Guascotr—A List of some of the Rotifera of Ireland. 35 
dEcistes velatus (Gosse). 
[The Rotifera, vol. i. p. 83, Pl. D. fig. 8.] 
I have met with this species, which is noticed as of rare occur- 
rence by Mr. Gosse, frequently, but in no instance has it attained 
to any remarkable size or striking beauty. Always wandering, 
the corona is usually maintained expanded, and is of somewhat 
square outline. The very opaque back eyes, set widely apart in 
the neck, close to the corona, arrests the attention at once, as does 
also the very dark contents of the intestine (?), which seem to be 
invariably present. The creature in all respects resembled the 
figure, and in some instances the form of the trophi was quite 
distinct. 
Habitat.—A. pond, a bog, Co. Wexford. 
Philodina erythrophthalma, Ehrenberg. 
[The Rotifera, vol. i. p. 99. ] 
Frequent. Cos. Wexford and Waterford. 
' Philodina roseola, Ehrenberg. 
[The Rotifera, vol. i. p. 99, Pl. IX. fig. 4. ] 
Frequent. 
Habitat.—Ponds and ditches, Cos. Wexford, Waterford and 
Kerry. 
Philodina citrina, Ehrenberg. 
[The Rotifera, vol. i. p. 100, Pl. IX. fig. 6]. 
Not uncommon. The truncate body and abrupt foot sufficiently 
mark off the species from its congener. Cos. Kerry and Wexford. 
Philodina megalotrocha, Ehrenberg. 
[The Rotifera, vol. i. p. 101, Pl. IX. fig. 7.] 
Rare. 
Habitat.—Ponds and streams, Co. Wexford. 
Philodina aculeata, Ehrenberg. 
_ [The Rotifera, vol. i. p. 101, Pl. IX. fig. 5.] 
This species is apparently subject to great variation with 
regard to the development of the spines, and also with respect to 
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