Polychaeta (supplementary) 73 
REFERENCES TO WORKS CITED 
Ashworth, J. H. 
1912. The Annelids of the Family Arenicolidae of North and South America, including an 
Account of Arenicola glacialis Murdoch. Proc. U.S. Nat. Mus., Vol. 39, pp. 24-32, 1910. 
Catalogue of the Chaetopoda in the British Museum, Part I, Arenicolidae, pp. 111-114. 
Grube, E. 
1851. Annulaten, in Middendorff’s Reise in den dussersten norden und osten Sibiriens, 
Band 2, Zoologie, Th. I, p. 17. 
Murdoch, J. 
1885. Marine Invertebrates. Report Internat. Polar Exped. to Point Barrow, Alaska, 
p. 155, Washington. 
1885a. Description of seven new species of Crustacea and one worm from Arctic Alaska. 
Proc. U.S. Nat. Mus., Vol. 7, p. 522. 
Wirén, A. 
1883. Chaetopoder fran Sibiriska Ishafvet .... Vega-Exped. Vetenskapliga Arbeten, 
Bd. 2, p. 406, Stockholm. 
