, 2263, 2268. 
Meristella Hall, Grabau, 2086. 
Meristella, Hall and Clarke, 2261, 2264. 
arcuata var. atoka n. var., Girty, 2037. 
barrisi Hall, Grabau, 2086. 
bella, Whitfield, 6099. 
haskinsi Hall, Grabau, 2086. 
