67 



Length of prorachidian Ì 

 Edge of pinna | 



Greatest breadth of pinna 21 



Height of pinna 18 



Number of pairs of pinnae 30 



Locality Doubtful Sound, on the west coast of the South Island 

 of New Zealand, in 40 fathoms. 



Remarks. The colour appears to have been pink. A comparison 

 with specimens of S. grande , both larger and smaller than the above, 

 brings out differences in the following features: 



a) General form of vane, which in the Australian species is long, with 

 parallel sides. 



b) The proportions of vane and calamus. 



c) The form of the pinnae. 



dj The number of rows of antozooids, which in the Australian species 

 are in 4 or 5 rows on each face of the pinna. Others occupy a com- 

 paratively broad area. 

 e) The size and arrangement of the spicules in the pinna. 

 f j The form of the large calcareous bodies in the deep tissues of the 



peduncle. 

 g) The extent of the cushion of siphonozooids which in S. grande is 



much more limited. 

 h) The arrangement of the rachidian siphonozooids, which in S. grande 

 forms a narrow median band of scattered zooids extending along 2/3 

 of the length of the rachis. 



I am preparing an illustrated account of this species, which is the 

 second only of the genus. 

 Dun e din, July 30, 1906. 



7. Über zwei neue in der Schweiz von Herrn C. Walter (Basel) erbeutete 



Wassermilben. 



Von Dr. Sig Thor Norwegen). 



eingeg. 17. September 1906. 



Der Aufforderung der Herren Professor Dr. F. Zschokke und 

 Cand. C. Walter (Basel) folgend, beschreibe ich hier kurz zwei neue 

 Lebertia-Avten aus der Schweiz. Ich widme die eine derselben {Neo- 

 lebertia ivalteri n. sp.) Herrn "Walter, der sich mit lebhaftem Interesse 

 und mit sehr gutem Erfolge die genauere Erforschung der schweizerischen 

 Wassermilbenfauna als Aufgabe gestellt hat. 



Die mir zur Untersuchung, wesentlich als Dauerpräparate geschick- 

 ten Exemplare gehören den beiden Untergattungen Neolebertia Sig Thor 



