Pinna Brocchii d'Orbigny 
—  bullata Gmelin 
—  Chemnitzi Hanley 
__  cornuformis Chiereghini IT, 
—  elegans Leach 
—  fragilis Pennant 
— —  Turton 
—  gigas Chemnitz 
—  incurvata Born 
— ingens Pennant 
—  japonica Hanley 
— lævis Donovan 
—  marginata Lamarck 
—  mucronata Foli 
—  muricata auct. 
120, 121, 122, 124, 
—  nobilis auct. 
—  nobilis Linné 
—  obeliscus Chemnitz 
—  papyracea Turton 
—  pectinata Linné 
—  pernula Chemnitz 
—  Philippii Aradas 
Maravigna 
—  rotundata auct. 
Linné 
— : rudis auct. 
— 866 — 
IL, 131 
IL, 126 
II, 123 
126 
II, 119 
MES I 
II, 122 
II, 124,128 
130 
IL, 123,128 
IT, 118,119 
120, 122 
II, 123 
II, 118 
II, 126 
II, 121,127 
802 
II, 118,119 
128, 130 
IT, 125, 130 
131 
Il, 118 
II, 124, 125 
128, 129 
ZI, 119, 122 
11,118,128 
Il, 127, 128 
II, 121 
IT, 127 
II, 124, 125 
Il, 126 
II, 118,119 
120, 121, 122, 127 
Linné 
—  squamosa Gmelin 
—  truncata Philippi 
—  vitrea Gmelin 
Pinninæ P. Fischer 
Pinon de Gregorio 
Pirenella Gray 
Pisania Bivona 
— lævigata Bivona 
—  maculosa Lamarck 
—  nodulosa Bivona 
—  Orbignyi Payraudeau 
—  striata Gmelin 
-— striatula Bivona 
—  syracusana Gmelin 
Pisinna Monterosato 
—  punctulum Philippi 
Pitar Adanson 
Placunanomia Broderip 
= Cumingi 
Planaxis Lamarck 
— Risso 
— Beudantiana Risso 
—- Desmarestiana Risso 
Hi 118 121 
II, 124, 125 
126, 128, 129 
IL, 119, 120 
121, 122 
II, 126 
II, 114 
II, 765 
II, 795 
I, 25 
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Planaxis Fischeliana Risso 
— lineolata Risso 
— mamillata Risso 
- olivacea Risso 
— reticulata Linné 
— riparia Risso 
Planimodiola Cossmann 
Pleurobranchæa Meckeli Leach 
Pleurobranchidæ Gray 
Pleurobranchus Cuvier 
—  aurantiacus Risso 
—  Contarinii Vérany 
—  Denotarisi Vérany 
—  membranaceus Mont. 
—  ocellatus Delle Chiaje 
—  perforatus Philippi 
—  Peroni Cuvier 
—  Savii Vérany 
—  stellatus Risso 
—  tuberculatus Delle 
Chiaje 
Pleuronectia hyalina Poli 
Pleurotoma Lamarck 
== ægeensis Forbes 
— albida Deshayes 
— amœæna Sars 
== anceps Eichiwald 
— attenuata Montagu 
— Bertrandi Philippi 
— bicolor Risso 
— Bivonæ Maravigna 
— boreale Lovén 
— cærulans Philippi 
— 
OÙ Or Où Qt Où À 
D © © = à ©t 
IT, 163 
IT, 801 
1,531,553 
1, 551 
IT, 800 
II, 800 
II, 800 
I. 551 
Il, 800 
II, 800 
II, 800 
II, 800 
II, 800 
II, 800 
II, 800 
1I, 97 
I, 86 
TN 
I, 106, 107 
— Comarmondi Michaud I. 88 
— concinna Scacchi 
— corbis Michaud 
— Cordieri Payraudeau 
—— crassilabrum Réquien 
— crispata Jan 
— Cyrilli Payraudeau 
— decussata Philippi 
— eburnea Bivona 
— echinata Calcara 
— elegans Blainville 
— emendata Monteros. 
— formicaria Forbes 
-— fuscata Deshayes 
—— fusiformis Réquien 
_ Ginnania Risso 
— Ginnanianum Scacchi 
— gracile Montagu 
— gracilis Scacchi 
— heptagona Scacchi 
I, 98 
1, 91 
I, 92 
I1, 767 
I, 106 
I, 86 
I, 68 
I, 102 
I, 104 
I, 94 
I, 109 
II, 792 
I, 100 
I, 100, 102 
1.8 
I, 99 
I, 100 
I, 88. 95 
I, 101 
I, 110 
— inflata de Cristofori et 
Jan 
Philippi 
Qt © 
I, 9 
I, 9 
