INDEX 



457 



NEP 



Neotanais, 324 ; serratispinosus, 



327 ; lasvispinosus, 328 

 Nephrops, norwegicus, Thomson!, 



202 



Nephropsidas defined, 201 

 Nephropsis, atlautica, Stewarti, 



206 

 Nerocila, depressa, 351 ; Loveni, 



munda, serra, 352 

 Nervous system, 2, 48 ; in Cyclo- 



metopa, 55 ; in Oxyrrhyncha, 



104 ; in Cumacea, 300 

 Nestea preoccupied, 361 

 Nika, Couchii, edulis, processa, 229 

 Nikidas defined, 229 

 Nikoides Dante, 230 

 Norman, Canon, on distribution, 



66 ; on Axius stirynchus, 187 ; 



on Mysidse, 271 ; on male Ta- 



naids, 327 

 Norman and Stebbing, on Isopoda 



of the Porcupine, &c., 326 

 Notbocaris, 238 

 Notophryxus,clypeatus,globularis, 



lateralis, ovoides, 400 

 Notopoides latus, 143 

 Notopus dorsipes, 143 

 Notostomus, 245 ; perlatus, 246 

 ' Novara,' the, Crustacea of, 77 

 Nyctiphaues. australis, Couchii, 



norvegica, 263 



OCCIPUT, in Oniscoidea, 435 

 Ocypode, 85 ; arenaria, ceratoph- 

 thalmus, rhombea, 86 ; Fritz 

 Miiller's discussion of, 87 

 Ocypodidae defined, 85 

 Ocypodiidea, alias Catometopa, 53 

 Oeidia, synonym of Gomeza, 76 

 (Ethra, 154 



Olaus Magnus, pictures from, 25 

 Old Man's Face Crab, 75 

 Olencira prasgustator, 353 

 Oligoniscus monocellatus, 422 

 Olivi, pile of crabs described by, 



111 



Ommatocarcinus Macgillivrayi, 92 

 Oniscidfe defined, 425 

 Oniscoidea defined, 420 

 Oniscus, the original genus, 318 ; 



OZI 



paradoxus, 357 ; asellus, fossor, 

 murarius, punctatus, Simonii, 

 430 



Onychophora, a small class of Ar- 

 thropods, 3 



Oodeopidas defined, 252 



Oodeopus, 252; origin of the name, 

 253 



Operculata, order or suborder of 

 Cirripedes, 11 



Ophthalmic segment, 34 



Oplophorus typus, armature of, 

 244 



Oppian, on Pinnotheres, 100; his 

 ignorance of Squillidas, 282 



Orbits, 51 



Orchestia, littoral species of, 16 



Orchestidas, short first antennas of 

 the Amphipod family, 36 



Oreophorus, 130 



Orithyia, bimaculatus, rnammil- 

 laris, 125 



Orphania tenuimana, 252 



Osachila, 127 



Ostracoda. order of Entomostraca, 

 9 ; subdivision of, 10 ; a giant 

 species of, 31 



Ostraconotus, 166 



Otoliths, 36, 37, 182, 196 



Ourachasrus caudatus, 432 



Ourozeuktes, caudatus, mona- 

 canthi, Owenii, 355 



Ova, of Corystes cassivelaunus, 74 ; 

 of Eupagurus, 164 ; of Munidop- 

 sis, 177 ; of Caridea, 224 ; of 

 Schizopoda, 256 ; of Squillidas, 

 288 



Ovaries, of the Stomatopoda, 279 ; 

 of the Cymothoidaa, 350 ; of the 

 Entoniscidaa, 405 ; of Ergyne 

 cervicornis, 414 



Oxyrrhyncha defined, 104 ; spell- 

 ing of the name, 105 ; manners 

 of, 112; lead among Crustacea 

 taken by, 118 

 Oxystomata defined, 123 



Oyster Crab, the, 101 



Oysters, eaten by the Shore Crab, 

 66; story of Pinnotheres and, 100 

 Ozius, ridges on endostorne of, 62 ; 

 Edwardsi, 63 



