Mr. J. N. Hal belt on Irish Ilijdrnchnida. 11 



*Laminipes scaurus (Kocn.). 



1892. " Anmerkungeu zu Pier.figs Beitragen zur IlydraclinidenkundL-," 

 Zool. Auzeigor, xv. p. 1^06, iig. 1. 



Several males taken in bog-pools on lower slopes of Braguti 

 ]\IouMtain, between the counties Monaglian and Tyrone, by- 

 Mr. W. F. Je Visnies Kane in July 1900. 



Localities. — Norway and Germany (' Tierreicli '). 



^Tiphj/s mutatus (Piersig). 



1893. Acerais brevipes, Zool. Anz. xvi. p. 394. 



1901. Tiphys mutatus, Piersig (noui. uov.), Tierreich, p. 241. 



Two specimens ( ? ) taken at Glenavy, on the shore of 

 Lough Neagh, June 1902. The male appears to be unknown. 



'^ Fiona stjordaliensis (Sig. Thor). 



1900, " Ilydracbnologisclie Notizen, V.," Nyt Mag. Naturvid, x.x.xviii. 

 pp. 375-378, pi. xvii. tigs. 21-24. 



This species is allied to P. nodata, Miiller, and P. cojitro- 

 versiosa, Piersig, but differs sufficiently from both in the 

 structure of the genital area, palps, and especially in the 

 armature of the terminal segment of the third pair of legs in 

 the male. The species was first described in 1896 by 

 Dr. Thor, and was supposed by Dr. Piersig to be synonymous 

 with P. controversiosa, but the more detailed description 

 published in the above reference clearly shows the distinctions 

 between the species. 



The only Irish specimens examined were taken by 

 Mr. W. F. de Vismes Kane in Drumreaske Lake^ Co. 

 Monaghan. 



^Pamsus Michaeli, Koen. (PI. II. fig. 6.) 



1896. Zool. Anzeiger, xix. p. 356. 



When in the west of Ireland in the spring of 1901 I 

 found an Hydrachnid of the genus Panisus aaiongst water- 

 plants in a small stream which flows into the sea at the head 

 of Ballysadare Bay. On examination it agreed closely with 

 the description of P. Mickaeli, Koenike, except that the 

 chitinous marginal plates of the dorsal surface numbered four 

 on each side in my specimen, instead of five, as recorded for 

 P. Michaeli. On sending drawings of the mite to Dr. Koenike, 

 lie was good enough to assure me that my species is identical 

 •with P. Michaeli. There are in reality only four marginal 

 plates on each side in that species ; the statement that there 



