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Calanoida ( Order ) |
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Clausocalanoidea ( Superfamily ) |
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Aetideidae ( Family ) |
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Gaetanus ( Genus ) |
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Gaetanus brevirostris (Brodsky, 1950) (F,M) | |
| | | | | | | Syn.: | Gaidius brevirostris Brodsky, 1950 (1967) (p.160, figs.F,M); Park, 1978 (p.127); Bradford & Jillett, 1980 (p.58) | | | | Ref.: | | | Park, 1975 a (p.13); Markhaseva & Razzhivin, 1992 (1993) (p.611); Markhaseva, 1996 (p.187, figs.F,M) |  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).
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 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.
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 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.
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 Gaetanus 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.
| | | | | Compl. Ref.: | | | Galbraith, 2009 (pers. comm.) | | | | NZ: | 2 | | |
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Distribution map of Gaetanus brevirostris by geographical zones
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| | | | Loc: | | | Kuril-Kamchatka, Aleutian Trench, Vancouver Is.
Type locality: Pacific (NW part). | | | | N: | 5 | | | | Lg.: | | | (22) F: 4,1-4; M: 4; (37) F: 4,2-4; M: 4; {F: 4,00-4,20; M: 4,00} | | | | Rem.: | bathy & abyssopelagic. | | | Last update : 05/01/2015 | |
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 Any use of this site for a publication will be mentioned with the following reference :
Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed April 25, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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