Giascotr—A List of some of the Rotifera of Ireland. 67 
Dinocharis tetractis, Ehrenberg. 
[The Rotifera, vol. ii. p. 72, Pl. XXI. fig. 2.] 
This species is rare in comparison to its congener D. pocillum ; 
in all cases the spurs -were well developed ; the spine between tlie 
toes of course being absent. 
Habitat.—A. bog, Co. Wexford. 
Searidium longicaudum, Ehrenberg. 
[The Rotifera, vol. 1. p. 73, Pl. XXI. fig. 5. | 
Noticed as “rare,” I have met with it in great profusion in bogs. 
Its movements are quiet and deliberate, the long toes are trailed 
after it, held close together like a tail; the large crimson eye cer- 
tainly appeared to be seated upon the mastax and partook of all its 
movements. It lives well in captivity, and outlasted all other 
species in the tank. 
Habitat.—Bogs, Co. Wexford. 
Stephanops lamellaris, Ehrenberg. 
[The Rotifera, vol. 11. p. 75, Pl. XXI. fig. 7.] 
Some very fine specimens occurred among waterweed from a 
marsh drain; in some instances the three posterior spines of the 
lorica were projected upward ata considerable angle from the body, 
which gave it quite a bristled appearance. Can it be that they are 
raised or lowered at the will of the animal? The width of the 
head and the body were always much broader than given in the 
figure referred to. From the same dip appeared some others 
resembling S. muticus, apparently without the posterior spines, but 
I had not an opportunity of watching them to ascertain this 
point to a certainty. 
Habitat.—A. marsh drain, Co. Wexford; a cattle-pond, Co. 
Waterford. 
Stephanops unisetatus, Collins. 
[The Rotifera, vol. ii. p. 76, Pl. X XT. fig. 8.] 
Not frequent. 
Habitat.—Ponds and bogs, Cos. Waterford and Wexford. 
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