368 



SUBJECTS INDEX. 



Nuchal gland (Crust.), 



151. 

 Nyctiphanes, 253, 255. 



0. 



Obolus, 77. 



labradorica, 75. 

 Ocypoda, 296. 

 Ogygia, 338. 

 Olenellus asaphoides, 



336-338. 

 Oniscus, 104, 116, 118, 



140,151,159,160,177. 

 Oniscus, 173, 175. 



murarius, 140. 

 Ooecia, 13, 49. 

 Oostegites, 105. 

 Orbiculoidea, 75, 77. 

 Orchestia, 118, 140, 151, 



181. 



Orthis, 77. 

 Orthisina, 77. 

 Ostracoda, 104. 

 Ovicells, 13, 49. 



P. 



Palaemon, 104, 110, 115, 

 118, 131, 174, 273. 



Potuini, 274. 



serratus, 179. 

 Palaemonetes, 110. 



varians, 274. 



vulgaris, 274. 

 Palaemonidae, 271. 

 Palaeocaris, 319. 

 Palaeostraca, 315, 332- 



363. 

 Palinurus, 151, 278. 



quadricornis, 279. 

 Paludicella, 12. 



Ehrenbergii, 48. 

 Pandalus, 151. 

 Pantopoda, 315. 

 Paracopulation, 119. 

 Paradoxidcs, 338. 

 Paragnatha, 148. 

 Parapodopsis, 168. 



cornuta, 117. 

 Parasita, 104, 237. 

 Parastacidae, 277. 

 Paribacus, 283. 

 Pateriria labradorica, 75. 

 Pectinatella, 12. 

 Pectinella, 41. 

 Pedicellina, 91. 



echinata, 92, 98. 

 Pedicellinopsis, 91. 

 Penaeidca, 249, 257, 267. 

 Penaeus, 114, 152, 194, 



248, 267, 273, 310. 



Peripatus, 167, 179, 314, 



355, 360. 

 Peteinura gubernata, 



271. 

 Petrarca bathyactidis, 



228. 



Phacops, 339. 

 Plierusa, 12. 



tubulosa, 24. 

 Philicthyidae, 237. 

 Phoronidea, 1. 

 Phoronis, 1-11, 84-89. 



psammophila, 10. 



australis, 82. 

 Phroniina, 309. 

 Phylactolaemata, 12. 



larva, 32. 

 Phyllopoda, 104, 123, 



196. 

 Phyllosoraa, 278-284. 



D u perry i, 283. 

 Pinnixa, 296. 

 Platessa flesus, 240. 

 Platysaccus crenatus, 



266. 



Pleopoda, 106. 

 Pleurobranchiae, 173. 

 Plumatella, 12. 



fruticosa, 35. 



fungosa, 33, 38. 



polymorpha, 33. 

 Podobranchiae, 173. 

 Podophthalmata, 104. 

 Polyphemus, 111, 114. 

 Polypide, 15. 



(Bryo. Ect ), develop- 

 ment of, 37. 



Pontellidae, 232. 

 Pontophilus, 271, 273. 

 Porcellana longicornis, 



289. 



Porcellio, 114, 139, 175. 

 Portunion maenadis,307, 



308. 



Portunus, 118, 296. 

 Praniza, 151, 305. 

 Prestwichia, 348. 

 Proboscidella, 76. 

 Productidae, 76. 

 Proetus, 338. 

 Protegulum, 75. 

 Protopodite, 193. 

 Protostraca, 314, 333. 

 Prototremata, 77. 

 Protozoaea stage, 119, 



249. 



Pseuderichthus, 300. 

 Pseudodeltidium, 77. 

 Pseudosquilla, 300. 

 Pterygotus, 332. 

 Pterygura, 290. 



Ptychoparia Linnarssoni, 



337. 



Pygidium, 333. 

 Pyriform organ ( Bryo. 



Ect.), 18. 



R. 



Radicellata, 12. 

 Ranininea, 290. 

 Rathke's pyramids, 109, 



128. 

 Regeneration (Bryozoa 



Ect.), 55. 

 Retepora, 12. 

 Retinogen, 170. 

 Rhabdopleura, 5, 88. 

 Rhabdosoma, 309. 

 Rhizocepha]a, 105, 221. 

 Rhynchonella, 82. 

 Rhynchonellidae, 77. 



S. 



Sabinea, 274. 

 Sacculina, 112. 



carcini, 221-228. 

 Sagitta, 66. 



Sao hirsuta, 334-337. 



Sapphirina, 237. 



Scalpellum (balanoides, 

 ornatum, Peronii, re- 

 gium, rostratum, vill- 

 osum, vulgare), 230. 



Stromii, 220. 

 Scaphognathite, 151. 

 Sceletina armata, 257. 

 Schizocrania, 77. 

 Schizopoda, 104, 134, 



152, 247, 253. 

 Schizopoda - like stage, 



250. 



Schizoporella, 12. 

 Sciocaris telsonis, 266. 

 Sclerocrangon boreas, 



274. 

 Scorpio (compared with 



Limulus), 357-360. 

 Scrupocellaria, 12. 

 Scuta, 219. 

 Scyllarus, 278-284. 

 Sergestes, 249, 263. 

 Sergestidae, 257, 273. 

 Serialaria lendigera, 31. 

 Sida, 114. 

 Sididae, 205. 

 Siriella, 173. 

 Solaster, 228. 

 Sphaeronella 



Leuckhartii, 241. 

 Sphaerothylacus poly- 



carpae, 209. 



