364 TEEEDO 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 attack 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 : 



