10() TRANSACTIONS, NATURAL HISTORV SOCIETY OF fiLASGOW, 



XX. 

 JOTTINGS FRbM MY NOTE-BOOK. 



BY DAVID ROBERTSON, F.L.S., F.G.S. 



TuBULARiA HUMiLis, Allman. 



[Uead 29th October, 1889.] 



At the latter end of this season, when in company 

 with Mr. A. Turbene of the Millport Marine Station, 

 we found this beautiful little hydrozoon moderately 

 common on the timbers of Keppel Pier, Millport, 

 and plentiful on the bottom of a boat moored at the 

 same place, also sparingly on some of the numerous 

 boats drawn up on the shore about half a mile distant 

 from the Keppel, Had this species been as plentiful 

 there in former years as it has been this season, I 

 think that 1 couid scarce'> have failed to notice it. 



Whether il is an accidental introduction brought 

 with the timbers of the new pier, and destined either 

 to thrive and spread over the country (as so many of 

 our introductions have already spread), or dwindle 

 away in the absence of its wonted conditions ; or 

 whether it is only one of those visitors that we 

 sometimes see at long intervals, time alone can de- 

 termine. 



Hincks, in his British Hydroid Zoophytes, states the 

 habitat of this species to be "on rocks close to the 

 level of low spring tides, near the mouth of Kinsale 

 Harbour (Ireland). G. J. A." 



Lagis Koreni, Malagren. 



[Read 24th December, 1889.] 



The tube of this not-uncommon worm, which I had 

 supposed to be Pectinaria belgica, Pallas, had often 

 come under my notice while digging in the sand 



