Polychaeta 27 B 



This species suggests C. duneri Malmgren in the form of the abdominal 

 uncini; but the beak is proportionately longer and less divergent and the body 

 of the uncinus much narrower below, more uniform. The spatulate thoracic 

 setae are somewhat similarly asymmetrical but the mucron is much more diver- 

 gent from the axis as shown in the figure. The species seems conspicuously 

 different from duneri in the characters of the branchiae, which are united much 

 farther distad, with the free apical region proportionately much broader, widely 

 winged, and the tip free from barbs much shorter. In this respect the form 

 approaches the Alaskan C. gradlis Moore, though the free tips of the branchise 

 in the latter are also longer. In gradlis the collar is notched ventrally, whereas 

 in the present species it is there weakly angulate. The spatulate setae of gradlis 

 are symmetrical, or nearly so, instead of strongly asymmetrical. The beak of 

 the crochets is more elevated, making a greater angle with the axis. And the 

 abdominal uncini are different, the beak being more divergent and the body 

 proportionately wider and more strongly curved. Moore (1898) has recorded 

 as Chone sp. a caudal fragment from Egg harbour, Labrador, which is quite 

 possibly the present species. At least it would seem to have uncini very similar 

 to those of ungavana. 



Euchone analis (Kroyer). 



1856. Sabella analis KROYER, Danske Vid. Selsk. Forh., p. 17. 

 1865. Euchone analis MALMGREN, Ofvers. af Vet. Akad. Forh., p. 466, pi. 28, 

 f. 88-88G. 



LOCALITY. Northwest Territories: Bernard harbour, outer part. Station 

 41c. July 28, 1915. Depth, about 3 fathoms. Bottom, gray mud with 

 Laminaria, etc. Many tubes, in part with animals in situ. " Had dark cress- 

 bands on the otherwise pale tentades" (Johansen's field-notes). 



A common arctic form of circumpolar distribution, being known from 

 Bering sea, Davis strait, Greenland, Spitzbergen, etc. 



SERPULIDAE. 

 Serpula vermicularis Linne. 



1767. Serpula vermicularis LINNE, Syst. Nat., ed. 12, p. 1266. 



1863. Serpula Philippi MORCH, Naturh, Tidsskr., ser. 3, 54, p. 381. 



1838. Serpula fasdcularis LAMARCK, Hist. Nat. An. s. Vert., ed. 2, 5, p. 618. 



1817. Serpula contortuplicata SAVIGNY (nee Linne), Syst. Annel., p. 73. 



1864. Serpula Jukesii BAIRD, Journ. Linn. Soc., 8, p. 20. 

 . Serpula zelandica BAIRD, ibid., p. 21. 



1865. Serpula antarctica QUATREFAGES, Hist. Nat. Annel., 2, p. 503. 



1884. Serpula granulosa MARENZELLER, Denks. Akad. Wiss. Wien., p. 19, 



pi. 4, f. 1. 



1885. Serpula vasifera HASWELL, Proc. Linn. Soc. N.S. Wales, 9. p. 688, pi. 31, 



f. 1, pi. 32, f. 6-8. 



1901. Serpula columbiana JOHNSON, Proc. Bost. Soc. Nat. Hist., 19, p. 432, 



pi. 19, f. 199-204. 



1902. Serpula narconensis COLLIN, Semon's Foischungsreise in Austral, u. 



dem Malayenarchipel. Polychaet., p. 100. 



LOCALITIES. British Columbia: Departure bay, 1909-10. W. Spread- 

 borough, collector. A large cluster of tubes. 



British Columbia: Savary island beach. May 22, 1914. W. Taylor, 

 collector. A cluster of tubes. 



British Columbia: Port Simpson. Beach. Winter, 1914-15 C. M. 

 Barbeau, collector. Parts of two tubes probablv this species. On them are 



