368 



SUBJECTS INDEX. 



Nuchal gland (Crust.), 



151. 

 Nyctiphanes, 253, 255. 



Obohis, 77. 



— labradorica, 75. 

 Oeypoda, 296. 

 Og'ygia, 338. 

 Olenellus asaphoides, 



336-338. 

 Oniscns, 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. 

 Palaemon idae, 271. 

 Palaeocaris, 319. 

 Palaeostraca, 315, 332- 



363. 

 Palimmis, 151, 278. 



— quadricornis, 279. 

 Paludicella, 12. 



— Ehrenbergii, 48. 

 Pandalus, 151. 

 Pantopoda, 315. 

 Paracopulation, 119. 

 Paradoxides, 338. 

 Paragnatha, 148. 

 I'.napodopsis, 168. 



— eornuta, 117. 

 Parasite, 104, 237. 

 Parastacidae, 277. 

 Paribacus, 283. 

 Paterina labradorica, 75. 

 Peotinatella, 12. 

 Pectinella, 41. 

 Pedicellina, 91. 



— echinata, 92, 98. 

 iVdin-llinopsis, 91. 



Penaeidoa, 249, 257,267. 



Peaaena, 114, 152, 194, 



248, 267, 273, 310. 



Peripatus, 167, 179, 314, 



355, 360. 

 Peteinura gubernata, 



271. 

 Petrarca bathyactidis, 



228. 

 Phacops, 339. 

 Pherusa, 12. 



— tubulosa, 24. 

 Philicthyidae, 237. 

 Phoronidea, 1. 

 Phoronis, 1-11, 84-89. 



— psammophila, 10. 



— australis, 82. 

 Phronima, 309. 

 Phylactolaemata, 12. 



— larva, 32. 

 Phyllopoda, 104, 123, 



196. 

 Phyllosoma, 278-284. 



— Duperryi, 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. 

 I'scuderichthus, 300. 

 Pseudodeltidium, 77. 

 Pseudosquilla, 300. 

 Pterygotus, 882. 

 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. 

 Rhizocephala, 105, 221. 

 Rhynchonella, 82. 

 Rhynchonellidae, 77. 



S. 



Sabinea, 274. 

 Sacculina, 112. 



— carcini, 221-228. 

 Sagitta, QQ. 



Sao hirsute, 334-337. 



Sapphirina, 237. 



Scalpellum (balanoides, 

 ornatum, Peronii, re- 

 gium, rostratum, vill- 

 osuni, vulgare), 230. 



— Stromii, 220. 

 Scaphognathite, 151. 

 Sceletina armata, 257. 

 Schizomania, 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. 

 Sphaerothylacus poly- 



oarpae, 209. 



