192 DR WALTER M. TATTERSALL ON 



Family S 

 Genus Limnoria, Leach. 



Limnoria lignorum (Ratlike). 

 Scotia. 



Station 118, 51 41' S., 57 51' W., Port Stanley, Falkland Islands, January 

 1903. One. 



This specimen was found among other Isopoda from Port Stanley, with no special 

 note as to how it was come by. I cannot say, therefore, if it was engaged in its usual 

 practice of destroying wooden structures. I can find no appreciable differences from 

 northern specimens of the same species. The nearest recorded place of capture is 

 Port Elizabeth, South Africa (STEBBING, 1908). 



Genus Exosphseroma, Stebbing, 1900. 

 Exosphxroma, Hansen, 1905. 



Exosphteroma gigas, Leach. 



E. yifjas, Stebbing, 1900a. 



Scotia. 



Station 118, 51 41' S., 57 51' W., Port Stanley, Falkland Isles, January 



1903. ca. fifty, all sizes. 



Station 349, 51 41' S., 57 51' W., Port William, Falkland Isles, January 

 1904. Nineteen. 



I have nothing to add to STEBBING'S detailed account of this species. It was 

 infested, as seems usual with the species in this part of the world, with lais pubescens. 



Exosphseroma tristense (Leach). (Plate, fig. 1.) 



Splixroma tristense, Leacb, 1818. 



Sphxroma tristense, Hansen, 1 905. 

 nee. Sphxroma tristense, Krauss, 1843. 

 nee. Sphan'oma tristense, Stebbiug, 1910. 



Scotia. 



Station 461, lat. 40 20' S., long. 9 56' 30" W., Gough Island, 21st-22nd 

 April 1904. One male, 10 mm., and three females, 5-6 mm., from the 

 shore and from floating weed. 



I refer these specimens from Gough Island to LKACH'S rather obscure species, 

 which does not seem to have been recognised since it was described in 1818, from 



(llOY. SOC. EDIN. TRANS., VOL. XLIX., 882.) 



