= 
Odostomia vitrea Brusina 11, 795 
—  Warreni Forbes et Hanl, 11, 794 
Odostomide de Folin 1, 157 
Oleacina truncata Bruguière 1, 529 
Olivia Bertholoni 1, 415 
— Cantraine I, 417 
—  Otaviana Cantraine I, 417 
Omala Schumacher 11, 660 
—  inæquivalvis Schumach. 11, 664 
Omalogyra P. Fischer : 1, 324 
Ombrella mediterranea Lamarck 1, 554 
Omplaloclathrum Klein 11, 363, 376 
Ondina de Folin 11, 767 
Onoba A. et H. Adams JT, 282 
Opalia Adams I], 771 
Opereulatum Linné 1, 553 
— læve Linné 11553 
Opisthokranchiata 1, 509 
Ortygia Brown 1], 355 
—  costata Brown II, 355 
—  gallina Linné 11, 356 
—  rugosa Brown 11, 356 
—  subcordata Brown 11, 356 
—  sulcata Brown II, 356 
Oscanius Leach I, 551 
— argentatus Leach 1, 551 
— membranaceus Montagu I, 551.552 
Osilin Adanson I, 401, 403 
Osilinus Philippi I, 401 
Osteodesma Deshayes 11,4729, 780 
— corbuloides Lamarck 115730, 731 
—  coruscans Ncacchi I], 731, 133 
— inflatum Danilo et Sand, 11, 733 
Osteodesmidæe Desbayes 11,735 
Ostracea Lamarck OR 
Ostrea Linné N°22 
—  aculeata Gmelin I], 101 
—  adriatica Lamarck 11, 4, 15 
—  angulata Lamarck II, 14 
—  bicolor Hanley Nat 
—  Boblayi Deshayes II. 14 
—  citrina Poli II, 80 
— clavata Poli 11, 68 
—  cochlear Poli TAMLT 
—  cornucopiæ Philippi LR 
—  crista-galli Aradas IT,,21 
—. :cristata auct. II. 4,8,9, 13 
— — Hidalgo II, 20 
—  curvata Risso II, 19,20 
—  Cyrnusi Granger OST 
— —  Payraudeau II, 4,13, 14 
—  deformis Lamarck RÉPANT7; 18 
—  depressa Philippi IT, 4,16 
—  dubia Gmelin II, 73 
— edulis Linné IL 2 
—  elegans Gmelin II, 73 
—  fasciata auct, II, 53 
== —  Linné NI 5b 
—  flammea Gmelin II. 101 
Ostrea flexuosa Poli 
fucorum Lamarck 
glabra Linné 
—  Montagu 
glacialis Poli 
hians Gmelin 
hippopus Lamarck 
hyalina Poli 
incarnata Gmelin 
inflexa Poli 
jacobæa Linné 
lamellosa Brocchi 
— Fontannes 
— Reeve 
leonica Fréminville 
lima Linné 
lineata Da Costa 
maculata Born 
multistriata Poli 
muricata Gmelin 
mustellina Gmelin 
nebulosa Poli 
obesa Sowerby 
ochroleuca Gmelin 
opercularis Linné 
orientalis Chemnitz 
parasitica Chemnitz 
— Turton 
pauciplicata Deshayes 
perna Linné 
pes-lutræ Linné 
plica Linné 
— Poli 
plicata Chemnitz 
plicatuia Gmelin 
pseudo-edulis Deshayes 
punctata Gmelin 
pusio Linné 
radiata Gmelin 
radula Linné 
regia Gmelin 
rosacea Deshayes 
rostrata Grube 
—  Sandri 
ruscuriana Lamarck 
rustica Poli 
sanguinea Linné 
—— Poli 
saxosa Hidalgo 
senegalensis Gmelin 
sericea Solander 
spondyloides Beltrém. 
stentina Payraudeau 
subrufa Gmelin 
_ Pennant 
11, 91 
HITS 
11, 80 
11, 90 
11, 53, 55 
11, 56 
RANION IT 
12 
I1, 96 
11, 101 
LI, 68 
Il, 62,63 
II, 4, 10,11 
12, 13 
11, 6 
DLa7 
II, 8, 9 
11.60, 51,52 
11, 73 
11, 80 
11, 104 
11, 101 
11, 101 
11, 80 
11, 20,21 
1], 101 
11, 72, 73.75 
11, 19 
WALZ 
11, 93 
Il, 91,94 
LI, 19,20, 21 
23 
11, 19, 20, 21 
23 
IL 6 
11, 101 
11, 104, 106 
11, 73 
