244 



NEW YORK STATE MUSEUM 



ulipi >ra, 50. 



1 .] 1 1, isc brook, 82. 



M >se River sandstone, 53, 54; fauna, 6, 

 17. 59, 61, 71, 81, 86, 88, 127-2S; dis- 

 tribution, 89-90. 



Moosehead lake, fossils from, 55, 57, 58, 

 62, 66, 67, 68, 69, 70. 72. 74, 75, 76, 77, 



79, 



Si, 82, 83, 84, 85, 86, 87, 88. 



Mount Kineo, 59. 



Murehison. Sir Roderick, specimens pre- 

 sented to Museum by, 93 ; cited, 32, 36, 



92, 100. 

 Murchisonia, 57. 



angulata, 100. 



cingulata, too. 



egregia, 100. 



hebe, 100. 



losseni, 100. 

 Myalina, 106. 



pterinaeoides, 106, 127. 



explanation of plate, 216, 218. 



solida, 30. 

 Mytilarca sp., 141. 



dalho'usie, 14, 30. 



explanation of plate, 176. 



ovata, 30. 



solida, 30 



New Brunswick, passage from into New 



York, 153. 

 Nucleospira concent rica, 14, 4;. 



elegans, 1 20, 128, 133, 150. 



ventricosa, 133, 150. 

 Nucula cf. krachtae, 111, 128. 



ex planation of plate, 223. 

 Nuculana (Cucullella) elliptica, 37. 

 uriformis, 37. 



(Ditichia) securis, 14, 37. 

 explanation of plate, 180. 

 Nuculitcs, 1 10. 



barret ti, 149. 



branneri, 36. 



(Ditichia) doto, 140, T40. 



Nuculites (Ditichia) doto., explanation of 



plate, 232. 

 cf. elliptieus, in, 127. 



explanation of plate, 222. 

 folles, see Palaeoneilo (Nuculites) folles. 

 fraxinus, 141, 149. 



explanation of plate, 232. 

 cf. oblongatus, 111, 127. 



explanation of plate, 222. 

 Nylander, Olof O., fossils arranged by, 91; 

 assistance from, 92; cited, 53, 37, 58, 65. 



OEhlert, cited, 102. 



Oneida conglomerate, 158. 



Onondaga fauna, 13-15. 



Opercula of Euomphalus, explanation of 



plate, 168. 

 Opercula of Gastropods, 13, 25. 

 Orange county, Oriskany fauna, 130. 

 Orbiculoidea sp., 15, 48. 



explanation of plate, 188. 

 cf. ampla, 126, 128, '152. 



explanation of plate, 228. 

 jervisensis, 152. 

 cf. siegenensis, 126, 128. 

 explanation of plate, 228. 

 Oriskania navicella, 149. 



sinuata, 149. 



Oriskany sandstone, 129, 160; of Maine, 52, 



54, 57; thickness. 57; line of division 



between Siluric and Devonic in, 92 ; at 



Highland Mills, 136-37; altitude, 157. 



fauna: 6, 13-15, 89-90, 127-28, 130, 



i3 2 -34. i34-3 6 i i54. 155: at High- 

 land Mills. 138-46; of New York- 

 New Jersey region, 146-53. 

 Orthis sp., 125-26, 128. 



explanation of plate, 228. 



circularis. 125. 



mut. postuma, 125. 



deformis, 124. 



dorsoplana, 126. 



hybrida, 47. 



