JDen tblgemle fortegnelse er hovedsagelig kun et ud- 

 drag at mit tidligere arbeide, ..Oversigt over Norges Asri- 

 diae shnpJires-' *), hvortil henvises. De nye tillæg, jeg har 

 kunnet gjore, skyldes hr. stipendiat Huitttddt-Kaas, som 

 iljor skrallede ved Nordland. Finmarken og i Trondhjems- 

 fjorden og velvillig har overladt mig de indsamlede Mon- 

 ascidier til uudersogelse. Dette arktiske materiale frembød 

 meget af interesse, og da der ogsaa i de par sidste aar er 

 udkommet flere arbeider, der dels direkte Ixdiandler vor 

 tunicatfauna dels faunaer, som staar vor meget nær, vil de 

 fDls;ende tillæg og bemærkninger ikke være uden interesse. 



Jeg maa her taa lov til at udtale min tak til hr. pro- 

 fessor R. Hertwig, paa hvis laboratorium min lille af handling 

 er udarbeidet, for hans interesse og hjælp, samt hrr. dr. 

 Maas og stipendiat Huitfeldt-Kaas for deres beredvillige over- 

 ladelse af de af dem indsamlede arktiske Ascidiae simplices. 



2Iiuir]iPn, '^6de Noremher 1895. 



') Christiania Yi<l. .Solsk. Forhandl. l'^'.i;;, No. !1, pag. 1 — 10.9, tab. 

 I-IY. 



1 he foUowing list is [jrincipally only an extract from 

 my earlier work, ,.Oversigt over Norges Ascidiae simplices" ^) 

 (A Survey of the Ascidiæ siiiijilices of Norway), to which 

 the reader is referred. For the additions which I have 

 been enabled to make, I am inchdjted to Mr. Huitfeldt- 

 Kaas. who was dredging last year on the Nordland and 

 Finmark coasts and in the Trondhjem Fjord, and who has 

 kindly handed over to me for examination, the Monascidiæ 

 then collected. This arctic material presented much that 

 was of interest, and as, during the last few years, there 

 have also appeared several works partly dealing directly 

 with the Norwegian tnnieate fauna ]3artly with faunæ that 

 are very nearly allied to the Norwegian, the following 

 supplement and reiuarks will not be devoid of interest. 



I must here be allowed to express my thanks to Pro- 

 fessor R. Hertwig, in whose laboretory my little treatise 

 has been prepared, for his interest and help; and also to 

 Dr, Maas and Mr. Huitfeldt-Kaas for so readily submitting 

 to me arctic Ascidia' simplices collected liy tliem. 



21iiii/<-]i. 2oth Noremher, 1895. 



') Christiania Vid. Selsk. Forhaiidh 18>i;i, No. >», 

 I-IV. 



pp. 1 — 10.'>, Pl. 



Den norske Nordlnivsexpedition. Johan Kiær: Fortegn, over Norges Ascidiæ simplices. 



