68 



Ostracion auritus, iii. 160. 



bicauclalis, vi. 396. 



cornuhis, vi. 396. 



jlavigaster, iii. 164. 



lenticularis, iii. 158, 159. 



ornatus, iii. 165. 



spilogaster, iii. 163. 



Ostracoda of the Antwerp Crag, a monograph of the, 

 X. 379-410. 



, on new or imperfectly known species of marine, 



V. 359-393. 

 Ostrich, on the axial skeleton of the, viii. 385-451. 



, skull of, X. 303. 



, African, vi. 517. 



Otariajubata, descriptive anatomy of, vii. 527-596 ; 



viii. 501-582. 

 Othonia quinquedentata, ii. 57, 65. 



sexdentata, ii. 56, 65. 



Othria angias, x. 516. 



Oti$ arabs, .vii. 294 ; is. 225, 226. 



galapagoeiisis, ix. 493. 



l-ori, ix. 225, 226. 



lufoniensis, ix. 225. 



melanogaster, vii. 328. 



nigricejps, ix. 226. 



philijypensis, ix. 144. 



sccretarius, ix. 141. 



tarda, iv. 285. 



OtoUcnns alUni, v. 76. 



crassicaudatus, v. 76, 83, 100. 



Otoliihus albus, yi. 387, 429. 



reticulatiis, vi. 387, 430. 



squamipinnis, vi. 387, 429. 



Ohts africamis, iv. 240. 



ameHcanus, iv. 233. 



asculaplius, iv. 239. 



bengalensis, iv. 239. 



brachyotus, iv. 236 ; vii. 211. 



capensis, iv. 237. 



chcerilus, ix. 545. 



cnotus, ix. 546. 



grammicus, iv. 231. 



macrurus, iv. 233. 



maculosus, iv. 240. 



madagascariensis, iv. 235. 



magicus, viii. 39. 



mantis, iv. 230. 



Otus mexicanus, iv. 235. 



myron, ix. 546, 631. 



— — ■ pholus, ix. 546. 



semitorques, iv. 230. 



. siguapa, iv. 233. 



stygius, iv. 233. 



syriams, ix. 545. 



ulula, iv. 236. 



versicolor, i.x. 546. 



vxdgaris, iv. 207, 214, 219, 232. 



wilsonii, iv. 233. 



zonurus, iv. 234. 



Oulodon grayi, x. 417. 



Ourax erytlirorhynchus, ix. 283. 



galeala, ix. 285. 



mitu, ix. 283. 



pauoci, ix. 283, ix. 285. 



tomentosa, ix. 284. 



Ovibos moschatiis, x. 131. 



Ovis tragelapJius, iii. 64, 66. 



Ox-eye Tit, skull of, x. 279. 



Oxycerca jagori, is. 208, 251. 



Oxylophus afer, vii. 285. 



jacobinus, vii. 286. 



Pachycepliala fusca, ix. 338, 352; x. 311. 



Paehygonia abboti, ix. 534. 



boisdiivalii, ix. 633. 



caUgirwsa, ix. 533, 635. 



coffcece, ix. 533, 534. 



Iwpfferi, ix. 635. 



magna, ix. 534. 



subhamata, ix. 533. 



Pachylia acliemenides, ix. 627. 



cequivalens, ix. 622. 



fims, ix. 578. 



inconspicua, ix. 579. 



inornata, ix. 578. 



Tcadeni, ix. 622. 



molucca, ix. 578. 



resumens, ix. 579. 



syces, ix. 578. 



undatifascia, ix. 578. 



venezuelensis, ix. 578. 



Pachyrhamphus sp., x. 311. 



sp., skull of, X. 310. 



Padda oryzivora, viii. 72 ; ix. 207, 251. 

 Pagellus acarne, ii. 177, 200. 



