SEA-FISHERIES LABORATORY. 191 



FATTNISTIC NOTES. 



By Andrew Scott. 



(1) Acanthometra sp. — This tladiolarian only occurred 

 at Port Erin in November and December. In 1904 it 

 was noted at Port Erin in February, and off Phyl in 

 March. 



(2) Noctiluca miliaris. — A most extensive visitation 

 of this organism took place in 1905, and its movements at 

 the beginning appear to be peculiar. It was first noted 

 in a collection from the Mersey on June 7th, then at Port 

 Erin on the 19th, and at Fishguard Bay on the 23rd. It 

 did not occur in the tow-nettings taken on the North 

 Wales Coast on June 6th, 20th or 21st, nor in twenty- 

 three gatherings from Cardigan Bay, representing the 

 whole of June and July. At the end of June it had 

 become well diffused in the Northern area, and continued 

 to be so for the rest of the year. It turned up in Car- 

 narvon Bay on July 20th and in Cardigan Bay in August. 

 These records seem to point to a southerly drift rather 

 than a northerly, though one naturally expects that the 

 invasion would come from the South with the greater 

 volume of water that enters the area by the South 

 Channel. An earlier collection at Port Erin, in June 

 might have thrown more light on this point. In any 

 case, some time would elapse before the organism reached 

 the Lancashire side after appearing at the Isle of Man 

 if the distribution took place from the North, and 

 Noctiluca was not present at Port Erin on May 11th. 

 Some of the tow-nettings taken during June, July and 

 August off the Lancashire coast were pure collections of 

 this protozoan. So far as we know Noctiluca has not 

 occurred at Port Erin previous to 1905. 



