1893.) 0VERSIGT OVER NORGES ASCIDIAE SIMPLICES. 



9 



(Mittheilung. aus d. zoolog. Station zu Neapel. 

 Bd. IV. Leipzig 1883.) 

 Trauste dt. 5. Ascidiae simplices fra det stille Ocean. 



(Videnskab. Meddel, fra Nat. Foren, i Kjøbenhavn 

 for 1884—86. Kjøbenhavn 1884-87.) 

 6. Kara-Havets Søpunge (Ascidiae simplices). 



(Dijmphna-Togtets zool. botan. Udbytte. Kjøben- 

 havn 1887.) 



Ver ri 11, 0. E. 1. Descriptions of some imperfectly known 

 and new Ascidians from New England. 



(American Journal of Science and Arts. Ser. III. 

 Vol. I. 1871.) 



2. Eecent Adclitions to the Molluscan Fauna of 

 New England. 



(Ibidem. Ser. III. Vol. III. 1872.) 



3. Notize of recent Additions to the Marine In- 

 vertebrata of the Northeastern Coast of America. 



(Proceedings of the United Stat. Nat. Mus. Vol. 

 II. 1879.). 



— &B,athbun. 4. List of Marine Invertebrata from 

 the New Englands Coast. 

 (Ibidem. Vol. II. 1879.) 

 i V agn er, N. Die wirbellosen des weizeu Meeres. Bd. I. 

 Leipzig 1885. 



