282 IOWA STUDIES IN NATURAL HISTORY 
and that it became disseminated by submersion and climatic 
changes incident to the ice age. The most typical New Zealand 
ants are found on North Island; it is said that very few species 
occur on South Island. 
Spiders (Arachnida) and their near allies are common, upwards 
of three hundred species having been recorded. About Auckland 
a few were swept from vegetation but most were found in decay- 
ing stumps and under bark, sticks and logs. Everywhere on the 
open rolling lands which are of poor quality and on the sandy 
flats near Rotorua the shrubby manuka or tea-tree (Leptospermum 
scopartum) grows abundantly, and on this spiders seemed to be 
particularly common. 
Few poisonous or venomous animals inhabit New Zealand. 
However, one of the small spiders, known locally as the katipo 
(Latrodectus hasseltt), although no longer of frequent occurrence, 
falls under this group. The general black coloration and red 
abdominal band serve to distinguish it. 
We found another and larger spider with yellowish-brown 
eephalothorax, (Porrothele antipodiana) in Wilton’s Bush. 
So far as individuals are concerned, myriopods are common. 
Although large centipedes, some as much as seven to nine inches 
in length, are sometimes found, most of the representatives of the 
group (Chilopoda) are much smaller. At Mt. Eden and One 
Tree Hill we found good myriopod collecting under pieces of lava 
lying in the bottom of the old voleanie craters. A long and ex- 
ceedingly slender form was frequently discovered in decaying logs. 
Millipedes (Chilognatha) occur widely in damp situations. In 
Kauri Gully a small form with protruding eyes was taken at the 
base of kauri trees and also in sweepings from vegetation. A 
black species with red spots along the sides was abundant in the 
Mamaku bush; on July 29, numbers of these millipedes were found 
in copula. 
In conelusion, it seems to me that one of the most important 
acquisitions which comes to the participants of such a trip as 
ours, is the enlargement of one’s horizon and one’s outlook upon 
life for having had these new experiences in new places and under 
conditions which are out of the daily routine. And, too, the estab- 
lishment of professional contact with workers and institutions is 
an important factor in such an enterprise. The least service that 
we now can render is to share these experiences with others 
through written and spoken word. 
