280 VARIATION, DISTRIBUTION, AND EVOLUTION OF THE GENUS PARTULA. 
The figures for fecundity (table 235) need no special comment, except that the 
1906 series from Punaruu shows a lower rate than the collection taken during the 
alternative time of the year. 
TaBLe 234.—Partula otaheitana crassa, northern series. Atehi, Maruapoo, and Punaruu Valleys. 
Mean VALUE. 
Shell. Aperture. Length aper- 
F ture + length 6 1 
Series. No. cineill, mxoNer Tooth, index. 
Length. Width. Proportions. Length. Width. Proportions. tions. 
mm. mm. p. ct. mm. mm. p. ct. p. ct. 
Ntehis plainer: 130) 17.1707+.0530) 9.9661+.0243) 58.0534 .1480) 8.8631 .0257| 6.8708 .0205| 77.4153 .1408) 51.5708+.1111| 1.6708+.0518 
bandedeeneran 278) 17.2633+ .0348) 10.0036 .0183} 57.9028 .0865} 8.9194 .0182| 6.9252 .0149| 77.5359 .1057| 51.6511 .0699} 1.5655+ .0333 
INAM, Atl, socna0c0008 408] 17.2338+.0291| 9.9917+.0147| 57.9510+.0755| 8.9015+.0149| 6.9078 .0121| 77.4975 =.0849| 51.6255 .0593) 1.5909+.0280 | 
Maruapoo, plain......} 116) 17.0595+.0422) 9.9586 .0238) 58.2327+.1458) 8.7741+.0298) 6.8518+.0201] 77.8103 .1546] 51.3193 .1099| 3.0339==.0411 
banded...| 17) 16.6206+.0899| 9.9000 .0420) 59.6764 .3424) 8.7118+.0555| 6.8765 .0461| 78.7941 = .2792) 52.5588+.3097| 2.8236+.1155 
Maruapoo, all........ 133) 17.0034+.0390} 9.9511+.0215|) 58.4173+.1374| 8.7662 .0221| 6.8549 .0185| 77.9361+.1408) 51.4775+.1065| 3.0074+.0391 
Punaruu, plain, 1906. .| 156) 16.8616+.0457| 9.9141+.0244) 58.7628+.1342) 8.8821+.0253) 6.6513+.0201| 74.7308+.1635| 52.6218+.0944| 2.7378+.0394 | 
banded, 1906. 1) 16.85 9.70 58.50 9.10 6.70 73.50 53.50 3.0000+.0 
plain, 1908. .| 163) 17.4849+ .0398| 10.1527+.0290| 57.9785 +.1393| 9.2484 .0230) 6.8338+.0194| 73.8804 .1500) 52.8067 +.0973| 2.8012 .0355 
banded,1908. 5| 17.7500 +.2158] 10.4200+.1588) 58.7000+ .9986| 9.4600=.1170) 7.1000+.0853| 74.9000 .4901| 53.5000 .3304| 2.6000+.2413 
plain, 1909. .| 188} 17.2010+.0466| 9.9236+.0251) 57.6595 +.1275| 9.0882+ .0242| 6.7224+ .0205] 73.8085 + .1448] 52.7681+.0970} 2.8301 +.0287 
banded, 1909. 9} 16.8500+.1770! 9.7889 .0640| 57.9444+.4510} 8.9000+.0924| 6.6112 .0374| 74.7222 + .4831] 52.6111+.4165)| 2.6000+.1955 
Punaruu, all, 1906....| 157) 16.8602+.0454) 9.9127+.0242| 58.7611+.1334) 8.8841 .0251) 6.6516+.0199) 74.7229+.1625| 52.6274+.0939| 2.7394 .0392 
1908....| 168) 17.4928+.0394| 10.1607 = .0286| 58.0000 .1385| 9.2547 += .0236) 6.8417+.0191| 73.9107 .1465| 52.8273 + .0951| 2.7955+.0352 
1909....| 197) 17.1850+.0453) 9.9172+.0241| 57.6725 +.1234| 9.0797 + .0235| 6.7173+.0195| 73.8503 .1402) 52.7589 .0945| 2.8195+.0285 
Perit Al, socc0008 522) 17.1868 .0263) 9.9943+.0152) 58.1054.0771| 9.0771+.0144) 6.7375+.0115| 74.1322+ .0869} 52.7414 .0549| 2.7882 + .0196 
STANDARD DEVIATION. 
