682 Proceedings of the Royal Irish Academy. 



D. silpha, Gosse. H. and Gr., Supplement, p. 30, pi. xxxi. 22. I 

 found five examples in the old quarry at Westport in 1894, two 

 on a first and three on a second visit. This species does not seem 

 yet to have been met with out of Ireland. An example from 

 county Leitrim, collected by my son, furnished Mr. Gosse with his 

 description in 1885. 



B. giraffa, Gosse. I found two specimens in vegetable debris from a 

 lake near Westport in 1889, and again two or three in a marsh- 

 pool near Castlebar in 1891. 



I), catellina, Ehrenb. Many examples of this species occurred among 

 seaweeds in a pool of brackish water on Lord Sligo's policies, 

 filled at spring- tides, June, 1891. 



D. biraphis, Gosse. This species was very numerous in a shallow 

 pool, 2 or 3 inches deep, 2^ miles from Westport, 1892. The 

 pool contained Chara, together with a great quantity of diatoms 

 and desmids. The stomachs of the Eotifers were packed with 

 green vegetable matter. 



D. permoUts, Gosse. A few examples amongst Sphagnum, thickly 

 studded with Oecistes pilula, in a bog-pool, 2\ miles E. of "West- 

 port, 1892, '94. This species was first described by Mr. Gosse 

 from specimens sent him from Dundee by me. 



Distemma raptor, Gosse. This predacious species was first found by 

 me in the estuary of the Tay, in 1883, and I was pleased to 

 meet with it again in the west of Ireland in 1889. A number 

 of examples occurred in the lagoon at Westport Harbour in that 

 year, and again in 1891 and 1892, associated with shoals of a 

 little shrimp -like crustacean {My sis sp.) 



D. platyceps, Gosse. H. and G., Suppl., p. 31, pi. xxxi., 25. I 

 sent Mr. Gosse a few examples of the species, till then un- 

 known, from water taken from a tide-pool at Carnoustie, Forfar- 

 shire, in 1886. A few examples occurred in a tide-pool at Clew 

 Bay in 1889. 



Triphylus lacustris (Ehrenb.). Cf. H. and G., Suppl., p. 19, pi. 

 xxxii., 16. This interesting Rotifer closely resembles Notops 

 clavtdatus, the most striking difference being that it has two 

 small frontal eyes, whereas the iN'otops has one large eye placed 

 on the dorsal side of the neck. I found this large and handsome 

 species in 1894, in a bog two miles east of Westport. It in- 

 habited a hole filled with water of a port-wine colour, and so 



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