400 
Perenna, Guppy... II 
Perforatella, Schl. . 
Peribolus, Adanson. II 
Perideris, Shuttl. 
Peridolithus, Hupsch. 
Perieria, Tap.-Can. 
Peringia, Paladilhe. II 
Periploma, Schum. 
Periplomya, Conr. . 
Perisphinctes,Waag. II 
Perissodon, Conr. . 
Perissolax, Gabb. . II 
Perissoptera, Mate.) oc 
: II 
Peristera, Rafin. . II 
Peristernia, Mirch. II 
Peristerniine. . .. If 
Peristoma, Kryn. . III 
75 6c . Ill 
Perlamater, Schum. III 
Perna, Adanson. Ill 
Perna, Brug. . Itl 
Pernine. ‘ in UI 
Pernopecten,Win. . III 
Pernostrea, M.-Ch. III 
Peronvea, Poli? 2) o) cB 
Peronxoderma, Poli. III 
Peronzus, Albers.. III 
Peronia, Blainv. Iil 
Peronoceras, Hyatt. II 
Perringia, H. & A. Ad. II 
Perrisonota, Conr. III 
Perrona, Schum. ~._ II 
Persa, H.& A.Ad. III 
Persicula, Schum... II 
Persona, Montf. . II 
Personella, Conr. . © Il 
Petalichnus, Miller. III 
Petaloconchus, Lea. II 
Petasia, Beck. Til 
66 73 4 IIL 
Petasina, Morch. III 
Petelodoris, Bergh. II 
Petenia, Cr. & Fisch. 
Petitia, Chitty. 72 = ik 
Petreus, Albers. 
INDEX. 
PAGE 
291 | Petricola, Lam. . Tie 
.39 | Petricolaria, Stol. . III 
197 | Petricolide. . Iif 
60 | Pfaftia, Behn. DEL 
330 | Pfeifferia, Gray. . III 
73 | Phacellopleura, Guild. II 
266 | Phedra, Albers. . III 
145 | Phedusa,H. & A. Ad. III 
150 | Phalium, Link 2). Of 
81 | Phanerobranchiata. IIT 
159 | Phanerophthalmus,Ad.II 
140 | Phanerotinus, Sowb. II 
193 7 : II 
194)| ‘Phanetaj, H. Ad.) 2 TL 
178 | Phania, Albers. . iil 
132 | Pharella, Gray. . iil 
127 | Pharelline. TEE 
50 | Pharetra, Bolten. ith 
54 | Pharetrum, Konig. III 
21)| Pharus, each.).462 9? TEE 
262 | Phaselotus, Jeffreys. III 
277 | Phaseolicama, Val. III 
277 | Phasianella, Lamarck. II 
291 | Phasianellide. . . II 
278 | Phasianema, Wood. II 
169 | Phasis, Albers. . Iil 
168 | Phasmoconus, Morch. II 
51 | Phenacolimax, Stab. III 
92 | Phengus, Albers. lil 
76 | Pherusa, Jeffreys. . II 
314 | Phidania, Gray. . II 
249 | Philina, Albers. Iil 
184 | Philine, Ascanias.. II 
$6») $Pinthimidee. Fie ae 
173 | Philinopsis, Pease. II 
124°) Pbilipyia, Graves) ck 
124 | Philis, Fischer. . IEE 
348 | Philomycus, Rafinesq. III 
Oo: | Philonexides. “Sat ff salt 
24 | Philonexis, d’Orbigny. IT 
39 | Phe nicobius, Morch. III 
39 | Pholadacea. JEL 
371 | Pholadella, Hall. TEE 
15 Pholadide. Ill 
292 | Pholadidea, Turton. ag Git 
54  Pholadine. Tit 
