Planche 1 Issued from : K.A. Brodskii in Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR, 1950, 35 (Israel Program for Scientific Translations, Jerusalem, 1967) [p.252, Fig.159].
Female (from central part Arctic): habitus (dorsal and lateral left side); R, rostrum; Do, urosome (dorsal); GsLa, genital segment (lateral left side); S1, P1; S5, P5.
Nota: Exopod of Mx1 with 8 setae (generally 4-7 setae in other species)

Planche 2 issued from : N;V. Vyshskvartzeva in Zool. Zh., 1987, LXVI, 10. [p.1574, Figs. 2, 3, 5, 7].
Female: 2-3, last thoracic segment and urosome (lateral and dorsal, respectively); 5, Mx1; 7, P5