DURIjSr& THE KKCEJSTT ARCTIC EXPEDITION. 121 



ACARIDEA. 



Mr. Murray's illaess, and subsequent death, have prevented me 

 from giving more than a sketch of the genera &c. found during 

 the Expedition, drawn up from disjointed notes furnished by him 

 a few weeks before his decease. In some cases two or three 

 forms are mounted on the same slide ; so, for convenience of 

 after reference, the numbers on the slides are here mentioned, 

 and where species were considered by Mr. Murray to be new, 

 the names attached by him on the slides are retained. All were 

 collected by Captain Feilden. 



BDELLIDiE. 



SCIRUS. 



Several examples of a species of this genus from lat. 82° 27', 

 June 1876 (No. 7). 



Bdella. 



Possibly two species. A rather large form from lat. 82° 30', 

 July 1876 (Nos. 3, 4, and 6), and a smaller form from Floeberg 

 Beach, June 1876 (B. calandroides, Murray, No. 5). 



HTDRACHNlDiE. 



~ Hydrachna. 



One example from the intestines of a Salmo caught in a lake at 

 Depot Point, lat. 82° 40', Oct. 1875 (No. 2), Another example 

 from the same locality, taken under the same circumstances, is 

 identified as Eylais ? sp. (No. 1). 



Oribatid^. 



Dam^us ; near GEN^icrLATirs, Koch. 



From lat. 82° 30'. Several examples (Nos. 8, 9, and 10). 



Oribata. 



Of this genus there are probably three species. One is identi- 

 fied as 0. Lucasii, Nicolet, from lat. 82° 80', June 1876 ; " common 

 under stones " (No. 10). Another, from lat. 82° 27', June 1876, 

 " extremely common under stones," is considered to be a new 

 species ; and the name " triangularis, Murray," is attached 

 (No. 11). And there are two other slides (Nos. 6 and 10) on 

 which are examples of the genus, from lat. 82° 27' and 82° 30', 

 with no further identification. 



LINX. JOURN. — ZOOLOaT, TOL. XIY. 9 



