INDEX 



461 



PRO 



Prosthete cannelee, 416 



Protopodite, 36 



Protosquilla, elongata, Guerinii, 



287 ; larval form of, 290 

 Protozoa, 1 

 Protozoea, 217 

 Prudden, Mr. T. M., on Gelasimus 



minax, 91 

 Psalistoma, the ' cutting margin 



of the mandible,' 255 

 Pseudarmadillo carinulatus, 433 

 Pseuderichthus, larval form of 



Pseudosquilla, 290 

 Pseudibacus Veranyi, 194 

 Pseudione, callianassas, confusa, 



Dohrni, Fraissei, Hyndmanni, 



insignis, 411 

 Pseudocalanus elongatus, parasite 



on, 397 



Pseudocarcinus gigas, 26 

 Pseudocorystes, 74 ; armatus, 75 

 Pseudocuma, cercaria, ciliata, lon- 



gicornis, 307 



Pseudocumidas defined, 307 

 Pseudo-mandibles of Gnathia, 336 

 Pseudomma, 267 ; Sarsii, trunca- 



tum, 269 



Pseudomysis, 267 ; abyssi, 274 

 Pseudorhombila, 93 

 Pseudosiriella, 267 ; frontalis, 277 

 Pseudosquilla ciliata, 286 

 Pseudotanais, 323 

 Pseudozius, Mellissi, 62 ; Bouvieri, 



63 



Pterelas, 349 

 Pterygotus, a genus of the Mero- 



stomata, 26, 27 

 Pterygostomian regions, 52 

 Pterygura, 146 ; reason for dis- 

 carding the name, 147 

 Ptilanthura, 332 



Ptychogaster Milne-Edwardsi, 178 

 Pycnogonida, some peculiarities of 



the, 3, 4 



Pylocheles, Agassizii, spinosus, 169 

 Pylochelidfe, 169 ; a synonym of 



Parapaguridas, 170 

 Pyrgoniscus cinctutus, 434 



QUADEELLA, 65 



SAB 



RACHITIA spinalis, 253 



Kanina, scabra, 139 ; dentata, sea- 

 bra, serrala, 140, 141 



Raninidas, 140 



Ranininea defined, 139 



Raninoides personatus, 143 



Rathbun, Miss M., on Panopeus, 

 56 ; on the Periceridae, 120 



Rathke, H., on the cray-fish, 84, 

 207 



Rathke, J., Cymothoa lignorurnof, 

 367 



Reaumur, on exuviation, 207 



Red Crab of the devil, 154 



Regions of the carapace, 52 



Regulus preoccupied, 239 



Remipes, 151 ; adactylus, scutel- 

 latus, testudinarius, 152 



Respiration, see Branchiae and 

 Breathing apparatus 



Rhabdosoma armatum, a slender 

 species of Amphipoda Hype- 

 ridea, 30 



Rhinoceros-whale, the, 25 



Rhinoryctes mirabilis, 431 



Rhipidura, or tail-fan, 46, 146 



Rhizocephala, an order of Cirri- 

 pedes, 11 



Rhoda, inermis, Jardineana, Ras- 

 chii, 263 



Rhomaleocaris, 242 



Rhynchocinetes typus, 228 



Rhyscotus turgifrons, 429 



River Crabs, 76 



Robber Crab, 158 



Robertson, Mr. David, observa- 

 tions on Corystes cassivelaunus, 

 74 ; Cumacea found in the Clyde 

 by, 292 ; Leptaspidia brevipes 

 found by, 381 



Rocinela, 348, 352 ; danmoniensis, 

 signata, 349 ; foveolatus, 350 



Rondelet on Squilla mantis, 282 



Rumph, or Rumphius, story attri- 

 buted to, 142 ; his Cancer cani- 

 nus, 143 ; on the cocoanut 

 crab, 158 



SARINEA, 225 ; septemcarinata, 

 227 ; larval form of, 228 



