14 b Canadian Arctic Expedition, 191S-18 



LITERATURE 

 Amback-Christie-Linde, A. 



1921. On the reproductive organs of the Ascidian Kukenthalia borealis (Gottschaldt). 

 Proc. Zool. Soc. Lend. 1921, pp. 187-196. 

 Bjerkan, P. 



1908 a. Ascidien. Report of the Second Norwegian Arctic Expedition in the "Eram" 



1898-1902. No. 14. Kristiania, pp. 1-12, 1 pi. 

 1908 b. Die Ascidien des nordliohen Norwegens. Tromso Mus. Aarshefte 25, pp. 49-118. 

 Ipl. 

 Bonnevie, K. 



1896. Ascidiae simplices and Ascidiae compositae from the North Atlantic Expedition 

 The Norwegian North Atlantic Exped. 1876-1878. Zool. Vol. -VII, pp. 1-16, pi 

 III-IV. 

 Hartmeyer, R. 



1899. Die Monascidien der Bremer Expedition nach Ostspitzbergen im Jahre 1889. 



Zool. Jahrb. Syst. XII, pp. 453-520, pi. 22-23. 

 1903. Die Ascidien der Arktis. Fauna Arctica, Bd. Ill, pp. 93-414, pi. IV-XIV. Jena. 



1910. Die Ascidien der Danmark Expedition. Dan. Eksped. til Gronl. Nord. 1906-08, 

 Bd. V, Nr. 3, Kobenhavn, pp. 227-236. 



1911. Zur verbreitung nordischer Ascidien. Sitzungsber. der Gesell. natm'f. Freunde, 

 Berlin, Jahr. 1911, No. 10, pp. 439-440. 



1915. Alder und Hancocks britische Tunicaten. Mt. Zool. Mus. Berlin, Bd. VII, Ht. 

 3, pp. 30.^-344. 



1919. Ascidien aus dem Barentsmeer. Arbeit, d. deutsch. wissenchaft. Kommiss. f. 



die Intern. Meeresfors. B. Biol. Anst. auf Helgoland. Nr. 25, pp. 125-132. 

 1921. Studien an westgronlandischen Ascidien. Meddel. om Gronland, Bd. I^XII, 

 pp. 1-137. 

 Huitfeldt-Kaas, H. 



1896. Synascidiae. Norwegian North-Atlantic Exped. 1876-1878. Zool., Vol. VII, pp. 

 1-27, pi. J. 2. 

 Huntsman, A. G. , 



1912. Ascidians from the coasts of Canada. Trans. Can. Inst., Vol. IX, pp. 111-148. 



1913. Holosomatous Ascidians from the coast of western Canada. Contr. Can. Biol. 

 1906-10, pp. 103-185, pi. X-XXI. 



1921. Age-determination, growth and symmetry in the test of the Ascidian, Chelyosoma. 

 Trans. Roy. Can. Inst., Vol. XIII, No. 1, pp. 27-38, pi. 1. 



1922. Results of the Hudson Bay Expedition, 1920, 111. The Ascidiacea. Contr. 

 Can. Biol., N.S. Vol. 1, 1922. 



MacLeay, W. S. 



1825. Anatomical observations on the natural group of Tunicata, with the description 

 of three species collected in Fox Channel during the late Northern Expedition. 

 Trans. Linn. Soc. Lond., Vol. XIV, pp. 527-555, pi. XVIII-XX. 

 MoUer, H.P.C. 



1842. Index MoUuscorum Groenlandiac. Nat. Tidsskrift, Vol. IV, pp. 76-97. 

 Oka, A. 



1914. Notizen tiber japanische Ascidien, II. Annot. Zool. Japonenses, Vol. VIII, pt. 

 Ill, pp. 443-458. 



Redikorzew, W. 



1908. Die Ascidien des sibirischen Eismeeres. M^m. Acad. Imper. Sci. St. Petersburg., 

 VIII ,Ser., Vol. XVIII, pp. 1-59, pi. I, II. 



1916. Faune de la Russie. Tunieies, Livr. 1, pp. 1-336. 

 Ritter, W. E. 



1901. Papers from the Harriman Alaska Expedition. XXIII. The Ascidians. Proc. 

 Wash. Acad. Sci., Vol. III. pp. 225-266. pi. xxvii-xxx. 



1913. The simple Ascidians from the northeastern Pacific in the collection of the United 

 States National Musebm. Proc. U. S. Nat. Mus., Vol. 45, pp. 427-505, pi. 33-36. 

 Traustedt, M. P. A. 



1886. Kara-Havets Sopunge (Ascidiae simplices). Dijmphna-Togtets zool.-bot. Udbytte, 

 pp. 419-437, pi. 36-39. 

 Yin Name, W. G. 



1910. Compound Ascidians of the coasts of New England and neighboring British 

 Provinces. Proc. Bos. Soc. Nat. Hist., Vol. 34, pp. 339-424, pi. 34-39: 



1912. Simple Ascidians of the coasts of New England and neighboring British Prov- 

 inces. Proc. Bos. Soc. Nat. Hist., Vol. 34, pp. 439-619, pi. 43-73. 

 Verrill, A. E. 



1871. Descriptions of some imperfectly known and new Ascidians from New England 

 Amer. Journ. Science, Ser. 3, Vol. 1, pp. 93-100. 



ToKONTO, April 1922. 



