

447 



Neozoic Age, 46. 



394- 

 Nephrops, 



Xephthya, 1 1 i . 

 Nephthys, 221. 



. 220. 



Xerine, 222. 



Nerita, 292. 



Xcritida;, 307. 



Xoritina, 292, 307. 



Xerve endings, 23. 



Xervous system of Bryozoa, 227. 



,, Chrctognatha, 207. 

 ::inus, I4v 



., Hirudinea, 129. 



.. Nemerteans, 157. : 



.. Mollusca, 207, 287. 



Insects, 388. 

 Xeurin, 6. 

 Xcuroglia, 15. 

 Xeurobranchiata, ^ 1 1 . 

 X"curomuscular cell:-. 

 X'europtera, 405. 

 Nicoletia, 402. 

 Xicothoe, 347. 

 Xidalia, 117. 

 Niphargus, 360. 



-i'h, 398. 

 Xoctilucoe, 56. 

 Xoctua, 411. 

 Xoctuidae, 411. 

 Nodosaria, 54. 

 Xonioninidae, 54. 



374- 



i America, 43. 

 Xotarchus, 305. 

 [98. 



ridoe, i Go. 



^ 17- 



hord, 15. 



.mata. 194. 



ecta, 401. 

 Xubccularia, 53, 



ula, 287. 

 Xucleobranchiata, 2^4. 



is, 4, 237. 

 ;, 1 1 . 



Xummuliti 

 Nutrr 



| 



Obisium, 376. 

 Occiput, 384. 

 Occlusores, 250. 

 Oceania, 92. 

 Ocelli, 89, 150. 

 Ochnus, 153. 

 Octactinia, 117. 

 Octocotyle, 174. 

 Octomeris, 345. 

 Octopus, 245, 314. 

 Octorchidce, 95. 

 Octorchis, 95. 

 Oculinidae, 116. 

 Oculininne, 117. 

 Ocj-pode, 357. 

 Ocyroidae, 109. 

 Odonata, 391. 

 Odontobius, 184. 

 Odontognatha, 288, 312. 

 Odontophore, 287. 

 Odynems, 420. 

 CEcistidrc, i<)7. 

 CEcistes, ig;. 

 CEcoid, 32. 

 CEdipoda, 404. 

 CErsted, 161. 

 CErstedia, 162. 

 CEsophagus, 30. 

 Oestrus, 394. 

 Oigopsida?, 325. 

 ( )ikosites, 40. 

 ( )iketicus, 384. 

 ( )ldhamia, 47. 

 ( >lf;ietory organs. 

 Oligochocta, 218. 

 ( Jli^opori, 146. 

 Oliva, 281, 309. 

 ( )]i\-id:c, 300. 



OUulanns, is.. 

 ( hnmatidae, (13. 



()minastre])lies, 314. 



Onunatopfea, 162. 

 Ommatophorcs, 286, 297. 

 Omostegite, 353. 



( )ncliidium, 290, 2-^. 

 Onchidoridrc, 308. 



OIH hidoiis, 305. 

 Onchocc-na,' iS(,. 



< )nchol.iimus, i.S.j. 

 Oncinolabrs. 152. 



< )nisc-ida-, 362. 

 ( )ni-rn < ;, : 



( Inuphis, 22O. 



>0 5- 



