400 



INDEX. 



Perenna, Guppy. . II 

 Perforatella, Schl. . Ill 

 Peribolus, Adansou. II 

 Pevideris, Shuttl. . Ill 

 Peridolithus, Hiipsch. Ill 

 Perieria, Tap.-Caii. Ill 

 Peringia, Paladilhe. 

 PeriploBia, Schura. 

 Periplomya, Conr. . 

 Perispliinctes,Waag 

 Perissodon, Conr. . 

 Perissolax, Gabb. . 

 Perissoptera, Tate. 



Peristera, Rafin. 

 Peristernia, Mcirch. 

 Peristerniinse. . , 

 Peristoma, Kryn. . 



II 

 III 

 III 

 II 

 III 

 II 

 II 

 II 

 II 

 II 

 II 

 III 

 III 

 III 

 III 

 III 



Perlamater, Schum 

 Perna, Adanson. 

 Penia, Brug. . . 



Periiinse Ill 



Pernopecten,Win. . Ill 

 Pernostrea, M.-Ch. Ill 

 Peronsea, Poll. . . Ill 

 Peronseoderma, Poli. Ill 

 Peronseus, Albers. . Ill 

 Peronia, Blainv. . Ill 

 Peronoceras, Hyatt. II 

 Perringia, H. & A. Ad. II 

 Perrisonota, Conr. Ill 

 Perrona, Schum. . 

 Persa, H. & A. Ad. 

 Persicula, Schum. . 

 Persona, Montf. 

 Personella, Conr. . 

 Petalichnus, Miller. 

 Petaloconchus, Lea 

 Petasia, Beck. . . 



Petasina, Morch. . 

 Petelodoris, Bergh. 

 Petenia, Cr. & Fisch. 

 Petitia, Chitty. . . 

 Petrseus, Albers. . 



II 

 III 



II 



II 



II 

 III 



II 

 III 

 III 

 III 



II 

 III 



II 

 III 



PAGE 



291 



39 



19t 



60 



330 



73 



266 



145 



150 



81 



159 



140 



193 



194 



178 



132 



127 



50 



54 



271 



262 



277 



277 



291 



278 



169 



168 



51 



92 



76 



314 



249 



184 



96 



173 



124 



124 



348 



227 



24 



39 



39 



371 



15 



292 



54 



Petricola, Lam. . . 



Ill 



174 



Petricolaria, Stol. . 



III 



174 



Petricolid^. . . . 



III 



174 



Pfaffla, Behn. . . 



III 



14 



Pfeifferia, Gray. 



III 



46 



Phacellopleura, Guile 



. II 



344 



Phaedra, Albers. 



III 



36 



Phajdusa, H. & A. Ad. Ill 



76 



Phalium, Link. . . 



II 



201 



Phaneroiiranchiata. 



III 



344 



Phanerophthalmus,Ad.II 



353 



Phanerotinus, Sowb. 



II 



218 



u a 



II 



220 



Phaneta, H. Ad. . 



II 



317 



Phania, Albers. . . 



III 



45 



Pharella, Gray. . . 



III 



131 



Pharelliaiffi. . . . 



III 



131 



Pharetra, Bolten. . 



III 



341 



Pharetrum, Konig. 



III 



114 



Pharus, Leach. . . 



III 



132 



Phaselotus, Jeffreys. 



III 



249 



Phaseolicama, Yal. 



III 



268 



Phasianella, Lamarck 



. II 



303 



Phasianelliclse. . . 



II 



302 



Phasianema, Wood. 



II 



245 



Phasis, Albers. . . 



III 



40 



Phasmoconus, Morch 



. II 



188 



Phenacolimax, Stab. 



III 



20 



Phengus, Albers. . 



III 



47 



Pherusa, Jeffreys. . 



II 



236 



Phidania, Gray. 



II 



385 



Philina, Albers. 



III 



45 



Philine, Ascanias. . 



II 



352 



Philinidae. . . . 



II 



352 



Philinopsis, Pease, 



II 



353 



Philippia, Gray. 



II 



217 



Philis, Fischer. . . 



III 



211 



Philomycus, Rafinesq.TlI 



83 



Philonexidse. . . 



II 



12 



Philonexis,d'Orbigny. II 



22 



Phoenicobius, Morch 



III- 



47 



Pholadacea. . . . 



III 



117 



Pholadella, Hall. . 



III 



251 



Pholadidae. . . . 



III 



124 



Pholadidea, Turton. 



III 



127 



Pholadinae. . . . 



III 



124 



