Hood — On the Rotifera of the County Mayo. 689 



lorica, and by the s3Tnmetrical toe. A few examples in a moss- 

 pool, high up on a hill, near Westport, 1891, '92. 

 Bistyla gissensis, Eckstein {op. cit., p. 41). I found the species rather 

 abundantly in two lakes, near "Westport, associated with 

 Conochilus unicornis; 1892, '94. 



D.Jlexilis, Gosse. I met with this corrugated species frequently in 

 bogs, near "Westport and Castlebar, 1891, '92. 



D. hipara, Gosse. H. and G., SuppL, p. 43, pi. xxxi., 39. A number 

 of examples occurred in the mill-pound, at Westport, 1894. 



Monostyla cornuta, Ehrenb. More or less ahundant all round "West- 

 port. 



M. mollis, Gosse. H. and G., SuppL, p. 44, pi. xxxi., 41. A few 

 examples occurred in the mill-pond, at Westport, 1891 ; and in 

 a marsh-pool, S.-E. of Westport, in 1892, '94. 



M. bulla, Gosse. Numerous in two small lakes, near Westport, and 

 in a marsh, at Castlebar, 1889, '92. 



M. lordii, Gosse. A number of examples in a quarry pond, near 



Westport, 1894. 

 Colurus dejiexus, Ehrenb. Erequent around Castlebar and Westport. 



C. uncinatus, Ehrenb. A few examples from a marsh on a hill, near 



Westport, 1891, '92. 

 C. caudatiis, Ehrenb. Plentiful in lakes, marshes, and bog-pools 



1889, '91. 

 C. dactylotus, Gosse. ISTumerous in the lagoon and tide-pools at 



Westport, 1892, '94. 

 C. ccdopinus, Gosse. I collected a few examples from a tide-pool in 



Clew Bay, 1889, '91. 

 G. dumnonixcs, Gosse. H. and G., SuppL, p. 45, pi. xxxi., 44. A few 



examples of this species occurred in the lagoon at Westport 



Harbour in 1889 ; and again in 1894. 



C. grallator, Gosse. H. and G., SuppL, p 45, pi. xxxi., 43. Ex- 

 amples occurred in water from a tide-pool in Clew Eay, West- 

 port, 1894 



C. dieentrus, Gosse. H, and G., SuppL, p. 45, pi. xxxi., 42. Common 

 in the lagoon, and in tide-pools in Clew Bay. 



C. micromela, Gosse. H. and G., SuppL, p. 45, pi. xxxi., 45. Common 

 in salt and brackish waters of the tide-pools, Westport, 1889, '92. 



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