342 JOTTINGS FROM SYDNEY UNIVERSITY BIOLOGICAL LABORATORY. 



I am indebted to Mr. Chas. Chilton, B.A., of Port Chalmers, 

 New Zealand, for specimens of this very interesting Turbellarian, 

 obtained from deep wells in two localities about a hundred miles 

 apart in the province of Canterbury. All are devoid of eyes and 

 completely destitute of pigment. They are of comparatively large 

 size, the largest being nearly an inch and a half in length. A 

 detailed account of them will be published shortly. 



III. A new genus of the Temnocejihalece. 



Temnocephala is such an aberrant member of the Platyhelminthes 

 that the discovery of a related form is of considerable interest. 

 In Temnocephala there are at the anterior end of the body a 

 number (four to six) of long slender tentacles ; at the opposite 

 end a large ventral sucker. In the new genus, which I 

 propose to call Actinodactylus, twelve tentacles are present 

 distributed along the lateral margins of the body and radiating 

 outwards from it. A ventral sucker occupies the same position as 

 in Temnocephala. Eyes are completely absent ; but in most other 

 respects the resemblance to Temnocephala is fairly close. The 

 new form occurs in the branchial cavities of Engceiis fossor, the 

 burrowing land-crayfish of Gippsland. 



Postscript. — Since the above was written I have had the oppor- 

 tunity of examining living specimens of Actinodactylus, and 

 certain features not recognised in the alcohol specimens separate 

 the new form so widely from Temnocephala that I do not think 

 that it can be included in the same family. An account of this 

 remarkable new form will be published in the Macleay Memorial 

 Volume. 



