On Cyclestheria hislopi (Baird), 



a new Generic Type of bivalve Phyllopoda. 



By 



G. 0. Sars. 



(Read at the Meeting held 26th November 1886. — Section for Mathematics and 



Natural Science.) 



Introdiiction. 



Through the kind intervention of Mr. Lumholtz, I was 

 enabled also in the course of the past summer to prosecute 

 my experiments in artificial hatching of Entsmostraca from 

 dried Australian mud, commenced already in 1884. 1 On the 

 29th October last year (1885) I received from Mr. Archer, at 

 Kockhampton, North Queensland, a considerable material of dried 

 mud, collected from different localities in the neighbourhood of 

 that town. The several parcels were carefully packed in papers 

 and furnished with labels indicating the localites, and in most 

 cases also the dates, when and where the mud hacl been tåken. The 

 mud, when received, was rather similar in condition to that 

 formerly sent from the Gracemere Lagoon, having very niuch 

 the character of stony masses, which could only with great diffi- 

 culty be broken in pieces. 



The unusually cold weather prevailing during the spring of 



See my Paper „0n somc Australian Cladocera, raised from dried mud." Chri- 

 stiania Vid -Selsk. Forhandl. 1885. 



1* 



