428 



Fam. Syconidae. 



Sycon ciliatum Risso. 

 Grantia arctica Haeck. 

 Grantia mirabilis Frstdt. 

 Grantia capillosa 0. S. 

 Grantia pentiigera Haeck. 

 Grantia utriculus 0. S. 

 Amphoriscus glacialis Haeck. 

 Ebnerella Schulzei Breitfss. 



Fam. Leuconiidae. 

 Leuconia Egedii 0. S. 



Myxospongida. 

 Fam. Halisarcidae. 

 Halisarca Dujardinii Johnst. 



Besides the species, mentioned in the following from: "Die 



zweite deutsche Nordpolarfahrt", still a few sponges have been 



recorded by 0. Schmidt in this work, but they are indetermined 



and indeterminable; they are the following: 



Cacospongia sp. 



Chalinula sp. (may be some Axinellid, as Schmidt 



says it has "einspitzige Nadeln".) 

 Reniera sp. 

 Isodictya infundibuliformis (probably = Tragosia 



Sluiteri Vosm.) 

 Desmacidon anceps. 

 With regard to this latter species, Thiele has shown (Arch^ 

 für Naturgesch., 1903, 388) that Desmacidoti anceps in reality not 

 exists, but is a mixtum of different species; judging from the 

 spicules figured by Schmidt (I.e. PI. I) none for East-Green- 

 land new species seems to be represented in it. 



