PARTULA OTAHEITANA. 193 
TasLe 125.—Partula otaheitana affinis. Faaripoo Valley. 
Mean VALUE. 
Shell. Aperture. Length aper- 
ture +length 
shell, propor- 
Length. Width. Proportions. Length. Width. Proportions. tions. 
Series. No. Tooth, index. 
mm. mm. p. ct. mm. mm. p. ct. p. ct. 
Plain, light..| 88} 16.5602+.0531] 9.8863 .0296) 59.5113+.1442| 8.9545+ .0300} 6.8386 .0217| 76.2955 .1773/ 53.8863+.1247| 2.1819 + .0664 
dark..} 214] 16.7939+.0326) 9.9009+.0192) 58.8691 .0938] 8.9799+.0191| 6.8037 + .0162) 75.5842+.1240) 53.3925+.0859| 2.0602+.0542 
Plain, all. ..| 302) 16.7256.0281) 9.8967=.0161) 59.0563+.0768] 8.9722+.0161) 6.8139 .0131| 75.7914 .1027| 53.5364+.0714| 2.0954 .0435 
Banded.... 6} 16.7500=.0778] 10.0000 +.1376| 59.3333 .6242| 8.8666+.1026| 6.8666+ .0796} 77.8333 +.3784| 52.3334+ .4878) 1.5000+.1376 
/N\ocapeaon 308] 16.7263+.0276) 9.8987 .0160) 59.0617+.0764| 8.9701+.0167| 6.8149+ .0129) 75.8312+.1015) 53.5130 .0710} 2.0839 .0429 
STANDARD DEVIATION. 
Plain, light..} 88] 0.7396+.0375| 0.4121+.0209} 2.0055+.1020} 0.4175+.0212) 0.3021+.0153) 2.4641+.1253|] 1.7349+.0881| 0.9238+.0469 
dark..| 214 .7082+.0230} .4162+.0136| 2.0345+.0663| .4151+.0141) .3521+.0114) 2.6901+.0876) 1.8627+.0607| 1.1984+.0383 
Plain, all. ..} 302 -7253+.0198) .4150+.0114) 1.9805+.0542) .4161+.0114) .3387+.0093) 2.6459+.0897} 1.8401 .0505} 1.1257 .0307 
Banded... . 6 .2828+.0550} .5000+.0974| 2.2669+.4413] .3727+.0725| .2896+.0562) 1.3744+.2675| 1.7717+.3449|} .5000+.0973 
ANI, coo 6060 308 .7193+.0195} 4171+ .0113} 1.9868+.0540} .4356+.0118) .3371+.0091) 2.6422+.0718] 1.8463+.0502) 1.1214+.0303 
1Numbers for the several groups are 88, 216, 304, 6; 310. 
TaBLe 126.—Partula otaheitana affinis. Faaripoo Valley. 
FECUNDITY. HEREDITY. 
No. of | Per cent} No. of | No. of | Total Average | Average Young, plain. Young, 
gravid.| gravid. | eggs. | young. |contents.| for gravid.} for all. Light.| Dark. banded. 
Series. Records. Total. 
Plain, light. . 119 63 182 2.52 ; Adults: 
dark.. 291 447 2.41 5 Plain: 
Banded 7 12 2.40 2.40 Light.. 
a Sana nRE ERR Dark... 
417 641 2.44 5 Banded... 
Parenoo VALLEY. 
The representatives of P. otahettana affinis from this valley are intrinsically 
interesting, especially by contrast with associations in the valleys on either side; 
but Garrett’s description of the affinis colony in Papenoo as it existed in his time 
greatly enhances the value of the present collection. The essential points stated 
by Garrett, already quoted, are that he found a “large colony” of sinistral afinis 
whose members displayed some of the color-characters as well asthe coil of rubescens, 
the dominant type of this valley, and also that “far up in the same valley, though 
common, none but dextral forms were found.” 
My own experience differs from that of Garrett. As explained in full in con- 
nection with the description of rubescens, three journeys were made into Papenoo 
and the collections represent three consecutive subsidiary regions of the whole area. 
The actual numbers taken are given in table 127. It appears that no sinistral speci- 
