4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 28 



ber 15, 1948, I specimen; and in 213 feet, 4 miles out, October 6, 

 1949, I specimen. 



This species has been taken at East Greenland ; Tromso, Norway, 

 to White Sea; and Bernard Harbor, Northwest Territories. In the 

 U. S. National Museum there are specimens from Bay of Fundy; 

 off Newfoundland ; Dobbin Bay, Ellesmere Land ; and southern part 

 of Fox Basin. 



Orchomenella groenlandica measures about 7 mm., and Stephensen 

 has recorded it off northern Norway between 40 and 100 m. 



ARISTIAS TUMIDA (Kroyer) 



Aristias tumidus Sars, 1890, p. 49, pi. 18, fig. i. — Stebbing, 1906, p. 49. — 

 Stephensen, 1923, p. 71 ; 1944b, p. 24. 



Material collected. — In 125 feet, 4 to 5 miles out, September 9, 1948, 

 4 specimens, taken from the atrial cavity of ascidian, Molgula retovi- 

 formis. In 175 feet, 4 miles out, October 14, 1949, 2 specimens. 



This species has been recorded from Siberian Polar Sea, Spitz- 

 bergen. North Norway, East and West Greenland, Newfoundland 

 Bank, and now from Point Barrow. 



Aristias tumida is occasionally found in the branchial chamber of 

 ascidians. It reaches a length of 8 mm., and has been taken from the 

 littoral down to 105 m. 



ORCHOMENE SERRATA (Boeck) 



Orchomene serratus Sars, 1890, p. 62, pi. 23, fig. i ; 1895, p. 682, pi. IV, fig. I. — 

 Stebbing, 1906, p. 44. — Stephensen, 1944b, p. 23. 



Material collected. — Taken off Point Barrow base in 125 feet, 

 September 9, 1948, i specimen. 



This species has been recorded from Siberian Polar Sea, Spitz- 

 bergen, coast of Norway, Skagerrak, and east coast of Greenland. 

 The present record is the first for Alaska. Stebbing gives the length 

 as, $ 10 mm., (^ about 6 mm. It has been taken down to about 660 m. 



PARATRYPHOSITES ABYSSI (Goes) 



Lysianassa abyssi Goes, 1866, p. 519, pi. 37, fig. 5- 



Paratryphosites abyssi Stebbing, 1906, p. 43. — Shoemaker, 1930a, p. 18, fig. 10. 



— GURJANOVA, 1938, pp. 245, 383. 



Hippomedon abyssi Stephensen, 1913, p. iii. 

 Hippomedon stephenseni Frost, 1936, p. 7, fig. 



Material collected. — In 741 feet, 12.1 miles out, August 17, 1949, 

 I specimen. 



