368 



SUBJECTS INDEX. 



Nuchal gland (Crust.), 



151. 

 Nyctiplianes, 253, 255. 



0. 



Obolus, 77. 



— laLiadoriea, 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. 



Palaemon, 104, 110, 115, 



118, 131, 174, 273. 

 — • Potuini, 274. 



— seiTatus, 179. 

 Palaenionetes, 110. 

 — • varians, 274. 



— vi;lgaris, 274. 

 Palaenionidae, 271. 

 Palaeocaris, 319. 

 Palaeostraca, 315, 332- 



363. 

 Palinurus, 151, 278. 



— - quadiicornis, 279. 

 Paludicella, 12. 



— Ehrenbergii, 48. 

 Pandalus, 151. 

 Pantopoda, 315. 

 Paracopnlation, 119. 

 Paradoxides, 338. 

 Paragnatha, 148. 

 Parapodopsis, 168. 



— cornuta, 117. 

 Parasita, 104, 237. 

 Parastacidae, 277. 

 Paribacus, 283. 

 Paterina labradorica, 75. 

 Pectinatella, 12. 

 Pectinella, 41. 

 Pedicellina, 91. 



— echinata, 92, 98. 

 Pedicellino])sis, 91. 

 Pcnaeidca, 249, 257, 267. 

 Penaeus, 114, 152, 194, 



248, 267, 273, 310. 



Peripatus, 167, 179, 314, 



355, 360. 

 Peteinuia gubernata, 



271. 

 Petraica batliyactidis, 



228. 

 Phacops, 339. 

 Pherusa, 12. 



— tubulosa, 24. 

 Philictliyidae, 237. 

 Plioronidea, 1. 

 Phoronis, 1-11, 84-89. 



— psanimophila, 10. 



— australis, 82. 

 Phroniiiia, 309. 

 Phylactolaemata, 12. 



— larva, 32. 

 Phyllopoda, 104, 123, 



196. 

 Phyllosoma, 278-284. 



— Duperryi, 283. 

 Pinnixa, 296. 

 Platessa flesus, 240. 

 Platy.saccus crenatus, 



266. 

 Pleopoda, 106. 

 Pleurobrancliiae, 173. 

 Plumatella, 12. 



— fruticosa, 35. 



— finigosa, 33, 38. 



— polymorpha, 33. 

 Podobranchiae, 173. 

 Podoplithalmata, 104. 

 Polyjthenuis, 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. 

 Portnnus, 118, 296. 

 Praniza, 151, 305. 

 Prestwicbia, 348. 

 Proboscidella, 76. 

 Produetidae, 76. 

 Proetus, 338. 

 Protegulum, 75. 

 Protoi)odite, 193. 

 Protostraca, 314, 333. 

 Prototreniata, 77. 

 Protozoaea stage, 119, 



249. 

 Pseudericbtlius, 300. 

 Pseudodeltidiuni, 77. 

 Pseudosquilla, 300. 

 Pterygotus, 332. 

 Pterygura, 290. 



Ptychoparia Linnarssoni, 



337. 

 Pygidium, 333. 

 Pyriform organ (Bryo. 



Ect.), 18. 



R. 



Radicellata, 12. 

 Ranininea, 290. 

 Ratbke's pyramids, 109, 



128. 

 Regeneration (Bryozoa 



Ect.), 55. 

 Retepora, 12. 

 Retinogen, 170. 

 Rhabdopleura, 5, 88. 

 Rhabdosoma, 309. 

 Rbizocepbala, 105, 221. 

 Rhyncbonella, 82. 

 Rhynclionellidae, 77. 



S. 



Sabinea, 274. 

 Sacculina, 112. 



— carcini, 221-228. 

 Sagitta, 66. 



Sao liirsuta, 334-337. 



Sapphirina, 237. 



ScalpeHum (balanoides, 

 ornatum, Peronii, re- 

 gium, rostratum, vill- 

 osum, vulgare), 230. 



— Stromii, 220. 

 Scaphognatliite, 151. 

 Sceletina armata, 257. 

 Scbizocrania, 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. 

 Spliaeronella 



Leuckhartii, 241. 

 Spliaerothylaous poly- 



carpae, 209. 



