300 VARIATION, DISTRIBUTION, AND EVOLUTION OF THE GENUS PARTULA. 
compared collectively, if at all, with their combined sinistral associates. Yet with 
all qualifications, duly set forth in the special summaries, the figures define the 
different divisions of Partula otaheitana—the most complex species belonging to the 
| 
genus. | 
Tas Le 251.—Partula otaheitana. General statistical description of the primary varieties. Sinistral individuals =12,684; dentrall 
individuals =7,510; total number=20,194. (The numbers for the tooth are greater.) Mean value. 
Variety. 
otaheitana, sin. . .| 
dex. .| 
amabilis, sin.... .| 
dex ...| 
vubescens, sin... . 
dexaaare 
Ofints asin 
sinistrorsa, sin... 
dexser 
sinistralis, sin... . 
dex... 
GROSSE, Ss 50000 | 
lignaria, sin 
dex... . 
| 19.3184 == .0304 
| 16.5962=£.15 
| 16.6187. 
| 17.4493. 
| 17.9926=. 
| 16.25 
Length. 
mm. 
19.1003 + .0268| 
18.0018+ .0151 
18.4955=. 
20.6411=+. 
19.3845=. 
17.9926=. 
17.2787=. 
18.2633 += .0942 
17.9955+.0180 
| 10.1199 .0112) 
Shell. 
Width. 
mm. 
10.9888 = .0142 
10.9736+ .0172 
10.5839+ .0076) 
10.7851 = .0260) 
11.5942 + .0154 
10.1462 = .0877 
9.7068 += .0049 
10.7015 + .0072 
9.8536+ .0073 
10.2081 + .0178) 
10.0069 = .0066 
2.8) 
10.6833 = .0533 
10.4621 .0091) 
Proportions. 
p. ct. 
57.4373 .0719 
56.7447 + .0745 
58.7547 = .0368) 
58.2186 .1119 
56.1709 + .0478 
61.1154=. 
58.7047=. 
55.1979=. 
56.1810=. 
56.4063 = .0; 
56.6702=. 
57.8423 = .0324 
58.5 
58.4583 + .2121 
58.0757 = .0475 
Length. 
mm. 
9.8321=. 
9.8853+. 
9.3931+. 
9.6521. 
10.4608=. 
8.9385 = .0893 
8.8076 = .0052} 
9.8033 + .0079 
9.2736 .0123 
8.9975 = .0074 
9.2336 .0192 
9.1292 = .0067 
9.3 
9.7082 + .0536 
9.4704 .0093 
Aperture. 
Width. 
mm. 
7.7239. 
7.6667. 
35228 
7.5407=. 
7.9475. 
7.4439+., 
Proportions. 
p. ct. 
78.4744=. 
77.4976. 
77.8426. 
78.0509. 
76.0105=. 
78.4615=+. 
76.5190=. 
75.6373+. 
74.9703 +. 
76.1162+. 
74.8234=. 
75.3860+. 
73.5 
78.2500 + .3899 
78.6125 = .0570 
Length aper- 
ture + length 
shell, propor- 
tions. 
Dp. ct. 
51.4076=+ .0590 
51.1176+ .0644 
52.0881 = .0293 
52.1347 + .0934 
50.6772 + .0337 
53.7692 = .2948 
52.8743 = .0175 
50.5368 = .0223 
51.4703 = .0517 
51.4573 = .0237 
51.2362 .0817 
52.7566+ .0260 
56.5 
52.9583 = .1776 
52.5301 + .0419 
Tooth, index. 
2.7138 .0267 | 
2.7600 + .0289 
2.8292 .0122 |) 
3.0000 = .0375 
1.5578+.0171 |, 
2.1539 .1142 | 
2.3125 .0071 
1.0964 .0041 
2.1694 + 0300 
2.5943 .0122 | 
1.6568-+.0362 | 
2.5122 .0120 
3 | 
3.2500=.1070 
3.3417 .0176 | 
