BENTHIC POLYCHAETOUS ANNELIDS — REISH 149 



Wesenberg-Limd (1950) regarded A^. zosUricola as a synonym of A^. 

 venustuia because specimens from a single locality possessed 15-17 

 thoracic segments. Pettibone (1954) concm-red with this. Herpin 

 (1925, in Wesenberg-Lund, 1950) found a difference in egg-laying 

 habits between these two. I believe additional data, especially devel- 

 opmental, are needed before this question can be resolved. I am re- 

 taining the use of A^. zostericola to indicate the specimen from Little 

 Diomede Island possessed 15 thoracic segments. 



Distribution : Arctic Ocean, North Atlantic Ocean, Little Diomede 

 Island, British Columbia, Russian Pacific. 



Thelepus cincinnatus (Fabricius) 



Amphitrite cincinnata Fabricius, 1780, p. 286. 



Thelepus cincinnatus. — Pettibone, 1954, pp. 327-328, fig. 37d. 



Material: Station 57(1); Chukchi Sea; silt. 



Family Trichobranchidae 



Terebellides stroemi Sars 



Terebellides stroemi Sars, 1835, p. 48. — Berkeley and Berkeley, 1952, pp. 75-76, 

 figs. 152-153.— Pettibone, 1954, pp. 330-332, figs. 37j-m.— Reish, 1959, 

 p. 39.— Hartman, 1960, p. 162. 



Material: Stations 35(1), 41B(1), 43(1), 45(1), 57(4), 58(2), 60(1), 

 G-4(l), G-5(l), 11-3(1); Bering, Chukchi, and Beaufort Seas; variety 

 of substrate types. 



Family Sabellidae 



Chone duneri IVIalnigren 



Chone duneri Malmgren, 1867, p. 116, pi. 13, fig. 75.— Pettibone, 1954, p. 339, 

 figs. 39k-l.— Uschakov, 1955, p. 418. 



Material: Stations 42B(1); Bering Sea; silt. 



Chone infundibuliforinis Kroyer 



Chone infundibidiformis Kroyer, 1856, p. 33. — Berkeley and Berkeley, 1952, 

 p. 123, figs. 252-253.— Pettibone, 1954, pp. 338-339, figs. 39a-j.— Hartman, 

 1961, p. 42. 



Material: Stations 35(14); Bering Sea; very fine sand. 



Euchone analis (Kroyer) 



Sabella analis Kroyer, 1856, p. 17. — Hartman, 1951b, p. 381. — Pettibone, 1954, 

 pp. 339-340, figs. 39 m-n. 



Material: Station 35(1); Bering Sea; silt. 



