PALEONTOLOGICAL INDEX 



327 



Lunnlites regularis, 217. 



Luntilites reversa, 63, 80, 81, 211, 312. 



Lunulites semilunaris, 217. 



M. 



Malacostraca, 116. 



Mang'ilia (Pleurotomella) bellistriata 



74, 75, 12S, 272. 

 Marginulina, 240. 



Marginulina costata, 63, 80, 81, 2Jfi, 



315. 

 Melongena (?) liotomacensis, 63, 74, 



75, 13G, 274. 

 Melongena subcarinata, 137. 

 Membranipora angusta, 63, SO, 81, 213, 



312. 

 Membranipora lineata, 213. 

 Membranipora peramjDla, 212. 

 Membranipora rimnlata, 63, 80, 81, 211, 



312. 

 Membranipora spiculosa, 63, 80, 81, 



212, 214, 215, 312. 

 Membraniporidae, 211. 

 Mei^etrix lenis, 67, 76, 77, 16S, 285. 

 Meretrix liceatas 168. 

 Meretrix nuttalliopsis, 169. 

 Meretrix ovata, 168. 

 Meretrix ovata var. ovata, 64, 65, 76, 



77, 168, 286. 

 Meretrix ovata var. pyga, 60, 61, 68, 69, 



71, 72, 73, 78, 79, 85, 88, 169, 286. 

 Meretrix pyga, 170. 

 Meretrix snbimiDressa, 67, 70, 71, 78, 



79, 85, 88, no, 286. 

 Mesalia obruta, 70, 71, 72, 76, 77, 85, 87, 



88, Ud, 279. 

 Metiila marylandica, 63, 76, 77, tS9, 



275. 

 Microporidae, 216. 



Mitra marylandica, 63, 74, 75, 132, 273. 

 Mitra pomonkensis, 63, 74, 75, 132, 273. 

 Mitra potomacensis, 70, 71, 74, 75, 133, 



273. 

 Mitra sp., 132. 

 Mitsikurina, 1C3. 

 Modiola alabamensis, 185. 

 Modiola potomacensis, 185. 

 Modiolus alabamensis, 59, 78, 79, 85, 



87, 88, 185, 295. 

 Modiolus marj^andicus, 67, 71, 78, 79, 



186, 295. 

 Modiolus (Brachydontes) potomac- 

 ensis, 185. 

 Molluscoidea, 78, 79, 80, 81, 203. 



Mollusca, 74, 75, 76, 77, 78, 79, 122. 



Monodonta glandula, 157. 



Morio brevidentata, 63, 76, 77, 85, 86, 



Wt, 276. 

 Mucronella aspera, 63, 80, 81, 221, 312. 

 Multicrescis parvicella, 259. 

 Muricidea, 135. 

 Myliobatis, .98. 

 Myliobatis copeanus, 59, 74, 75, 99, 264, 



265. 

 Myliobatis holmesii, 100. 

 Myliobatis magister, 100, 264, 265. 

 Mjdiobatis pacbyodon, 99. 

 Myliobatis pentoni, 100. 

 Myliobatis sp., 101, 265. 

 Myliobatidae, 98. 

 Mytilidae, 185. 



Narona, 129. 



Naticidae, 150. 



Natica cliftonensis-, 76, 77, 150, 280. 



Natica eminula var., 151. 



Nautiloidea, 122. 



Nautilus (Ortlioceras) costatus, 240. 



Nautilus legumen, 240. 



Nautilus lobatulus, 252. 



Nautilus obliquus, 239. 



Nautilus sp., 122. 



Niso umbilicata, 63, 76, 77, 85, 86, 156, 



281. 

 Nodosaria affinis, 66, 80, 81, 236, 314. 

 Nodosaria bacillum, 59, 80, 81, 236, 314. 

 Nodosaria communis, 60, 80, 81, 231, 



314. 

 Nodosaria consorbrina v. emaciata, 



63, 80, 81, 238, 314. 

 Nodosaria obliqua, 63, 80, 81, 239, 314. 

 Nodosaria sandbergeri, 63, 80, 81, 238, 



314. 

 Nodosaridae, 236. 

 Noetia pulchra, 195. 

 Nonionina affinis, 67, 80, 81, 257', 316. 

 Nonionina punctata, 257. 

 Nucula capsiopsis, 201. 

 NucLila cultellifornais, 198. 

 Nucula improcera, 199. 

 Niicula magnifica, 2C2. 

 Nucula ovula, 72, 78, 79, 85, 86, 202, 



309. 

 Nucula parilis, 199. 

 Nucula parva, 197. 

 Nucula potomacensis, 64, 67, 78, 79, 



202, 309. 



