PLATE IV 



Fig. i. Conopora pauciseptata. Type specimen from St. 2493. Anterior 



side of the fragment. Nat. size. 

 Fig. 2. Conopora pauciseptata. Type specimen from St. 2493. Posterior 



side of the fragment. Nat. size. 

 Fig. 3. Errina antarctica from St. 2200, Balleny Group. Living colony 



of the stout type, the median part incrusting the dead stem of an 



old, dead colony. Nat. size. 

 Fig. 4. Errina antarctica from St. 2200. Fragment of a dead colony of 



the common, flabelliform type with dichotomic ramification. Nat. 



size. 

 Fig. 5. Errina antarctica from St. 2200. Fragment of a dead, densely 



branching colony of the slender type. In spite of the prolific 



(subdichotomic) ramification and the bushy appearance anastomoses 



very seldom occur. Nat. size. 

 Fig. 6. Errina antarctica from St. 2200. Basal part of a great dead colony 



of the common, flabelliform type with subdichotomic ramification. 



Nat. size. 



