52 
VARIATION, DISTRIBUTION, AND EVOLUTION OF THE GENUS PARTULA. 
TABLE 20.—Partula radiolata, Guam. Statistics of the color-classes; colonies of the Southwest and Southeast Regions. 
Series. 
pallida. -275.. ui 
strigata-helix..... 
Haver sac ee hiss 3 
Umatac Salonga: 
. ose 
21 wigs. 
No. 
Shell. 
Width. 
MEAN VALUE. 
Proportions. 
Length. 
Aperture. 
mm. 
16.9186 +.0830 
17.0833 +.1023 
mm. 
10.4829 +.0554 
10.4556+.0731 
p. ct. 
61.7857 +.2550 
61.1111 +.3229 
mm. 
9.6200 +.0482 
9.7666 +.0757 
mm. 
7.0429 +.0413 
6.9556 +.0549 

Length aper- 
ture + length 
shell, propor- 
Proportions. tions. 
p. ct. Pp. ct. 
73.0143 +.1895)56.8143 4.2589 
71.1667 +.2428/56.8889 +.3311 
72.3868 +.1704|56.8396 +.2051 
17.0346 +.0860 
16.7750 +.1296 
10.5000 +.0549 
10.4625 +.0687 
61.4231 +.2312 
62.3875 4.2363 
9.7410 +.0464 
9.5625 +.0616 
6.9923 +.0437 
6.9000 +.0491| 
71.6282 +.1989)/57.0897 +.1707 
72.0625 +.3038|56.8125 +.1760 
eee | eae ae | ER | | | LS | 

17.5695 +.0704 
17.6628 +.0898 
17.3733 +.1187 
17.6750 +.2413 
17.3500 +.0580 
17.4100 +.1276 
17.3631 +.0534 
16.0377 +.1265 
16.0000 +.1747 
15.8955 +.0772 
15.9895 +.0787 
mm. 
0.7281 +.0587 
-6438 +.0723 
-7052 +.0462 

-7969 +.0608 
-7685 +.0916 
19 fo .0512 

— 
.2343 +.0635 
.1539 +.0839 
.7155+.1706 
_ 
.2039 +.0498 
_ 
-6324 +.0410 
-7328 +.0902 
-6583 +.0377 
-8593 +.0894 
-6344+.1235 
-3799 +.0546 
.7191+.0556 

10.7348 +.0527 
10.6642 +.0611 
10.9500 +.0292 
10.7120 +.0395 
10.7259 +.0382 
10.7067 +.0842 

10.7217 +.0351 
9.7476 +.0786 
9.6666 +.1026 
9.7909 +.0890 
9.7473 +.0532 
60.6395 +.1464 
61.3139 +.2790 
61.7500 +.6476 
9.7791 +.0568 
9.5967 +.0703 
9.8500 +.1536 
7.0000 +.0367 
6.9233 +.0433 
7.2500 +.0559 
71.5348 +.1387/55.1395 4.1278 
72.0116 +.2571]55.1512 +.2043 
73.2500 +.6476/55.7500 +.4381 
| ees 
61.1852 4.2176 
60.7666 +.3841 
| 
60.7857 +.2949 
60.1667 +.3434 
61.5000 +.3780 
60.8948 +.2093 
9.6000 +.0351 
9.6600 +.0571 
9.0333 +.0625 
9.0000 +.0693 
8.9546 +.0523 
9.0053 +.0394 
STANDARD DEVIATION. 
mm. 
0.4861 +.0392 
4597 +.0517 
4775 +.0312 
.5084 +.0388 
-4075 +.0486 
-4815 +.0310 
A204 =e. 054 2 
5919 +-.0432 
-0866 +.0206 
-6760 +.0279 
-4169 +.0270 
4837 +.0595 
-4323 4.0248 

9342 +.0555 
«3727 4.0725 
4379 +.0629 
p. ct. 
2.2367 +.1803 
2.0314 +.2283 
2.1927 +.1436 
2.1409 +.1635 
1.4017 +.1671 
1/9855 +:.1277 

2.0125 +.1035 
2.7131 4.1973 
1.9203 +.4579 

2.1410 +.0885 
2.3713 3.1538 
2.2054 +.2716 
mm. 
0.4228 +.0341 
-4762 +.0535 
4470 + .0293 
-4301 +.0328 
-3655 +.0435 
-4202 +.0270 
-7807 +.0401 
-6839 +.0497 
-4555 +.1086 
-7478 +.0309 
-3825 +.0248 
3282 +.0404 


6.8259 +.0255 
6.8734 +.0419 
6.4417 +.0464! 
6.3667 +.0687 
6.4818 +.0440 
6.4421 +.0309 
mm. 
0.3628 +.0292 
3452 +.0388 
-3592 +.0235 
.4047 +.0309 
-2915 +.0347 
3777 +.0242 
-5009 +.0259 
-4209 +.0306 
-1658 +.0395 
4732 +.0196 

.2783 +.0180 
.2409 +.0296 
1.8393 4.1205 
1.8411 +.1182 
2.1491 +.0889 
70.9629 +.1654/55.2963 +.1813 
70.9000 +.3230 55.4334 4.2333 
———— 
55.3261 +.1508 
70.9493 +.1473 

56.2619 +.2905 
56.3333 4.4878 
56.2276 +.2888 
71.2619 +.2796 
71.0000 +.3812 
72.0454 4.2653 

71.4474 +.1877)56.2632 4.1967 
| 
p. ct. 
2.2709 +.1831 
2.0829 +.2341 
p. ct. 
1.6626 +.1340 
1.5275 .1717 
2.2144 +,.1450 

1.5806 +.1207 
1.0439 +.1244 
1.8422 +.1406 
1.8017 +.2148 

1.4507 4.0932 
1.7581 +.0903 
1.9869 4.1444 
1.2990 +.3098 
1.9074+.0981 
2.4999 +.1818 
1.9203 +.4579 
1.8266+.0755 
1.9756 +.1282 
1.3399 +.1649 
1.8024 +,1169 
1.8547 +.2284 
| — | | — | 
2.0034 +.2085 
1.2473 4.2428 
1.8586 +.2673 
-4246 +.0442 
-2516+.0490 
-2571 +.0370 
3154 +.0328 
.2494 + .0486 
.2167 +.0311 
1.9737 +.2054 
1.7717 +.3449 
1.4200 +.2042 
1.8999 +.1977 
1.3844 +.2695 
1.3048 +.1876 
—— | — | | | | | 
4865 +.0376 
1.9131 +.1480 
-3605 +.0278 
-2825 +.0218 
1.7159 .1327| 1.7982 +.1391 

