378 Dr. C. Chilton on the 
joints of the fourth and fifth pereopods, this latter character 
being found in comparatively few individuals. 
Consequently from a comparison of my specimens with the 
two descriptions as given by Miiller and Stebbing I feel little 
doubt that they are sufficiently near to be considered as 
belonging to the same species, notwithstanding the widely 
separated localities from which they were obtained. Fritz 
Miiller does not mention the locality from which he collected 
his species, but presumably it was obtained while he was 
living in South Brazil either at Blumenau or at Desterro. 
My Picton specimens were obtained on the banks of the 
Waitohi stream at some little distance from its mouth ina 
place that would not be affected by ordinary high tides, 
though it would be reached by unusually high tides. At the 
same time and place I collected specimens of Porcellio scaber, 
several beetles, spiders, &c.—animals not by any means con- 
fined to the sea-shore. I have never seen the species from 
any other part of New Zealand. [Fritz Miller gives no 
particulars as to the conditions under which the specimens 
were collected, and the locality of the single specimen of 
O. sulensoni in the Copenhagen Museum described by 
Stebbing is uncertain, though it is supposed to have come 
from: Madeira. 
I am inclined to think that the single specimen from 
Kapiti Island deseribed by Filhol as Orchestia dentata (1885, 
p. 462, pl. li. fig. 1) belongs to O. tucurauna, but neither 
his description nor his figure is sufficient to make the identifi- 
cation certain *. 
‘The occurrence of Orchest‘a tucurauna both in South 
America and in New Zealand is interesting as another 
example of the connection between the two faunas; O. chili- 
ensis, M.-lidw., which was found at Picton along with 
* A few days after the MS, containing the statement above was posted 
I found a tube containing some Amphipods collected in 1906 by Dr. 
Cockayne at Kapiti Island “on rocks at base of a waterfall.” Of the 
three specimens in the tube (the existence of which I had previously 
forgotten), one is a well-developed male of O. tucurauna agreeing well 
with the Picton specimens, the lower antenna being quite stout and the 
fifth pereeopods, though not showing any detinite ‘broadening , hardly as 
narrow as the Picton specimens. There can be little doubt, therefore, 
that O. dentata, Filhol, from Kapiti Island, is really the same as O. tucu- 
rauna, as I had suggested. Of the other two specimens, one is Par- 
orchestia sylvicola (Dana), the land-hopper found all over New Zealand, 
often far from the sea, and the other is an imperfect specimen of Or- 
chestia chiliensis, M.-Kulw. 
It may be noted that both the Picton and the Kapiti Island specimens 
were obtained where the water was probably brachish or even fresh at 
the time; and I suspect that O. tuewauna will be found to be more or 
less confined to such localities. 
