Griascorr—A List of some of the Rotifera of Ireland. 30 
Melicerta ringens, Schrank. 
[The Rotifera, vol. i. p. 70, Pl. V. fig. 1.] 
Abundant in ponds, adhering in colonies to the stems of water 
plants. In one instance I noticed many empty tubes of large size, 
the recent occupants lying about not far distant, the long wrinkled 
foot looking so strangely naked without its habitual covering. 
Whether it is customary with the species thus to forsake their tubes 
at certain seasons of the year, or whether it was due on that 
occasion to some discontent with their surroundings, I do not 
know. The occurrence suggests investigation. 
Habitat.—A pond, Co. Wexford. 
Melicerta conifera, Hudson. 
_ [The Rotifera, VOlsda pa Se NE igen 
A large specimen seated upon the stem of a plant without a 
tube, the body so contracted as to entirely conceal the foot. The 
lobes of the corona were fully expanded, and did not exceed the 
width of the body; the long pointed chin was likewise observable. 
At some little distance there was an empty tube of about the same 
circumference, but of greater length, the long conical pellets of 
which sufficiently denoted the species to which it belonged. 
Habitat.—A. pond, Co. Wexford. 
Limnias annulatus, Bailey. 
[The Rotifera, vol. i. p. 77, Pl. VI. fig. 2. ] 
Two of this rare species occurred upon the leaflets of Utricularia 
oulgaris. I have mounted them in situ in glycerine jelly. The 
transverse ridges of the tubes show out beautifully ; the head of 
one of the creatures is bent sideways in the tube, and shows the 
horny processes. In order to kill them I applied a drop of hot 
water to the edge of the cover glass, which was laid over the plant 
on which they were fixed, whereupon they immediately expanded 
the lobes of the corona, and set the wheels in motion with glorious 
vigour, which, with a spot-lens, afforded a most interesting sight to 
the beholder. I subsequently killed them by applying the glyce- 
_ rine jelly, which at the same time preserved their bodies. 
Habitat.—A. deep marsh drain, Co. Wexford. 
SCIEN. PROC. R.D.S., VOL. VIII., PART I. D 
