68 
PACIFIC SCIENCE, Voi. IV, January, 1950 
tion at the bluffs can be accounted for on the 
basis of splash action. In other words there 
is a definite splash zone at the bluffs of nearly 
1 foot (see Table 1). Other species are 
apparently not so affected in this way. 
One very interesting point that emerged 
from this survey was that in general there 
is a far wider range of values for the upper 
limits of species than for lower limits, and 
it therefore appears that the lower limits are 
more rigidly controlled than the upper limits. 
REFERENCES 
Chapman, V. J. In press. Some new marine 
algae from New Zealand. Farlowia. 
and M. Ambler. In press. A note 
on the status of Pyliaella ( Bachelotia ) 
novae-zelandiae. Farlowia . 
Stephenson, T. A. 1939. The constitution 
of the inter-tidal fauna and flora of S. 
Africa. I. Linn. Soc. London, Jour., Zool 
40: 487-536. 
TABLE 1 
Vertical Range of Species at Stanmore Bay 
SPECIES 
LIMITS 
AVERAGE* 
HEIGHT DUE TO 
WAVE ACTION* 
RANGE* 
V ol sella neozelanicus 
upper 
9.49 
10.19 
8.2 -11.78 
lower 
6.58 
6.34- 6.76 
Chamaesipho spp 
upper 
9.39 
10.24 
8.2 -11.78 
lower 
6.71 
6.66- 6.76 
Saxostrea glomerata .... 
upper 
7.44 
6.76- 8.13 
lower 
5.56 
V ermilia carinifera .... 
upper 
6.26 
5.39- 7.07 
lower 
5.56 
Corallina, Hormosira, Leathesia 
upper 
5.19 
4.8 - 6.27 
Elminius pH cat us ..... 
upper 
8.59 
Liagora harveyana .... 
upper 
4.29 
Codium adhaerens .... 
upper 
5.29 
5.14- 5.47 
Carpophyllum spp. .... 
upper 
2.53 
2.24- 2.82 
Cystophora torulosa .... 
upper 
4.04 
Ecklonia radiata 
upper 
2.07 
2.24- 2.29 
*Admiralty datum. All measurements in feet. 
