Räumliche Verbreitung. 499 
Zahlen und Vertheilung der Arten 
Fossile Arten Lebende Arten 
östlicher Ozean | westlicher Ozean 
| BB! use 
S, 2 | tropisch a|.  |trop 
a al ler le as 2 2 
e N 5 g: 5 u Ka Per oO | 
Familien und Sippen BIıdıı RES ZN NG | nlelalen 4 |=2 
ehe l&|I82|o lol»! ._| | |Eis|sa,i> Fiese 
> el el Ss |a I l,n| Es la Slelsl m | 14] 
Bis El = Ele ee z.je65l>|l2| 5 tele 
z 2 = I 5 | BB |=]% = S|= B lels 
sieIis|2j8|j=ele |. | 2er 8 Sursee |ldle 
B © | F|& Sal; B jelslel = leslel®l 3 19,8 
& E a le 
IB: B I | jelejP rl ® 
1 2 3 & || 25 6 7 8!9 |10|11j12| 13 | 14 1516| 17 18/19 
Mytilomeria . 
13. Dreissensiana. 
Dreissonsia orm.. auhel re einen (d) 
Sephienie- I 2. Au 0 0 u. 
Myalna 2... 8 0.00 ame 
14. Modiolarcana. 
Modiolarea Es. nee 
B) Heteromya Sippen 
incl. Müleriacenf Arten 395 
0 
0 | 
12. Mytilana. | | | 
Mytilus.. sen. ae 100 ems| 5 | 20 | 50 | 25 Ba — d— 2/41 
Modioldpsisnn-. -... 0 a. men ie l5jlemu 9) 6|— | — 0 — | — |—— = — I || —- — 
Modislauk z.4m.d. Suarın 150ems 00 oo | oa 7 | 5/56 
MyEmam u. Se 1-1-|1-| ee 1—-|- |-/-|-| 1] - | —| — | 
Grenellay ein a eds re : 12}em | =) — | 210 | 24.1] 1 —|—| — | — |—-|—| 8 2|6 
Lhodomus. . «1. 2... sl lo Aa ae ee 
Mm: —_|ı— 1 11 — 
| | 
Mülleriacea. | | | 
10. Mülleriana. 0! | | 
N ee! a I N N 4| — _— [mm a 
Mülleriar ie 4 re hei era! 0 -—|I-|—-|—-| — 1 I1—| - ll — || 
Mytilacea. | | IPs) | 
11. Pinnana. | | | | I) | N 
BIHBR, re sr jet har ar Hacke 60| ems| — | S | 40 | 12 20) ? 4 —| 1] — |——| 1/61 
TER ee ee Alles = 1 4, = El) ee 
Arcacea. 
15. Arcana. | 
Macrodon .. 
Cuculaea . . . 
Scaphula . . . » 
Parallelepipedum . 
Kal] 
| 
| 
| 
| 
| 
N 
fen 
ya 
mHoumSwvnwo_ 
on treue a hauge 
Arcagas lee, ö c 3] 20 | 71 — —| 10 | 71 4 
Benilia, Ulu i. . , NL] Wa elle Segen ilätede —_ 1-1 1 
Noeban 0... > RE le Ah ee — 
Isoarca . Rt B Be ee el 
Lunularca . . 
16. Pectunculana. 
Pectunculs . » - « eo _ u... S 
Limopsis A REES la 
Trigonocoelia . » » 2. 0... 
17. Nuculana, || | 
Nucular ae Pu ee 
Pleurodon Wood (non Harl.) . 
Gucmllellauseeatı Ss a ee 
18. Zedana. „ 
Kelaasea.a 7 
Yoldia . & 
Malletia . . . 
NEeNor 22. 
J 
| 
| | 
i 
\ | 
u | 1 
Lyzodesman. End 4em 4 —|—|— 0—|—-|—| 1 —| 
Lyriodontidae. | | | 1 
19. Zyriodontana. | | | ' | 
Disteira an. 4. ® 1 e 11 || — 0—|1— | — | — ||) — | 
Schizodus .... : %2%em —|0 | — | — 0—|—- |-—-—-1.—] — || | |— 
mem: _ — 0 = 
” ” . “ — 1 1 — | 
[311 
on 
alt= 
ken: 
I» 
De 
OOo 
II» 
_ 
4 
- 
| 
ale 
Eon 
IX) 
< 
|lvow 
Myophoria 
Lyriodon 
Najadea. 
20. Unionana. 
Bmorlkin.), = =. 
Byssanodonta d’O. 
Baphia Meusch. . 
Anthracosia King 
Barbala Humphr. 
Anodonta Brug. . 
21. Spathana, 
Iridina . 
Pleiodon, . 
Spatha . » 
oo... 
ER 
Bruni e,,e 
. 
euere 
le — | — | — 1— io) 
eieiaketel 
= 
a 
ee en 
Leila . 
Hyria . 
Castalia . . » 
22. Mycetopodana. 
Mycetopus d0. „2 un. .! 
ale, | 
[= fe | fs et ee 
OR ar a LOK 
a Se) 
ulnmaten air 
“46 je sans 
dm 0.0. ‚or.0yus 
| 
| 
= 
| 
| 
I 
| 
ze 
| 
Eee I—I 1 
C) Homomya Opistha- fake, al — | 8| 6 | W220 | 28) 5| 7 I —— A 8] 61 9 
siphonia Integripallial Arten [j1390) — | 40 |160 800 |390 | 902) 10 | 74 | —| 15 578 123|17 
