COLLECTED BY THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 425 



The following list gives the species in the collection in their systematic 

 order : — 



CALCAREA. 

 HETEROC(ELA. 



Family Grantiid^e. 



Leucandra pumila (Bowerbank). 

 Leucandra crambessa Haeckel. 



NON-CALCAREA. 



Order HEXACTINELLIDA. 



Sub-order HEXASTROPHORA. 



Family Aphrocallistid^e. 

 Aphrocallistes beatrix Gray. 



Order TETRAXONIDA 



Grade Tetractinellida. 



Sub-order ASTROPHORA 



Family Geodiid^e. 



Geodia littoralis n. sp. 

 Geodia libera n. sp. 



Grade Monaxonellida. 



Sub-order HADR0MER1NA. 



Family Tethyid^e. 



Tethya lyncurium (Linn.). 



Family Clionid^e. 

 Cliona lobata Hancock. 



Family Spirastrellid^e. 

 Spirastrella purpurea (Lamarck). 



Family Polymastiid,e. 



Polymastia littoralis n. sp. 



