304 TEREDO NAVALIS IN NOVA SCOTIA — MURPHY. 
and has nothing to fear from their close proximity. One never 
sees a Teredo pierce the tbue of another. The tubes make their 
way side by side, and cross each other in every direction, but, 
be the wood ever so worm-eaten, there always remains a woody 
wall, often very thin, it is true, between two adjoining tubes.” 
I think this description by the Dutch Commission is so full 
and comprehensive, that it leaves but little to add to the mode 
of sustenance and attaek of the animal, which is all I shall ad- 
vert to here. Suffice it to say, that the characteristics so ex- 
plicitly described are largely if not fully applicable to the species 
of Teredo inhabiting our shores. 
Let us now return to a review of the habits and attacks of the 
Limnoria Lignorum, so destructive from Chedabucto Bay west- 
erly and along our Atlantic coast and the shores of the Bay of 
Fundy. 
The piece of pile alluded to taken from the old Club house 
wharf at Halifax, was sent to me by Mr. Peter Archibald, C. E., 
Resident Engineer of the Intercolonial Railway. It had been in 
the water seven years,—was 12 inches in diameter when placed 
there, and was reduced to six inches by the action of the Lim- 
noria. I received it just as it was taken out; one could observe 
with the naked eye the crustacea then living. I had it placed 
in sea water, and sent to Notman’s Photographic establishment 
here to be photographed. The operator found no difficulty in 
obtaining a negative of the piece of wood which I produce, and 
enlarging it about four diameters. It was very difficult, how- 
ever, to find a single perfect specimen ; they all died when about 
one day from their abode in the harbour, and owing to their di- 
minutive size, they had so shrivelled up as not to be recogniz- 
able. Fortunately, Rev. Dr. Honeyman had a specimen which I 
obtained, and which is shewn enlarged about four or five diame- 
ters; it is procured from the same neighbourhood. Two views 
are shewn, the dorsal and ventral. 
Owing to the vrey able and comprehensive description of the 
Limnoria Lignorum given by Professor Baird, in his Report of 
the sea fisheries of the south coast of New England in 1871-72, 
we are able to place this wood borer in the order of its species as 
one of the crustacea. At page 379 Dr. Baird says: 
