1893.] OVERSIGT OVER NORGES ASCIDIAE SIMPLICES. 5 



Gunnerus, J. E. Søe-Pungen (Tethyum sociabile) fuldstæn- 

 dig beskreven. 



(Det Trondhjemske Selskabs Skrifter. 3die Del. 

 Kjøbenhavn 1765.) 

 Hancock, Albany. On the larval State of Molgula; with De- 

 scriptions of several new species of simple ascidians. 



(Annals and Magazin of Nat. History. 4. Ser. 

 Vol. VI.) 



Heat, Alice. On the Structure of the Polycarpa and the 

 Endocarp in the Tunicata. 



(Proceedings of the Lit. a. Philos. Soc. of Liver- 

 pool. 1883. Pag. 185.) 

 Heller. 1. Untersuchungen tiber die Tunicaten d. Adri- 

 atischen Meeres. 1. Abtheil. 



(Denkschr d. kais. Akad. d. Wissenschaften. — 

 Math. Naturw. Classe. Bd. 34. 2. Abth. Wien 

 1875. Pag. 1.) 



2. Untersuch. tiber d. Tunicaten d. Aclriat. Meeres. 



2. Abtheil. 



(Ibidem. Bd. 34. 2. Abth. Wien 1875. Pag. 107.) 



3. Untersuch. tiber d. Tunicaten d. Adriat. Meeres. 

 3. Abtheil. 



(Ibidem. Bd. 37. 1. Abth. Wien 1877. Pag. 241.) 



— 4. Beitrage zur naheren Kenntniss d. Tunicaten. 



(Sitzungsberichte d. math. -naturw. Cl. d. kais. 

 Akad. d. Wissensch. Bd. 77. 1. Abth. Wien 1878. 

 Pag. 83.) 



5. Die Crustaceen, Pycnogoniden u. Tunicaten d. 

 k. k. oesterreich. -ungar. Nordpol-Expedition. 



(Denkschr. d. k. Akademie d. Wissensch. Math.- 

 Naturw. Classe. Bd. 35. Wien 1878. Pag. 25.) 

 lerdman, W. A. 1. Notes on British Tunicata with De- 

 scriptions of new Species. I. Ascidiidae. 



(Linnean Society's Journal. Zoology. Vol. XV. 

 1880. Pag. 274.) 



— & Sorby, C. 2. On the Ascidians collected on the 



