Mr. J. N. Ilalbcvt on Irish UydrachniJa. 9 



Locality. — Found in a pond at Fenagli, Co. Carlow, by 

 Mr. Denis R. Pack-Beresford, M.R.I. A., during the month 

 of August 1903. 



Type specimen deposited in the Dublin Natural Ilidtory 

 Museum (register no. 180, 1906). 



Arrhenurus Leuckarti^ Piersig. 



Both sexes of this mite were collected in the same locality 

 as the preceding species by Mr. Beresford. It is apparently 

 one of our rarest An'henuri, these being the only Irish 

 specimens that I have seen. Dr. George includes it in his 

 Lincolnshire list, and Mr. Soar reports it from the Norfolk 

 Broads. 



Arrhenurus Neumani, Piersig. 



This is another addition to the list of Irish Arrhemiri 

 published a few years ago*. I found several specimens 

 ( cJ and ? ) last year in Looscaunagh Lough in May, and 

 also in Glendalough Lake, Connemara, in the following 

 autumn. i\Ir. W. Williamson has taken it in Scotland 

 (Trans. Edinb. Field-Nat. and Micros. Soc. Session 1905- 

 190(")). 



Arrhenurus Stecici, Koenike. 

 1894. "Zur Hydrachuiden-Sjnonymie," Zool. Auz. xvii. p. 274, fig. 5. 



A male of this rare species occurred in a bog-pool almost 

 filled with Sphajnu?n near Ross, Co. Galway, in September 

 1905. This is the smallest species of the genus as yet found 

 in Ireland, my specimen measuring but 572 fi in length. 

 The colour was pale yellow, with two black blotches showing 

 through behind the epimera. 



Localities. — Up to the present time this species has been 

 recorded from Switzerland, where it was found in a similar 

 kind of locality (Moosseedorf-See bei Bern), Germany, and 

 Norway (1899). Dr. George has recorded it from Lincoln- 

 shire {' The Naturalist/ 1905, p. 25). 



Medeopsis crassipes, Soar. 



1904. " Two new British Water-Mites," Journ. Quekett Micros. Chil), 

 p. 107, fig. 2. 



Specimens of this interesting species were sent to me by 

 Mr. W. F. de Vismes Kane, who collected them, as long ago 



* ' Zoologisclier Anzeiger,' xxvi. 1903, p. 272. 



