INDEX 



615 



Podocidaris, 290 

 Podocyst, 258 

 Poliau vesicles, 416, 423 

 Poli/cera, IS 

 Polyphuoplwra, 2 

 Polytremaria, 6 ; shell, 59, 156 

 Pompliolyx solida, 160 

 Porcelainous layer of shell, 57 

 PmxeUanaster, 396 

 P&rcellanasteridce, 296 

 Pore rhombs (Cyst.), 384 

 Po-rocrinus, 31S 

 Poromya, 51 

 Poromyidce, -21 

 Postpalmars (Crin.), 371 

 Poteriocrimis, 304 

 Pourtalesia, 295 



,, Jeffr&ysi, 295 ; apical system, 



325 

 Pourtalesiidce, 295 

 Prseputium, 235 

 Prismatic layer of shell, 57 

 Prohoscidif&t'a holostomata, 6 



,, siplwnostiymatct, 6 



Promachocrinus, 313 

 Prmiewnenia, 3 



„ Sluiteri, 3 ; nervous system, 



132 ; sections, 42 



,, vagans, 184 



Prcmeomeniidce, 3 

 Proostracum, 68 

 Propodium, 106 



Prosobranchia, 4- ', giHs, 90 ; heart, 199 ; 

 prohosois, 179 ; sections, 110 ; snout, 

 section, 181 ; tentacles, 102 

 Prosoplax, 64 

 Prostata, 233 



Protobranchia, IJf ; gills, 92 

 Protocrimcs, 313 



„ oviforviis, 312 



Prunocystis^ 332 

 Prymnadetes, 293 

 Prymnodesmia, 293 

 Psmmnohia, 18 

 PsamTTuMidce, 18 

 Pseudarchaster, 296 

 Pseudoconch, 47 

 Pseudolamellibranchui, 15 

 Pseudmnelanidc&^ 6 

 Pseudomonocyclic Crinoids, 329 

 Psolus, 287 



„ ephippi/er, 287 

 Psychropotes, 285 



„ longicauda^ 285 



Psyclvropotidce, 285 

 Pteraster, 298 

 Pterasteridce, 298 

 Pterasterince, 503 

 Pterobranchicc, 12 

 Pterocera, 107 

 Pteropoda, 10 ; larva, 257 

 ,, gyinnosomata., 11 



tliecosomata, 11 



Pteroirachceidm, 6 

 Pterotrachea, 109 



,, auditory organ, 168 



,, (Firola) coronata, 7 



Ptychodera, B62 



,, aurantiaca, 585 



,, baJmmensis, 585 



„ ckwigera, 570 



,, erythrcea, 585 



,, mimita, 562; branchial region, 



section, 562 ; head region, 

 section, 666, 568 ; ccelom, 

 diagrams, 576 

 Pulmonata, 8, 32 ; eye, 170 ; radula, 183 ; 



renal ducts, diagram, 75 

 Pupa, 8 

 Pupidce, 8 

 Purpura, 101 

 Purpuridm, 6 

 Pygaster, 291 

 Pygurus, 293 

 Pyramiddlidce, 6 

 Pyriform vessel (Gastr.), 220 

 PyrulUj 44 



,, tuba, 73 

 Pythonaster, 298 



Eaohial teeth, 182 



RacM-glossa, 6 



Radial shields, 362 



Eadials, 318 



Radiolitidce, 18 



Eadula, 177, 180-183 



Eed-brown organ (Keber's organ), 215 



Regulares, S15 



Reptantia, 10 



Reguienia, 18 



Retaster, 298 



Rete mirabile (Hoi.), 452 



Retiocrinida^, 306 



Retiocrinus, 306 



Rhabdopleura, 600-602 



,, Normani, 601 ; section, 



602 

 Rhachiglossa, 6 

 Rhinophore, 48, 103 

 Rhipidocrinus, 306 

 Rhipidoglossa, 4 

 RhizocMlus, 183 

 Rhizocrinus, 311 



,, lofotensis, 335 ; axial canals, 



378 ; stone canal, 423 



,, Raivsoni, 335 



Rhodocrinidw, 306 

 Rhodocrinus, 306 

 Rhodope Veranii, 281 

 Rhopalodina, 287 



,, derivation of, 408 



Rimula, 43 

 Ringiculida^, 46 

 Rissoidce, 108 

 Rizzolia, 13 

 Rossia, 24 



