INDEX 



457 



NEP 



Neotanais, 324; serratispinosus, 



327 ; Isevispinosns, 328 

 Nephrops, norwegicus, Thomsoni, 



202 

 Nephropsidse defined, 201 

 Nephropsis, atlantica, Stewarti, 



206 

 Nerocila, depressa, 351 ; Lov6ni, 



munda, serra, 352 

 Nervous system, 2, 48 ; in Cyclo- 



metopa, 55 ; in Oxyrrhyncha, 



104 ; in Cumacea, 300 

 Nessea preoccupied, 361 

 Nika, Couchii, edulis, processa, 229 

 Nikidse defined, 229 

 Nikoides Danae, 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 Porcvpine, &c., 326 

 Nothocaris, 238 

 Notophryxus.ciypeatus, globularis, 



lateralis, ovoides, 400 

 Notopoides latus, 143 

 Notopus dorsipes, 143 

 Notostomus, 245 ; perlatus, 246 

 'Novara,' the, Crustacea of, 77 

 Nyctiphanes, australis, Couchii, 



norvegioa, 263 



Occiput, in Oniscoidea, 435 

 Ocypode, 85 ; arenaria, ceratoph- 

 thalmus, rhombea, 86 ; Fritz 

 Miiller's discu-sion 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 Maogillivrayi, 92 

 Oniscidse deftned, 425 

 Oniscoidea defined, 420 

 Oniscus, the original genus, 318 ; 



paradoxus, 357 ; asellus, fossor, 

 murarius, punctatus, Simonii, 

 430 



Onychophura, a small class of Ar- 

 thropods, 3 



Oodeopidee defined, 262 



Oodeopus, 252 ; origin of the name, 

 253 



Opercula'a, order or suborder of 

 Cirripedes, 11 



Ophthalmic segment, 34 



Oplophorus typus, armature of, 

 244 



Oppian, on Pinnotheres, 100; his 

 ignorance of Squillidse, 282 



Orbits, 61 



Orohestia, littoral species of, 16 



Orchestidse, short first antennse of 

 the Amphipod family, 36 



Oreophorus, 130 



Orithyia, bimaculatus, mammil- 

 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 



Ourachaerus caudatus, 432 



Ourozeuktes, caudatus, mona- 

 canthi, Owenii, 355 



Ova, of Corystes cassivel annus, 74 ; 

 of Eupagurus, 164 ; of Munidop- 

 sis, 177 ; of Caridea, 224 ; of 

 Schizopoda, 256 ; of Squillidae, 

 288 



Ovaries, of the Stomatopoda, 279 ; 

 of the Cymothoidse, 350 ; of the 

 Entoniscidffi, 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 Pinnotheresaud, 100 



Ozius, ridges on endostcme of, 62 ; 

 Edwardsi, 63 