Atehisplaineeertracit 130} 0.8963+.0375) 0.4109=+.0172| 2.5026+.1046) 0.4345 .0182| 0.3465+.0145) 2.3808+.0995| 1.8786=.0785| 0.8766+ .0366 
banded rr 278 .8594+ .0246 4525+ .0128) 2.1398+.0611) .4501+.0129| .3690+.0105| 2.6127+.0747) 1.7275+.0494) .8313+.0235 
Atehisalleaeee ein 408 .8724+ (0206 .4400+.0104| 2.2627+.0534| .4460+.0105] .3629+.0086) 2.5423+.0600|) 1.7767+.0419| .8435+.0198 
Maruapoo, plain......| 116 .6734+ .0298 -3806=.0168) 2.3281.1031) .4756+.0211) .3212+.0142) 2.4685+.1093} 1.7550=.0777| .6629+.0290 
banded....| 17 .5496 + .0635 .2566+.0297| 2.0930+.2421| .3394+.0392) .2818+.0326| 1.7069+.1974|) 1.8933+=.2190| .7059+.0817 
Maruapoo, all........ 133 .6669 = .0276 -3676+.0152| 2.3493+.0971) .3945+.0163) .3166+.0131) 2.4072+.0995) 1.8208+.0753) .6721+.0276 
Punaruu, plain, 1906..| 156) .8463+.0323 4518+ .0172|. 2.4861+.0949) .4681+.0179) .3715+.0142) 3.0273+.1136| 1.7480+.0667| .7479=.0278 | 
banded, 1906. VT rode eleva aoa droll) Gace almlavageterduac hiss], cag dace cagerdare oivera cal "hayes ere avak h Soeee tee | Uo cuneey Sew euet eae nee | eames Pee eR: Toner corre | SIRI R er eoRSe Cpe 0 
plain, 1908. .| 163 .7544+ .0281 -5489 + .0205| 2.6361 .0985| .4356+.0162! .3674+.0137| 2.8397+.1061| 1.8413+.0688) .6893+.0251 
banded, 1908. 5 -7155+.1526 .5264+.1123} 3.3106+.7061) .3878=.0827| .2828+.0603) 1.6248=.3465| 1.0954 .2336) .8000+.1706 
plain, 1909. .| 188 -9478 + .0329 -5106+.0177| 2.5921+.0901} .4925+.0171] .4168+.0145| 2.9428+.1024|) 1.9712+.0686| .6116+.0203 
banded, 1909. 9 7874 .1251 .2846+ .0452| 2.0061+.3189| .4109+.0653) .1664+.0264| 2.1487+.3416) 1.8526+.2945) .9165+.1382 
Punaruu, all, 1906....| 157 -8433 + .0321 .4507+.0171| 2.4783+.0943| .4673+.0177| .3691+.0141| 3.0192+.1149} 1.7438+=.0664| .7459+.0249 
1908....| 168 .7566 + .0278 -5506+.0202| 2.6614+.0979| .4530+.0167} .3679+.0135| 2.8155+.1036|) 1.8273+.0672| .6935+=.0277 
1909... .| 197 -9439+ .0320) .5012+.0170) 2.5689.0872| .4886+=.0166| .4069+.0138) 2.9174+.0991| 1.9664+.0668} .6308+.0201 
PmEVTE Alls cosco00e 522 -8925 + .0186 .5164.0107} 2.6111+.0545) .4881+.0102} .3910+.0081) 2.9424+.0614| 1.8588+.0388) .6871+.0138 
1The numbers are: Atehi, 130, 283, 413; Maruapoo, 118, 17, 135; Punaruu, 164, 1, 171, 5, 206, 10, 165, 176, 216, 557. 
The inheritance of the color-patterns (table 236) is such as to render the relative 
numbers sensibly equivalent in the groups of parents and offspring. ‘The colonies 
seem to be stable so far as their color-composition is concerned, if the facts are 
correctly indicated by the recorded observations. 
