Isopoda 39o 



1901. Dajus mysidis RICHARDSON, Proc. U. S. Nat. Mus., XXIII, p. 579. 



1905. Dajus mysidis RICHARDSON, Bull. 54, U. S. Nat. Mus., p. 573. 



1909. Dajus mysidis G. O. SARS, Sec. Arc. Exped. Fram. Videnskabs-Selskabet 



i Kristiania, No. 18, p. 9. 

 1916. Dajus mysidis HANSEN, H. J., Danish Ingolf Exped., Crust. Malacost, 3, 



pt. 5, p. 208. 



Not taken by the Canadian Arctic Expedition. 



Localities recorded: 



North America: Five places off the east coast of Baffin land, namely, lat. 

 73 48' N., long. 80 30' W.; lat. 72 33' N., long. 71 30' W.; lat. 71 57' N., 

 long. 73 56' W.; lat. 66 33' N., long. 61 50' W.; lat. 64 56' N., long. 66 

 18' W.; also Labrador. 



West Greenland: This parasite has been taken on My sis oculata from the 

 following stations: Murchison sound, about lat. 77 30' N., 25 fathoms; Duck 

 island, lat. 73 55' N., 3-15 fathoms; Kingigtok, lat. 73 17' N., Jacobshavn, 

 lat, 69 13' N., Claushavn, lat, 69 05' N., 5-10 and 10-15 fathoms; Egedesminde, 

 lat. 68 42' N., 20-25 fathoms; Holsteensborg, lat. 66 56'N., andBrede fjord, 

 about lat. 61 20' N. 



East Greenland: Danmark Havn, lat. 76 45' N., on M. oculata in from 

 0-5 to 10 fathoms; at Sabine island: Hurry inlet, lat. 70 50' N., Angmagsalik, 

 lat. 65 30' N., on M. oculata in 10-15 fathoms. 



Europe: North of the New Siberian islands; from Kostin Shar, southwest 

 coast of Novaya Zemlia on M . oculata; also from Franz Josef land on the same 

 host; Vardo and Vadso, Finmark, on the same host; Norway, lat. 66 N., on 

 M. mixta; on M. oculata at Jan May en. 



Famity Cryptoniscidae. 

 Clypeoniscus meinerti Giard and Bonnier. 



1893. Clypeoniscus meinerti GIARD AND BONNIER, Bull. Scientifique de la 

 France et de la Belgique (4), XXV, p. 421-436-444. 



1905. Clypeoniscus meinerti RICHARDSON, Bull. 54, U. S. Nat. Mus., p. 577. 



1916. Clypeoniscus meinerti HANSEN, H. J., Danish Ingolf Exped. Crust. 

 Malacost, 3, pt. 5, p. 213. 



Not taken by the Canadian Arctic Expedition. 



Localities recorded: 



West Greenland : Infesting Synidotea nodulo.sa Kr^yer, partly from Godhavn, 

 lat. 69 14' N., partly without special locality, but probably from a more southern 

 locality. 



Europe: Jugor Schar, entrance to the Kara sea on S. nodulosa; on Pleuro- 

 prion murdochi either from Iceland or the Faeroes. 



SUBORDER GNATHIIDEA. 



Family GNATHIIDAE. 



Genus Gnathia Leach 1814. 



Syn. Anceus Risso (male). 



Syn. Pranzia LATR. (larva). 



Gnathia elongata (Kr^yer). 



1849. Anceus elongatus KR^YER, Voy. en Scand., Crust., pi. 30, figs. 3 a-g. 

 1846-49. Anceus elongatus KR</>YER, Naturh. Tidsskr. (2), II, pp. 388-394. 

 1887. Anceus elongatus HANSEN, Dijmphna-Togetete Zool.-bot. Udbytte, p. 205. 



