The Norwegian North-Atlantic Expedition. 



Preliminary Report*) 



by 

 JL>. C Dauielssen. 



Alcyonida. 



Vöringia mirabilis n. g. et n. sp. 



Generic characteristics. 



The Zoanthodem arborescent. The stem coriaceous, cylin- 

 drical; has strongly marked, wide, longitudinal ducts, and a 

 membranaceous basal part. The branches arranged around the 

 stem, and thick; these branches, again, closely beset with branch- 

 lets, that carry a greater or smaller multitude of polyps, 

 which are retractile. The stem, and the branches, rich in 

 calcareous spicules of varying forms. The polypes on the body, 

 as well as on the tentacles, are furnished with closely-set spicules. 

 In the connective tissue of the gullet, spicular series. Septa non- 

 calcareous. 



Specific characteristics. 



The Zoanthodem measures up to 200 mm in height and, 

 down towards the basal part, up to 80 mm in circumference. The 

 branches arranged around the stem, thick; closely beset with 

 branchlets, which carry such a large multitude of polyps that the 



*) The complete Memoir on the Alcyonoids collected during the expedition 

 is in course of preparation, and will be accompanied with about 18— 20 

 Plates. Its publication may be expected about May or June of the 

 approaching year. * 



D. C. Danielssen. 



Nyt Mag. f. Naturv. XXX. I. 6 



