Ronsox.— Notes on a Marine Spider found at Cape Campbell. 299 
Leda concinna, Adams, P.Z.S. 
L. australis, Cat. Mar. Moll; not of Quoy. 
Pecten australis, Sowerby. 
Hab, Foveaux Straits—Mr. C. Traill. 
Lima angulata, Sowerby. 
Hab. North Island—Mr. T. Kirk. 
Lima japonica, Adams. 
L. bullata, Cat. Mar. Moll; not of Born. 
Ostrea chiloensis, Sowerby. 
O. virginica, Cat. Mar. Moll; not of Lamarck. 
Ostrea glomerata, Gould. 
O. mordax, Cat. Mar. Moll; not of Gould. 
Ostrea reniformis, Sowerby (?). 
The rock-oyster of Dunedin. 
Art. XLI. 
Notes on a Marine Spider found at Cape Campbell. 
By C. H. Rosson. 
[Read before the Wellington Philosophical Society, 24th February, 1877.] 
My attention was first directed to our numerous spiders by an interesting 
account of the trap-door spider by Mr. R. Gillies.* After having read the 
paper above quoted, I began to collect specimens of such spiders as were to 
be found about Cape Campbell, more with the hope of finding some of the 
trap-door variety than of discovering a new one. 
Soon after this one of my boys told me that, while playing on the cape 
at low water, he had seen a spider in one of the tidal pools. Never having 
heard of the existence of a sea-spider, I thought he must have made a 
mistake; and I was more disposed to think so when I began to consider 
that, even if a spider could live in the sea, he could not do so without food, 
and he would not find any flies or beetles there. I may here remark, that 
up to the present time I have not been able to discover what these spiders 
do live on. But to return to my boy’s discovery. 
On going to see what it was, I found a veritable spider quite at home 
under the water, and having a nest in an old Lithodomus hole, of which 
the rocks about here are full. All the spiders of this kind which we have 
found have had nests in these holes, and always under water at all times of 
the tide. Over the mouth of the hole the spider spins a close web, which 
* Trans. N.Z. Inst., VIIL, Art. XXXI. 
