500 Hector F. E. Jungersen. 



Prof. Théel, Director of the Riksmuseum at Stockholm; it turned 

 out that every probability points towards Varangerfjord as its real 

 home Ч 



Thus, so far, this species is only recorded from two widely se- 

 parated areas north of the polar circle, which areas may have in 

 common certain hydrographical features, f. inst. a certain amount 

 of temporary oscillation of cold and warm bottom temperatures, 

 features the probability of which I only venture to suggest, as I have 

 no positive knowledge about the real facts. 



Fam. Umbellulidœ Kölliker, 



Umbellula encrinus (L.). 



Isis encrinus Linné: Systema naturæ Ed. X, 1758, p. 800. 

 Pennatula encrinus Pallas: Elenchus Zoophytorum, 1766, p. 355. 

 Vorticella encrinus Linné: Syst. nat., Ed. XII, 1767, p. 1317. 

 umbellula Cuvier: Tableau élémentaire de l'hist. nat., 1798, p. 675. 

 Umbellularia groenlandica Lamarck: Animaux sans vertèbres. Ed. I, 



Vol. II, 1801, p. 436. 

 Umbellula encrinus -{- U. miniacea -}- U. pallida Lindahl: Om Pen- 



natulidslägtet Umb. Cuv. К. Sv. Vetensk. Ak. 



Hdlg., Vol. XIII, 1874, No. 3, Pi. I— III. 



— Lindahli Kölliker : Die Pennatulide Umbellula u. zwei. n. 



Typen d. Alcyonaria. Festschr. z. Feier d. 25 jähr. 

 Best. d. Phys. Med. Ges. in Wurzburg, 1874, p. 11. 



— encrinus Lütken: Manual of the N. Hist, etc., XX, 1875, 



p. 186, No. 12. 



— — V. Marenzeller: Die Coelent. etc. österr.-ung. Nordp.- 



exp. Denkschr. Ak. V^iss. Wien, Vol. XXXV, 1878, 

 p. 377. 



1 No other information could be obtained than that of the label, running thus: 



^^Virgularia af finis. 



Bergen. Danielssen". 



This of course does not prove that the locality is "Bergensfjord". In my 

 opinion it simply means that this specimen has been acquired from Dr. Danielssen, 

 Bergen. Dr. D., of Bergen's Museum, had collected a lot of specimens in Varanger- 

 fjord 1857; and in 1877, in describing and figuring the species, he only gives this 

 fjord as its home. Later he never mentions its occurrence anywhere else; and if 

 nevertheless a single specimen should have been found in the immediate vicinity of 

 Bergen, it must seem extremely improbable that the only proof of this occurrence 

 should by D. himself be sent awaj' to Sweden and not be preserved in the Bergen 

 Museum, where he tried to store as complete a representation as possible of the 

 marine fauna of Norway. Moreover the specimen in question is a fine and typically 

 developed Virg. affinis, in every respect fully like other large samples from Varan- 

 gerfjord, still kept in the Bergen collection. 



