Park, 1975 a (p.13); Markhaseva & Razzhivin, 1992 (1993) (p.611); Markhaseva, 1996 (p.187, figs.F,M)
Figures
Planche 1 issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.190, Fig.148]. Female (specimen from NW Pacif.: kuril Trench). Ce: forehead (lateral); R: rostrum (anterior); P.md: mandibular palp. Nota: A1 as long as cephalothorax, or longer by 1-2 segments.
Male (from Brodsky, 1950).
Planche 2 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.161, Fig.73]. As Gaidius brevirostris. Female (from NW Pacif.): R, rostrum; corner of the last thoracic segment and urosome (lateral right side); Mp2, Mxp; S4B1, distal inner margin of basipodal segment 1 of P4. Nota: Spines on posterior corners of last thoracic segment short, situated in the middle of posterior border (lateral view).
Male: S5, P5.
Planche 3 Gaetanus brevirostris female: 1 - Cephalon without frontal spine. 2 - Posterior corners of last thoracic segment with small spines. 3 - Exopodal segment 1 of A2 without setae; segment 2 with 2 setae. 2nd internal lobe of Mx1 with 4 setae. Exopod of P1 3-segmented with 2 external spines. 4 - Mxp protopodite without lateral plate. 5 - Md palp base with 2 setae. 6 - Exopod of P1 clearly 3-segmented.
Planche 4Gaetanus brevirostris male: 1 - Cephalon without frontal spine. 2 - Cephalon without crest in anterior part. 3 - Exopodal segment 3 of left P5 stylet-like. Body size < 5 mm. 4 - Posterior corners of last thoracic segment with spines. 5 - Spines significantly shorter than the border of genital segment. 6 - Exopodal segment 3 of P5 with stylet-like narrow. 7 - Body size ± 4 mm.
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