20d Canadian Arctic Expedition, 1913-18 



Spengel, J. W. 



1879a. tJber die Organization des Echiurus Pallasii. Zool. Anz., 2, p. 542-547. 



1879b. Beitrage zur Kenntniss der Gephyreen I. Die Eibildung, die Entwicklung und daa 



Mannchen der Bonellia. Mitt. a.d. zool. Stat. z. Neapel., 1, p. 357-419, pi. 8-12. 

 1880. Same title, II. Die Organization des Echiurus Pallasii. Zeits. wiss. Zool., 34, p. 



458-538, pi. 23-26. 

 1898. Der Name Physcosoma. Zool. Anz., 21, p. 50. 

 1907. Eine verkannte Sipunculus-Larve. Zool. Anz., 31, p. 97-99. 

 1912a. Beitrage zur Kenntniss der Gephjrreen, III. Zum Ban des Kopflappen der armaten 



Gephyreen. Zeits, wiss, ZooL 101, p. 342-385, 21 pi. 

 1912b. Beitrage zur Kenntniss der Gephyreen, IV. Revision der Gattung Echiurus. 



Jahrb. Abt. Syst., 33, p. 173-212, 1 pi. 

 1912c. Einige Organisationsverhaltnisse von Sipunculusarten und die Bedeutung fur die 



Systematik dieser Tiere. Verh. zool. Ges., Leipzig, 22, p. 261-272. 

 1912d. Uber den Hautmuskelsohlauch gewisser Thalassema-Axten und seine Bedeutung 



ftir die Systematik dieser Tiere., Op. oit., 22, p. 309-317. 

 1913. Zur Organisation und Systematik der Gattung Sipunculus. Verh. deusch. zool. Ges., 



Leipzig, 23, p. 68-78. 

 Spratt, T. 



1848. On the Influence of Temperature upon the distrib. of the Fauna of the Aegean Sea. 



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1900. Note on a Variation in the Nimiber of Genital Pouches in Thalassema neptuni Gaertner 



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order. Mem. Ind. Mus. Calcutta, 1, p. 283-293. 

 1909b. The generic name "Investigator"; a correction. Rec. Ind. Mus., 3, p. 183. 

 Stimpson, W. 



1853. Marine Invert, of Grand Manan. Smiths. Contrib. to Knowledge, 6, 1854. 



1855. Descrip. of some New Marine Invert. Proc. Acad. Sci. Phil. 7, p. 385-394 (Gephyrea, 



p. 390.) 

 1864. Descriptions of new Species of Marine Invertebrates from Puget Sound. Proc. Acad.- 

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 Stossich, M. 



1882. Prospetto della fauna del mare Adriatico. Parte 4. Boll. Soc. Adriat. Soc. Nat. 

 Trieste, 7, p. 168. 

 Studer, Th. 



1879. Thalassema verrucosa sp. nov. Arch. f. Naturg., 45, p. 124. 

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1874. Notiz uber Sipunculus und Phascolosoma. Jen. Zeit. Nat., 8, p. 488. 

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1875. Etudes sur les Gephyriens inermes des Mers de la Scandinavie, du Spitzberg et du 



Greenland. Bih. till k. Svensk. vet. Akad. Handl., 39, Stockholm, III, no. 6, p. 1. 



1876. Recherches sur le Phascolion Strombi. Op. cit., Ill, no. 3, p. 1 . 



1905. Northern and arctic Invertebrates in the Collection of the Swedish State Mus. 

 (Rikmus.) I. Sipunculids. K. Svensk. Vet.-Akad. Handl., 39, no. 1, lOOp., 15 pi. 

 1911. Priapulids and Sipunculids dredged by the Swedish Antarctic Exped., 1901-1903, 

 and the phenomena of bipolarity. Op. cit., 47, no. 1, p. 1-36, pi. 1-4. 

 Thiele, J. 



1900. Proneomenia thulensis n. sp. Fauna arctica. 1, p. 111-116, 1 pi. 

 Torrey, J. C. 



1902a. The early development of the Mesoblast in Thalassema. Anat. Anz., 21, p. 247 



256, 3 f. 

 1902b. The Cell-Lineage of the Mesoblast-Bands and Mesenchyme in Thalassema. Science, 



U.S., 15, p. 576-577. 

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 165-246, 10 f. 

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1807. British Fauna. 

 Uekull, J. von Y. 



1896. Zur Muskel und Nervenphysiologie von Sipunculus nudus. Zeit. Biol. (2) 15, p- 1 



1854. In C.R. Acad. Sci. Paris, 39, p. 640-643. 

 Vejdovsky, F. 



1878. Uber die Eibildung und die Mannchen von Bonellia viridis. Zeit. wiss. Zool., 30, p. 



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 Verrill, A. E. 



1873a. Results of recent dredging Expeditions on the Coast of New England, Amer.Journ. 



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