Vyctalemon excavatus, x. 528. 
hector, x. 526. 
longicaudus, x. 526, 
meneetius, x. 526. 
metaurus, x. 524, 525. 
—— najabula, x. 526. 
orontiaria, x. 524. 
patroclus, x. 526. 
—— zampa, x. 526. 
zodaica, x. 524. 
Nyctalops stygius, iv. 233. 
Nyctea cinerea, iv. 214. 
erminea, iv. 214. 
nivea, iv. 214. 
Nycteribia, observations on the genus, i. 275-294. 
—— biarticulata, i. 292, 294. 
—— blainvillit, i. 277, 278, 285, 288, 289, 294. 
dubia, i. 289. 
—— dufourii, i. 290, 291, 294. 
hermanni, i. 277, 284, 287. 
—— hopei, i. 289, 293. 
—— jenynsii, i. 291, 294. 
—— latreillii, i. 276, 277, 284, 286, 291, 294, 
pedicularia, i. 290. 
—— roylii, i. 290, 294. 
—— sykesit, i. 288, 293. 
vespertilionis, 1. 278, 284, 290. 
vecata, i, 291. 
Nycticebus tardigradus, vii. 6-88. 
Nycticoraw, osteology of, compared in various points 
with that of the Kagu, vi. 503, 509-511. 
—— ardeola, vy. 216. 
—— caledonicus, viii. 100, 114; ix. 238. 
—— crassirostris, ix. 238. 
—— goisagi, ix. 239, 
griseus, vill. 100 ; iv. 338; ix. 238, 252, 
limnophilax, ix. 238, 239, 240. 
manillensis, vii. 100; ix. 238, 252. 
pauper, ix. 464, 467, 469, 498, 
violaceus, ix. 498. 
Nyctipethes perlatus, iv. 205, 
Nyetipithecus trwirgatus, v.109, 111, 
Nyctobates brevicornis, tii. 226, 
confusus, iti, 221, 224, 
— — hypocrita, iii. 225. 
levigatus, tii, 223, 
meerens, iii, 222, 
66 
Nyetobates punctatus, ili, 224. 
rotundicollis, ii. 226. 
transversalis, iii. 225. 
Oblada melanura, ii, 178, 200. 
Octodon, on the genus, and its relations with Cteno- 
mys and Poephagomys, ii. 75-86. 
cumingii, li. 75, 81, 84, 85. 
Octopus aculeatus, ii. 106. 
catenulatus, li. 112. 
—— hyalinus, ii. 111. 
semipalmatus, 11. 112, 130, 
vulgaris, ii. 112, 130. 
Ocydromus australis, y.161, 184, 211; vi. 518; viii. 
119, 120, 124-126; ix. 322; x. 302. 
Ocythoé cranchii, ii. 103, 112, 114, 117. 
Ocyton tyrrhus, ix. 632. 
Odax algensis, iii. 72, 148. 
balteatus, iil. 72. 
semifasciatus, i. 148. 
Odontaspis litoralis, x. 467. 
Odontoceti, vi. 111, 115, 360. 
Odontophore in certain mollusca, mechanism of the, 
x. 485-491, 
Odontopus costatus, iii, 218. 
tristis, iii. 218. 
violaceus, iii. 218. 
Odynerus punctum, vil. 167. 
Gdienemus, vi. 74, 76-78, 503. 
affinis, vil. 294, 
—— crepitans, iv. 285; vi. 79; vii. 294, 
— grallarius, viii. 91. 
magnirostris, viii. 91; ix, 227. 
| Ena capensis, vii. 290. 
CEnosanda chinensis, ix. 602. 
noctuiformis, ix. 602. 
spuria, ix. 633, 
Estrelata hesitata, ix. 508. 
pheopygia, ix. 464, 507, 510. 
Ogcoosoma granularis, iil. 228. 
Oiceoptoma tetraspilotum, i. 93. 
Oligocercus rufescens, vii. 230, 
Oligoplites inornatus, vi. 383, 433. 
Onocrotalus philippinensis, ix. 246. 
Onychoprion anesthetus, vili. 104; ix, 244, 252. 
melanauchen, viii. 104. 
Oopholis pondicherianus, yi. 139. 
porosus, vi. 128, 138, 
