138 
BIBLIOGRAPHY AND INDEX OP N. A. GEOLOGY, [bull. 149. 
Paleontology — Continued. 
Genera and species described — Continued. 
Manicaria sp., Dawson, No. 176. 
Manicina pliocenica n. sp., Gane, No. 235. 
Margarita brownii n. sp., Cragin, No. 142. 
Martesia dalliana n. sp., Harris, No. 279. 
Mazzalina 
impressa, Harris, No. 279. 
inaurata var. Con., Harris, No. 280. 
Megalonyx wheatleyi Copo, Cope, No. 130. 
Megistocrinus indianensis n. sp., Miller and 
Gurley, 508. 
Melanopsis planoidea n.sp., Aldricli, No. 11. 
Melocrinus nodosus, "Whitfield, No. 752. 
Melonites 
giganteus n. sp., Jackson, No. 357. 
septanarius n. sp., Jackson, No. 357. 
multiporus, Jackson and Jagger, No. 358. 
Menispermites 
borealis Heer (?), Newberry, No. 519. 
wardianus Hollick, n. sp., Newberry, No. 
519. 
Mephitis 
nssidens n.sp., Cope, No. 136. 
orthostichus n. sp., Copo, No. 136. 
Meretrix 
cornelli n. sp., Harris, No. 277. 
mortoniopsis var. Hp., Harris, No. 280. 
pearlensis n. sp., Harris, No. 280. 
perovata var. aldrichi n. var., Harris, No. 
277. 
ripleyana, Harris, No. 279. 
sp., Harris, No. 279. 
sp., Stanton, No. 617. 
Mesalia 
alabamiensis, Harris, No. 279. 
pleboides n. sp., Vaugban, No. 698. 
putaila, Harris, No. 279. 
var. alien tonen sis, Harris, No. 279. 
var. hardemanensis, Harris, No. 279. 
var. wilcoxiana, Harris, No. 279. 
vetusta Con., Harris, No. 277. 
watsonensis n. sp., Harris, No. 279. 
( ? ) , Harris, No. 279. 
Mesocetus siphunculus, Cope, No. 135. 
Mesodon abrasus n. sp., Cragin, No. 143. 
Mesohippus 
bairdi, Earr, No. 218. 
copei, Earj-, No. 218. 
intermedins, Earr, No. 218. 
Metopocetus durinasus n. gen. et sp., Cope, 
No. 135. 
Mezoneurum bridgetonense n. sp., Hollick, 
No. 331. 
Microdiscus Emmons, Matthew, No, 490. 
dawsoni Hartt, Matthew, No. 490. 
precursor, Matthew, No. 490. 
puncheU us Hartt, Matthew, No. 490. 
punctatus Salter, Matthew, No. 490. 
schucherti n. sp., Matthew, Nos.486, 490. 
Microtus diluvianus n. sp., Cope, No. 136. 
Microzamia gibba (Reuss) Corda, Newberry, 
No. 519. 
Mitra 
hatcbetigbeensis?, Harris, No. 279. 
subpontis n. sp., Harris, No. 279. 
Paleontology — Continued. 
Genera and species described — Continued. 
Mitra marylandica n. sp., Clark, Nos. 118, 122. 
sp., Clark, No. 118. 
Modiola 
alabamensis n. sp., Aldrich, No. 11. 
major Gabb, Stanton, No. 648. 
potomacensis n. sp., Clark, Nos. 118, IL'2. 
saffordi, Harris, No. 279. 
subpontis n. sp., Harris, No. 279. 
Modiolopsis 
plana, Whitfield, No. 752. 
( ?) superba, Whitfield, No. 752. 
Monocerasjacksonium n. sp., Harris, No. 280. 
Monoclonius, Marsh, No. 480. 
Monotrypa rectimuralis Ulrich, James, No. 
360. 
Moriconia cyclotoxon Deb. and Ett., New- 
berry, No. 519. 
Morosaurus, Marsh, Nos. 480, 481. 
Monticulipora 
(Constellaria) Dana, James, No. 300. 
polystomella Nicholson, James, No. 
360. 
parva Ulrich, James, No. 360. 
(Dekayia) Edw. and H., James, No. 360. 
aspera Edw. and H., James, No. 300. 
hospitalis var. neglecta James, James, 
No. 360. 
maculata James, James, No. 360. 
pelliculata Ulrich, James, No. 360. 
(Fistulipora) McCoy, James, No. 300. 
granulifera (Ulrich), James, No. 300. 
milfordensis James, James, No. 360. 
nicholsoni James, James, No. 360. 
oweni James, James, No. 360. 
rustica Ulrich, James, No. 360. 
subcylindrica U. P. James, James, No. 
360. 
Murchisonia indianensis n. sp., Miller and 
Gurley, No. 511. 
Murex 
elegantissimus n. sp., Aldrich, No. 11. 
marksi Harris, Harris, No. 280. 
merulus Con., Harris, No. 280. 
(Pteronotus) matthewsensis, Harris, No. 
279. 
Myliobatis copeanusn. sp., Clark, Nos. 118, 122. 
Myconcha americana n. sp., Stanton, No. 648. 
Myrica 
acuta Hollick n. sp., Newberrv, No. 519. 
cinnamonifolia n. sp., Newberry, No. 519. 
emarginata Heer ( ?), Newberry, No. 519. 
fenestrata n. sp., Newberry, No. 519. 
newberryana Hollick, n. sp., Newberry, 
No. 519. 
parvula Heer, Newberry, No. 519. 
raritanensis Hollick n. sp., Newberry, No. 
519. 
Myrsino borealis Heer, Newberry, No. 519. 
elongata n. sp., Newberry, No. 519. 
oblongata Hollick n. sp., Newberry, No. 
519. 
Mytilarca jessiese n. sp., Miller and Gurley, 
No. 511. 
Nanosaurus, Marsh, No. 480. 
