Series. 
Lolo: 
mitella-rubra.......... 
pheea-rubra........... 
vespera-rosea.......... 
Ukubu: 
MIAME ie 2 aia sins o'6.50 2 « 
mitella-rubra.......... 
phea-rubra........... 
Dededo: 
PARTULA GIBBA, GUAM. 
TABLE 32.—Partula gibba, Guam. East Central Region—Continued. 
STANDARD DEVIATION. 
Proportions. 
Length. 

No. 
Length. 
mm. 
70 0.5846 +.0333 
47 .5892 +.0409 
55 .5914+.0380 
50 -6654+.0449 
222 -6131+.0196 
33 4673 +.0387 
12 .3937 +.0541 
29 -6654 +.0589 
108 .5989 +.0275 
182 .5869 +.0208 
53 .7095 +.0464 
17 .6108 +.0706 
1 
71 .7710 +.0436 
43 .6418 +.0466 
47 .5347 +.0372 
2 .5970+.2013 
6 .7228+.1407 
4 .2487 +.0593 
102 .5872 +.0277 
6 .4031+.0785 
3 .1414+.0389 
2 1.0500 +.3541 

mm, 
0.5276 +.0300 
-4315 +.0300 
-5413 +.0348 
-5917 +.0399 
.5324+.0170 
5372 +.0446 
.2769 +.0381 
-4055 +.0359 
.5224 +.0240 
5166 +.0182 
5058 +.0331 
-3572+.0411 
.5167 +.0292 
-5726+.0416 
-5068 +.0352 
.0 
-6046 +.1177 
-2958 +.0705 
.5396+.0254 
.3144+.0611 
-1633 +.0450 
-2000 +.0674 

p. ct. 
-1.9621+.1118 
1.7599 +.1224 
2.0225 +.1300 
2.2776 +.1536 
2.0599 +.0659 
1.9972 +.1648 
1.5183 +.2090 
1.8479 +.1636 
2.0648 +.0947 
mm 
0.3511 +.0200 
3384 +.0235 
-3404+.0218 
-3837 4.0259 
3596 +.0115 
-2806 +.0232 
.2230 +.0307 
.3766 +.0333 
4076 +.0187 

Aperture. 
Width. 
mm. 
0.2727 +.0155 
-2550+.0177 
-2876 +.0184 
-3024 +.0203 
-2889 + .0092 
.2786 +.0231 
-1491+.0205 
.2747 +.0243 
.3029 +.0138 
Proportions. 
Dp. ct. 
1.7868 +.1018 
1.4969 +.1473 
1.8167 +.1168 
1.8656 +.1258 
1.7775 +.0568 
1.8368 +.1524 
1.8314+.2521 
1.5651 +.1386 
1.8995 +.0872 
81 

Length aper- 
ture + length 
shell, propor- 
tions. 
PD. ct. 
1.3662 +.0778 
1.1458 +.0797 
1.3249 +.0852 
1.4827 +.0100 
1.3538 +.0433 
1.1721 +.0973 
1.2133 4.1670 
1.6872 +.1494 
1.6632 +.0763 
Ss | | | | |S 
2.8327 +.1855 
2.0017 +.2315 
2.6416+.1495 
2.4422 +.1776 
2.0341 +.1415 
0 
1.9791 4.3853 
1.6393 +.3909 
2.3248 +.1097 
1.4625 +.2847 
1.2472 +.3434 
3.0000 +1,0117 


.3912 +.0256 
.2704+.0312 
.4083 +.0231 

3675 +.0267 
-3448 +.0240 
.1000 +.0337 
-3590 +.0706 
-1658+.0395 
.3502 +.0165 
-1795 +.0349 
-1633 +.0450 
-5000 +.1686 
SWialivisie eis b lealo tare, el’ S:¢ 6. byes 'eiidi0) 6 mie = pela’ e).e)'e tb ake le. e016) > || oo) Wie 6 ©. eel 6's alee ie 
.3379 +.0465 
1.8856 +.2596 
the aperture they are even more dissimilar. 
the matter of tooth development (table 31), for this structure is displayed by some 
representatives in every class. 
it is carried out in detail. 
mitella in exactly the same ways. 
-2646 +.0364 

-2558 +.0167 
.1969 +.0227 
.2772 +.0157 
.3223 4.0234 
.3270+.0227 
0 
.3590 +.0706 
2236 +.0533 
3234 +.0153 
.1915 +.0372 
-1633 +.0450 
-1000 +.0337 
9 Gi@iiab 6 0: shee lotere« 
-2160+.0297 


2.2439 +.1470 
1.6677 +.1929 
2.1149 +.1197 
1.8767 +.1365 
2.0152 +.1401 
0.5000 +.1686 
1.9508 +.3798 
1.9203 +.4579 
1.9612 +.0926 
1.1547 +.2248 
0.4714+.1298 
3.0000 +1.0117 
1.8484 +.2545 
1.3816 +.0905 
1.4871 +.1720 
VR Hew HS ee HOA VOCUS ee ree ef s CON e ee Ces HL s CORT © OH Oe OHO Te E66 toe HE Hee Cio Foo Cle Ree a 0 0 6 46 whe Oe eee Sees 80 8 8 
1.4014+.0793 
1 D000 ek 
1.3769 +.0957 
0.5000 s-.1686 
1.5723 +.3061 
0.8291 +.1977 
1.4782 +.0698 


0.7638 +.1487 
0.9428 +.2596 

0.9574 +.1318 





This association is almost unique in 
Indeed, in the mitella-rubra group the shells with 
a small tooth or a trace of one outnumber those devoid of any such growth what- 
soever. . The colors of the lip are not noteworthy, but are recorded for complete- 
ness (table 31). 
The comparison of like classes of the three foregoing series is instructive when 
By way of example, the phea shells of Asados are col- 
lectively longer, wider, and more slender as compared with those of the mitella 
group of the same locality; the phea class of Tarague differs from its associated 
The characters of the aperture do not display 
the same kind of correspondence, but in the proportionate value of aperture length 
to shell length, the phza shells of both colonies show lower average figures than do 
the mitella. 
