90 THE NAUTILUS. 
The writer has specimens from five different localities. Four 
of these localities are on ridges and the other in a valley. First 
locality, Manoa-Palolo Ridge: Fossil specimens in collection as 
catalogued, Cat. No. 487, four sinistral and No. 492 three sin- 
istral, making a total of seven sinistral specimens. 
Second locality, Palolo-Waialae Nui ridge: Fossil and living 
specimens, Catalogue No. 61 nine dextral, No. 382 two dextral 
and two dextral fossil specimens not catalogued. Total, eleven 
dextral live specimens and two dextral fossil specimens. 
Third locality, Waialae-Nui valley: Catalogue No. 38 seven 
dextral specimens, No. 383 one dextral specimen, No. 39 seven 
dextral specimens. Total, fifteen dextral specimens. 
Fourth locality, Waialae Iki-Wailupe ridge: Catalogue No. 
28, fifty-two sinistral specimens. 
¥ifth locality, Wailupe-Niu ridge: Catalogue No. 14, two 
hundred and twenty-two sinistral specimens. 
Summary. 
Fossil. Live. 
Dextral. Sinistral. Dextral. Sinistral. 
_ ist locality . . — 7 — 
anda, % ahs 2 — 11 — 
ora. ** aya t — — - 15 — 
Athos + BY iy — = 52 — 
iho oo er — — — 229 
Totals. 2 fi 78 222 
Thus it can be seen from the above given data the specimens 
increase in number from west to east, the first ridge having no 
live specimens and the last having the most. What does this 
signify? Does not this signify that since Diamond Head and 
Punchbowl came into eruption, climatic conditions have 
changed which resulted in the elimination of cestus from the 
neighborhood of the two now extinct volcanoes? 
Now, in relation to the fossils found on location one, this is 
the nearest locality to Diamond Head; the second locality a 
little further away; the third still further; and the fourth and 
