Guascorr—A List of some of the Rotifera of Ireland. 39 
stretched out the long tapering neck, unfurled the corona, and 
commenced to resuscitate exhausted nature with an ample meal. 
In this position the transverse corrugations of the integument were 
plainly visible, as was also the exceptionally long buccal funnel. 
The species is said to have no eyes, and certainly none were appa- 
rent; yet I noticed that as soon as it neared the coloured mass of 
sediment it altered its course, and made straight for it with evident 
purpose; the boldness of its stride also seemed hardly that of a 
creature dependent on the sense of touch alone for guidance. 
Habitat.—Streams and ponds, Cos. Wexford and Waterford. 
Callidina bihamata, Gosse. 
[The Rotifera, vol. 1. p. 111, Pl. X. fig. 7.] 
Quite a number of these occurred in bog moss from Kerry. 
The very short dorsal antenna and its backward direction affords 
a good feature for identification. 
Habitat.— Bog moss, Co. Kerry ; a pond, Co. Wexford. 
Adineta vaga (Davis). 
[The Rotifera, vol. i. p. 112, Pl. X. fig. 10.] 
Of peculiar interest, there being only two species of the genus. It 
was busily searching for food, and the strange manners described 
by Dr. Hudson were in full operation. The clear channel dividing 
the head into two halves was conspicuous. 
Habitat.— Amongst Confervee on the walls of a well, Co. Wex- 
ford. 
Microcodon clavus, Ehrenberg. 
[The Rotifera, vol. i. p. 118, Pl. XI. fig. 1.] 
When I first saw this morsel of exquisite beauty it was swaying 
about between two leaflets of Myriophyllum, attached, as Dr. 
Hudson shrewdly guesses, by a slender foot-thread to a tiny heap 
of flock. As the light was fortuitous, I distinctly saw this line, and 
furthermore it was clearly demonstrated by tiny atoms of flock 
which adhered to it in several places throughout its length, all of 
which responded in concert to the swaying of the animal. The 
creature remained in the same spot for more than an hour, 
occasionally changing its point of attachment until there was quite 
