PARTULA OTAHEITANA. 209 
Tasie 150.—Partula otaheitana affinis. Tautira Valley. 
MEAN VALUE. 
Shell. Aperture. pao auaes 
; ure + leng ; 1 
Series. No. ANG, MOTE Tooth, index. 
Length. Width. Proportions. Length. Width. Proportions. tions. 
mm. mm. Dp. ct. mm. mm. p. ct. p. ct. 
Plainwglightarerrererr 8) 15.8375+.1885] 9.1750+.0672| 57.7500 +.4732] 8.3250+.0874) 6.2500+.0571) 74.5000 .5332) 52.3750 .2511) ............ 
yellow brown| 27) 15.7177 .0843] 9.4260 .0550} 60.2407 .2796) 8.2630 .0400 623149 ==20457|) 76.27/78 ==.3504) 53.6111== 22129) ............ 
LDYCWANG Doood 168) 16.0286=+ .0422) 9.2988 .0211) 58.0655 .1126) 8.3869+.0216) 6.2738+.0161) 74.7560+.1079| 52.1786 .0879| ............ 
Plainwwalleereryrerier 203) 15.9796 .0375| 9.3109+.0192| 58.3424 .1076| 8.3680 .0192| 6.2784+.0148) 74.9483+.1038) 52.2439 .0781) 1.1951+.0240 
isewVelxGlo gon000000 2) 16.8500 +.1430) 9.2000 .0477| 54.0000 + .9539) 8.0000 + .2385) 6.0000 .1430) 73.5000+ .4769| 47.5000 1.9076) 1.0000+.0 
Alc diatom oro uence 205) 15.9880 .0374| 9.3098 .0190) 58.3049 .1088) 8.3644 .0191) 6.2756+.0148) 74.9342 .1031| 52.1976 .0817| 1.1933 .0262 
STANDARD DEVIATION. 
| 
Biainslighterrerere- 8) 0.7904 .1333) 0.2817+.0475) 1.9843 +.3346 0.3665 = .0618) 0:2397 = .0404| 2.2360=.3770| 1.0532== .1775) ............ 
yellow brown| 27 6499+ .0596| .4239+.0389| 2.1533=.1977| .3081+.0283) .3525+.0323| 2.6999+.2477| 1.6405 .1505| ............ 
IDYROMANs occ 168 .8119+.0298) .4050+.0149| 2.1647+.0796) .4155+.0152) .3090+.0114| 2.0731+.0763) 1.6450+ .0621| ............ 
Pai, allo ocoooneca 203 .7918+.0265| .4055+.0136| 2.2820+.0761| .4033+.0136) .3132+.0104| 2.1931+.0734) 1.6511 .0552) 0.5141+.0169 
Bandedtivarschaisieusis 2 .3000+.1011! .1000+.0337| 2.0000+.6745| .5000+.1686) .3000=.1011) 1.0000+.3372| 4.0000+1.3972| .0 
A og @aceneneees 205 .7930+.0264| .4038+.0134| 2.3103+.0769) .4060+.0135) .3141=.0105) 2.1891+.0729| 1.7352 .0578| .5121+.0185 
1The numbers are, respectively, 205, 2; 207. 
Atoniraa, AIURUA, AND VAIAU VALLEYS. 
The constitution of these three colonies has already been described. While 
no banded individuals were collected, 5 out of 16 taken in Vaiau were sinistral, and 
2 of these were ruddy-brown in color with pink-tinged apertures (plate 30, figs. 1 
and 2). All others were dark-brown, excepting I straw-yellow shell from Aionifaa. 
The statistics (table 151) sufficiently describe the shells. It is significant that 
the sinistral individuals of Vaiau are shorter and stouter than their dextral relatives, 
precisely as in Haavini Valley. 
TasLe 151.—Partula otaheitana affinis. Aiontfaa, Aiurua, and Vaiau Valleys. 
Mean VALUE. 
Shell. Aperture. Length aper- 
ture + length 
shell, propor- 
Length. Width. Proportions. Length. Width. Proportions. tions. 
Series. Tooth, index. 
mm. mm. p. ct. mm. mm. p. ct. Dp. ct. 
Aionifaa, dex.. 16.0143 + .0984| 9.2149+.0575| 57.2858 .2064) 8.3286+.0744| 6.2000+ .0447| 74.2183+.3436) 51.7857+.2925| 1.0714+.0464 
Aiurua, dex... 15.5810 + .0436| 9.1100+.0217| 58.3500+.1472| 8.1820+.0227) 5.9780+.0161) 72.9500 .1448) 52.3600+.1129| 1.0400 .0016 
Vaiau, dex.... 15.5408 + .1383) 9.0273 + .0834) 58.0455 + .3613) 7.9909=+ .0903) 6.1909+ .0437) 77.3181 = .5333) 51.4091+.2796| 3.0909 + .2203 
Silo ooo 15.2900 + .0887| 9.5000 + .0661| 62.3000 .5849) 8.2200+.0914) 6.5400+.0800) 79.5000 + .4266| 53.7000 .6986| 2.2000 .2955 
STANDARD DEVIATION. 
Aionifaa, dex.. 0.5460+ .0696| 0.3191 .0407) 1.1452 .1460; 0.4130+.0526) 0.2478+.0316) 1.9059 .2430) 1.6225 .2068) 0.2575+.0328 
Aiurua, dex. . . -6460+ .0308) .3217+.0153) 2.1830+.1041) .3371+.0161) .2394+.0114) 2.1465+.1024| 1.6734+.0798) .0242+.0013 
Vaiau, dex.... -6800+.0978) .4103+.0590) 1.7768+.2555) .4438+.0639| .2151+.0309) 2.6222+.3771) 1.3750+.1977| 1.0833=.1558 
sin.... -2939+ .0627| .2191+.0467) 1.9390+.4136) .3029+.0646| .2651+.0566) 1.4142+.3002) 2.3152+.4940) .9798+.2089 
