60 Scientific Proceedings, Royal Dublin Society. 
as it twisted about I had much difficulty in getting a good view 
of its shape. The head was broad on the frontal margin, and 
sometimes contracted into a straight line, over which the soft 
proboscis was curled ; at times it assumed a conic form and bore 
little resemblance to the genus to. which it belonged. Another 
appeared swimming in the open, undoubtedly the same species, 
bearing all the characteristics portrayed in the figure of the 
Monograph. 
From two localities. 
Habitat.—A. bog, a marsh drain, Co. Wexford. 
Diglena catellina, Ehrenberg. 
[The Rotifera, vol. ii. p. 538, Pl. XIX. fig. 10. ] 
A fine stout example, busily rooting amongst a mass of 
floccose sediment as it stood upon its toes, which were bent forward 
under the body. 
Habitat.—A. pond, Co. Wexford. 
Diglena inflata, sp. nov. 
[Pl. IV. fig. 6.] 
Sp. Ch.—Body gibbous in the middle, flat on the ventral sur- 
face, white; head long, narrow; no eyes; foot thick, of one or 
two (?) joints; toes nearly as long as the foot. 
The body of this species is white throughout; gibbous in the 
middle, with a strong fold below the central segment into which 
the lower portion is continually withdrawn ; the long narrow head 
projects into the usual curved proboscis, the ciliated dise being quite 
prone and running down nearly the whole length of the neck. 
The foot, composed of one or two stout joints, bears two short 
and slightly decurved toes; internal organs normal. Its manners 
are sluggish ; remaining long in the same spot, it twists and turns 
incessantly. The extremities exhibit great flexibility, while the - 
central area preserves a certain rigidity of form. Size about that 
of D. circinator. 
Habitat.—One example from a stream, Co. Waterford; several 
from a pond, Co. Wexford. 
