Hamjukt — The A carina dJ' Ike Seashore. 139 



Eupodes variegatus Kcjch \ ai. halophilus iiov. 



Ill tlie Serralus zone at Aidl'ry llieve ucciirs a I'uini of EiipodeK wliicli 

 seems to be a variety of the counuou European species E. varicycdus Kocli. 

 The general structure is tlie same as in the typical form. The ovigerous 

 female measures about GGG^u in length, and the breadth at the shoulders is 

 about olO(U. ("olour pale rose. It differs from the typical form in the 

 shorter body hairs ; the group at extremity of abdomen number six or seven 

 hairs, the longest measuring not more than 70ju. All hairs minutely setose. 

 The first pair of legs measure about 666/.(, and the remaining three pairs are 

 a little longer and more slender than in the type, and tlie femora of the last 

 pair are less thickened. In the male, of whicli only one specimen was found, 

 the body is smaller tlian in the female, the length being 5o0/i. The size is 

 apparently somewhat larger than in tlie type. A male of E. variegatus, 

 found in the west of Ireland, measures 400/x. 



Chromotydaeus ovatus (C. L. Koch). 



1838 Penthaleus ovatus 0. L. Koch 28, Fasc. 18. 1886 Canestrini 23, 

 p. 225. 1891 Berlese 2, Ease. LX., n. 2. 1912 Sig. Thor 45, p. 237. 1915 

 Halbert 25, p. HI. 



The occurrence of this species under stones on the seashore at Mulranny 

 has already been recorded (25j, and I have since found it commonly as an 

 intertidal species at Ardfry, iu the Pelvetia and Spiralis zones. It has not 

 been found at Malahide, so that it may possibly be a species of western range 

 in Ireland. The specimens would seem to be uniformly longer than the 

 Italian form; both Berlese and Canestrini record the length as 400//, while 

 the Irish shore specimens are about 640/j in length, and the breadth varies 

 from 410/i to 460,u. Dr. Berlese, who has seen the Irish form, says it is the 

 present species. 



Thor records its occurrence on the western shores of Norway in the 

 Balatius balanoides zone, and under Fiimis vesiculosus. 



Halotydaeus hydrodromus (Berl. et Trouess). 



1889 Notophallus hydrodrovius Berlese et Trouessart 20, p. 21. 1891 

 Ilalotydacm lujdrodromus Berlese 2, Ease. Lx, n. 10. 1915 Halbert 25, ]'. 1 11 . 

 1918 Hull 26, p. 33. 



Usually a common species on the seashoi'e, ranging fioin ihe IVlvetia 

 down to the Serratus zone at Malahiile and Ardfry. Though less agile llian 

 Rhaijidia halophila, it is almost as great a rover on the rock surfaces when 

 the tide recedes ; and it also occurs in colonies between flakes. On the west 



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