13 
Smitt. form. 2. Öfv. k. Vet. Akad. Förh. 1867. 
364 seq. 
Idem. Floridan Bryozoa. kongl. Svenska Ve- 
tenskaps-Akad. Handl. 1872—73. pt. II, 7. 
Flustra lineata. Linn. Syst. ed. 12. 1301. 
Johnst. Brit. Zooph. ed. 2. 349. 
Fabrieius. Fauna Groenlandica. 437. 
The generally rounded spines vary in number and size. Either 
there are 8, or the number may reach to 12. In the first case 
all the spines are about equal in size, in the other case they bend 
inwards and are not as elongated as those placed at the top of the 
zooecium. The rib on the frontside of the ooecia is very distinc- 
tive. Disposition of the avicularia as usual. Rare. 
Locality: Barents-Sea. 77° N. lat., 45° 48'E. long, 110 fathoms. 
Habitat: On Aseidians. 
Family CRIBRILINIDAE. 
Genus: Cribrilina, Gray. 
17. Cribrilina annulata. Fabr. 
SYNONYMS: 
Bscharipora annulata. Smitt. Öfv. k. Vet. Akad. Förh. 1867. Bihang 
IV. 4, 53. 
Lepralia annulata. Johnston. Brit. Zooph. ed. 2, 312. 
Busk. Br. M. Cat. II, 76. 
Cellepora annulata. Fabrieius. Fauna Groenlandica 436. 
Zoarium forming an almost eircular crust. Zooecia generally elon- 
gated and narrowed towards the base. Three marginal spines, of 
which the two lateral are longer than the middle one. 
Ridges on the zooecia quite pronounced. Rare; only one single 
specimen. 
Locality: Smeerenburg. # 79° 40' N. lat., & 12° 10' E. long. # 25 
fathoms. 
Habitat: On marine plants probably Confervae, 
