394 Mr. W. F. de Vismes Kane on 
Kinnigo Gut to Ardboe Point (about 12 miles) on the western 
shore. With about 1 mile of offing in 40 to 50 feet of water 
and a muddy bottom I made a haul, and took several Mysis 
relicta and numerous Entomostraca, the new dredge working 
admirably. Again, when about halfway home, another haul 
in 35 feet and similar bottom resulted in a further capture of 
Mysis. On the following day I sailed north and dredged in 
39 feet soundings about 1 mile west of a line drawn between 
Ram’s Island and Langford Point, and drifted east, the 
bottom being muddy, and took a great quantity of Mysis and 
a few Entomostraca &c. Another haul was then made in 
45 feet and similar ground, with Langford Point abeam about 
2 miles off. An immense number of Mysis were captured. 
Another haul in shallower water nearer land and similar 
bottom was equally successful. Off Tolans Point, on a sandy 
bottom and shallower water, Argulus foliaceus and various 
Hntomostraca were taken, but no Mysis. The third day’s 
explorations were chiefly directed to research for Entomostraca 
along the south shore of the lake as far as the Upper Bann 
River. Tere, with 2 miles of an offing in 20 feet of water, 
the bottom proved hard and sandy, and two trials for Mysis 
proved fruitless. ‘The fourth day was devoted exclusively 
to Entomostraca, and no dredging was done. I may here 
state that the plankton did not offer any evidence of Scandi- 
navian origin, such as I subsequently detected in the Lough 
Erne Entomostracous fauna. Consequent upon my success in 
Lough Neagh, I determined to follow up the quest of Mysis 
relicta in Lough Erne, and accordingly on the 30th November 
following I dredged in the head waters of the upper lake 
between Belleisle and Knockninny. This part is uniformly 
shallow, and the bottom wherever tested (except quite along 
the shore) of a soft ooze. Here also I succeeded in getting 
numerous examples of this Mys¢s in depths varying from 10 
to 20 feet, the females generally being provided with ovige- 
rous sacs, as I had hoped at that season, and were of a greater 
average size than those captured in July in Lough Neagh. 
But in addition to this I had the satisfaction of meeting with 
two species of HKntomostraca which have not so far been 
recorded from British waters, and which constitute further 
links in the chain of evidence connecting the freshwater fauna 
of Ireland with that of Scandinavia, namely Bythotrephes 
Cederstromti, Schoedler, var. Cederstromit (species stricta), 
and Bosmina mixta, Lillj., var. humilis. My friend Canon 
Norman kindly identified them, and I give the names which 
correspond to the forms delineated in Prof. Lilljeborg’s new 
