201 
Page 
Placuna papyracea, Lam. 12 
— placenta, Linné... 11, 12 
_ sellassGmelon esa s.. 12 
Placunema see Placuna. 
Plicatula aculeata, Sow....... 57 
_— Australis, Krauss ... 57 
— _ Teams asa 57 
— Barbadensis, (Petiv.) 
GiOrby state cn 56 
= Ceylanica, Sow.... 57 
— chinensis, Morch 56 
a= cristata, Lam. ... 5 
— depressa, Lam...... 5 
= Essingtonensis, Sow. 5 
= gibbosa, (Lam.) Sow. 56 
a horrida, Dunk..o... 57 
_- imbricata, Menke . 56 
— marginata, Say..... 56 
— multiplicata, Desh... 5 
— Novae Zelandiae, Sow. 5 
= Philippinarum, Hanl. 5 
— plicata, Ch. .. 56 
— ramosa, Lam. 56 
— reniformis, Lam. ... 56 
— spondyloidea,Meusch. 56 
Poromya pulchella, Ad. & Reeve 127 
Portlandia see Leda ......... 9 
Protapes see Tapes. 
Protobranchiata ............. 7 
PSQTIITIO DL. AP er eee ea eee ee 109 
= amethystus, Reeve 115 
anomala, Desh. 115, 116 
_— compta, Desh. .... 115 
= corrugata, Desh. .. 114 
= maculosa, Lam.... 114 
— marmorea, Desh. 115 
— micans, Hanl.. . 109 
— orbicularis, Desh. 116° 
-- ornata, Desh. 114 
puella, Desh. ..... 115 
— radiata, Dunk. .... 115 
— rubicunda, Desh... 114 
= rugosa, Lam. ..... 113 
— scabragG@h.)....... 114 
= simplex, Sow...... 116 
— striata, Desh...... 115 
Tellinaeformis, 
Desh. 
tenuis, Desh. . . 
— zonalis, Lam,..... 115 
Psammobildae sane 3 113 
Psammocola rugosa, Lam..... 114 
D. K. D. Vidensk. Selsk. Skr., 7. Rickke, 
a 
i Bit il | 
var. occa, 
Page 
Psammotaea radiata, Desh.... 117 
— serotina, Lam. .. 137 
— violacea, Lam. .. 117 
— zonalis, Lam. ... 115 
Psephis delecta, A. Ad. . 68 
| Pteria aerata, Reeve ......... 47 
| — amomioides, Reeve ..... 47 
| — badia, Dunk......... 47 
| — citrina, Dunk... 48 
"ye fimbriata, Reeve..... 47 
— flabellum, Reeve... ef 
fucatay Gould/ja.8 46, 47 
— imbricata, Reeve.... 47 
| — irradians, Reeve. 47 | 
— lacunata, Reeve ....... 47 
lata, mRIGGVelmiis= esses 45 
— lentiginosa, Reeve ...... 47 
— Martensi, Dunk......... 47 
— muricata, Reeve. .\....... 47 
— nebulosa, Conr. ...... 47 
| — nigra, Gould ...... . 48 
{= OCCA IN CCV. rertege . 47, 48 
— perviridis, Reeve ... 47 
— placunoides, Reeve ..... 47 
— pulchella, Reeve...... 46 
serrulata, Dunk...... 45 
— spectrum, Reeve... 45 
= tristis, Dunk. 2. ...: 48 
| Waria,) Dunks 2s .47 47 
| — vulgaris, Schum........ 46 
| 
| Reeve 47, 48 
eas zebra, Reeve 46 
| Ptertidae... 45 
Pullastra see Tapes 143 
Pythina Deshayesiana, Hinds. 83 
- paula, A. Ad. ..... 86 
ae peculiaris, A. Ad. 86 
— triangularis, A. Ad 87 
Quadrans see Tellina. 
| Radula see Lima. 
| Raéta anatinoides, Reeve ..... 128 
bracheon, Sturany .. 128 | 
—  pellicula, Desh. . . 128 
—  pulchella, Ad. & Reeve . 127 
— rostralis, Desh. . . 128 
Rocellaria gigantea, Desh. 184 
_Ruditapes see Tapes. | 
5 | Rupellaria macrophylla, Desh. 156 
Sanguinolaria dichotoma,Anton 114 
= iridescens, Bens. 106 
rugosa, Lam. 113 
naturvidensk. of mathem. Afd. V. 8. 
I Page 
| Scapharca see Arca. 
| Scintilla Alberti, E. A. Sm. 90 
anomala, Desh. : 89 
-—— aurantia, Lam..... 90, 91 
-- candida, Desh. .. 90 
— hyalina, Desh. 89 
— hydatina, Desh. ..... 90 
_— Philippinensis, Desh.. 90 
Scissula see Tellina.......... 108 
| Scrobiculariidae............ 117 
| Scutus(?) abnormis, G.& H.Nevill 187 
Semele amabilis, A. Ad... italy) 
-- casta, A. Ad.. lis 
-—— exarata, Ad. & Reeve. 118 
=i) wWukest) A; Ad..; 118 
Septibranchiata.......... 192 
Seplifer bilocularis, Linné 39 
— excisus, Wiegm. 40 
— fuscus, Récl. . 40 
| ~— siamensis, Cless.... 40 
—— Troscheli, Dunk. .. . 40 
Serrula see Donax .. 119; 120 
Siliqua minima, Gm.. . 182 
— radiata, Linné........ 181 
— Spengleri, Ch......... 50 
subelliptica, Dunk..... 179 
— Winteriana, Dunk..... 182 
| Solecurtus abbreviatus, Gould 183 
-- albus, Quoy & Gaim. 182 
—_ antiquatus, Pult. . 184 
- coarctatus, Gm... 183, 184 
— emarginatus, Spengl. 183 
— oblongus, Dunk. .... 183 
a Philippinarum, Dunk. 183 
- Quoyi, Desh...... . 182 
| rhombus, Spengl. 182 
—— Scheepmakeri, Dunk. 
| 183, 184 
- solidus, Sow.. . 183 
| Solen abbreviatus, Phil. ATS. 
| albida, Ad. & Reeve Else 
— anatinus, Linné. . 184, 191 
| —  angustior constrictus etc., 
Ch. . 183 
— antiquatus, Pult. . 183 
| — brevis, Reeve 178 
| = Ceylonensis, Leach 178 
| —  coarctatus, Gm. 183 
— constrictus, Ch. 184 
— corneus, Lam. . 178 
cultellus, Linné 180 
— curtus, Desm. 178 
38 
