CuiT/rON. — Crustacva of the Kerniadec hlaiuh. 573 



The type spocinu'tis w^ere raised by Sars from dried nuid from the neigh- 

 bourhood of Duiiedin, but the speeies doubth'ss occurs more widely in 

 New Zealand. 



I have several specimens of another Ostracod with the shell light- 

 coloured, with 3 or 4 irregularly scattered patches of black or very dark- 

 blue pigment on each valve. These I have not been able to identify. 



Subclass BRAN( 'HIOPODA. 



Order CLADOCERA. 



Daphnia thomsoni G. 0. Sars. 



Daphnia similis Thomson, Trans. N.Z. Inst., 16, p. 240, pi. 13, figs. 6-9, 

 1881. Daphnia thomsoni G. 0. Sars, Fresh-water Entomostraca of 

 N.Z., Vidensk. Seisk. Skr., 1, M.-N. Kl., No. 5, p. 5, 1894 p Stebbing, 

 Ann. Sonth African Mus., 6, p. 489, 1910. Daphnia similis Claus 

 var. thomsoni Richard, Ann. Sci. Nat., ser. 8, vol. 2, p. 217, pi. 25, 

 figs. 13, 14, 1896. 



Numerous specimens from fresh water in swamps at Denham Bay ; 

 collected on 20th June, 28th July, and 28th September, 1908. 



I have been able to compare these specimens with some from the type 

 locality, Eyreton, North Canterbury, New Zealand, and can detect no 

 difierence except that the Kermadec specimens have both the head and 

 the body a little less broad. In them, too, the spine of the carapace is 

 longer than in most of my New Zealand specimens, but the length of this 

 varies, and, according to Sars's observations, is longest in specimens of 

 the earliest generations, in these attaining nearly half the length of the 

 carapace, as in the Kermadec specimens. It will be noticed that Mr. 

 Oliver's collections were all made early in the season, the first on the 20th 

 June. 



The species is known both from New Zealand and from the Cape of 

 Good Hope. 



Dr. Jules Richard considers D. similis Thomson simply a variety of 

 the widely distributed species of the same name earlier established by Claus. 



Subclass COPEPODA. 



Order EUCOPEPODA. 



Numerous specimens of a Cyclops were obtained in the fresh waters 

 of the swamp at Denham Bay, and also from among weeds in Green Lake, 

 but I have not yet been able to identify them satisfactorily with any of the 

 numerous species of this genus known from Austraha and New Zealand. 



A few specimens of a Pontella were washed up on Flat Beach, Sunday 

 Island, on the 6th June, 1908. The species has not yet been determined. 



In the collection are also two parasitic Copepoda, one apparently a 

 Lcpeophtheirus, taken on the hapuka ; and the other, which appears to 

 belong to Pandarus, on a shark. Neither species satisfactorily identified. 



