6 
terised by their large dimensions, as the greater part of them 
measure 14 to 2 inches in height. 
The habit of the white and shiny zoarium is very variable. 
In some the breadth is about the same as the height, in others 
the spreading branches are short and few in number so as to form 
a more slender colony. It occurs also that the stem is rather long. 
At first I supposed that some of the present specimens might belong 
to an other undescribed species; however the fibro-reticulate front- 
side and the undulating ridges on the dorsal surface convinced me 
that they present only the characters of varieties. 
Oeccasionally the branches are somewhat irregularly divided. It 
may also be noticed that the quincuncial arrangement of the ori- 
fices is not always evident. 
Ooecia on the dorsal surface few in number, large, ovate, 
punctate. 
Locality. Barents-Sea. 71° 23’ N. lat., 49° 38° E. long. 67 fathoms. 
Habitat. On shells and stones. 
Family LICHENOPORIDAE. 
Genus: Lichenopora , Defrance. 
7. Lichenopora verrucaria. Fabr. 
SYNONYMS: 
Madrepora verrucaria. Fabr. Fauna Groenlandica 430. 
Discoporella verrucaria. Smitt. Öfv. af. k. Vet. Akad. Förh. 1866, 
405 seq. 
Busk. B:’ M.'\Öat./ TEE 31. 
Lichenopora verrucaria. Smitt. Bryoz. Nova Zembla. Öfv. af. k. Vet. 
Akad. Förh. 1878 n°. 3, 15. 
Zoarium rather subconical than convex; the central part of the 
colony, destitute of zooecia, is very small; zooecia of different 
dimensions; the pointed processes well developed. Not abundant. 
Locality. Barents-Sea 72°5' N.lat., 37°57'E. long. 140 fathoms. 
72° 32,3 N. lat., 36° 39,5 E.long. 128 fathoms. 
Habitat. On the stems of Hydroids and on Ascidians. 
