VEGA-EXPEDITIONENS VETENSKAPLIGA ARBETEN. 463 
in our collection of sponges a small specimen coating a stone. 
This specimen is only 6 mm in height, expanding like a thin 
layer towards the sides. Carter also admits the affinity, saying: 
»Thus we have a group of sponges extending from the lowest 
form, viz. Hymeraphia vermiculata Bow. to Axinella O. S. etc.» 
IX. Geodinidee 0. 5. 
Genus Geodia Lm ek. 
Geodia Baretti Bow. 
Geodia Baretti, Bowerbank, Proceed. Zool. Soc., 198, pl. 11, 1872. 
Only three specimens from the arctic regions represent 
this species. ÅA specimen from the east-coast of Greenland is 
a gigantic one. The greatest diameter is 270 mm, the smallest 
200 mm. This specimen is furnished with one osculum, very 
deep and 40 mm in diameter. 
Habitat. East-coast of Greenland, depth 130—140 fathoms 
(380—581 5.); Mossel Bay, depth 2—53 fathoms (97 Sp.) 
