46 Scientific Proceedings, Royal Dublin Society. 
Notommata forcipata, Ehrenberg. 
[The Rotifera, vol. ii. p. 238, Pl. XVIII. fig. 1.] 
A dead specimen, from a bog, Co. Wexford. 
Notommata brachyota, Ehrenberg. 
[The Rotifera, vol. ii. p. 24, Pl. XVII. fig. 1.] 
Essentially a scavenger this species has frequently occurred, 
four or five together, feeding busily within the empty skins ofaquatic 
larvee and shells of small species of Entomostraca, the very soft 
pliant nature of the body affording a marked adaptation to the 
situation. The very large stomach was always filled with a light 
brown granulated mass as described in the Monograph. The red 
eye was mostly visible, but only when it swam in the open could 
the minute auricles be detected. 
Habitat.—Ponds, bogs, not uncommon, Co. Wexford. 
Notommata saccigera, Ehrenberg. 
[The Rotifera, vol. ii. p. 24, Pl. XVII. fig. 2. ] 
So exactly resembling the figure referred to, as it glided along 
the slide with auricles extended, that I have little doubt of its 
identity, though I did not get a glimpse of it from any other 
point of view; the face was kept flat upon the glass as it moved. 
Habitat.—A pond, Co. Wexford. 
Notommata naias (?), Ehrenberg. 
[The Rotifera, vol. ii. p. 25, Pl. XVII. fig. 2.] 
About the same size; the shape of the creature did not corre- 
spond with that of the above figure, the head being very much 
wider than the body, which latter tapered from it to the foot; 
perhaps the empty state of the stomach may account for this, 
but the formation of the head seemed identical with it; the clear 
brain bore a small eye close to its extremity, which looked black 
by transmitted light, but was of a deep red colour when viewed 
