Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Jaschnovia ( Genus )
Jaschnovia tolli  (Linko, 1913)   (F,M)
Syn.: Scolecithrix tolli Linko, 1913;
Derjuginia tolli : Brodsky, 1950 (1967) (p.157, figs.F,M); Pertsova, 1967 (p.240); Harding, 1966 (p.17); Dunbar & Harding, 1968 (p.315, 319, Rem.: p.324); Buchanan & Sekerak, 1982 (p.41, Table 2: vertical distribution, Rem.: p.48);
no Derjuginia tolli : Johnson, 1963; no Vidal, 1971 a (p.17, 25, 114, figs.F,M);
Yaschnovia tolli: Musaeva & Suntsov, 2001 (p.511)
Ref.:
Bradford & Jillett, 1980 (p.29, Rem.); Markhaseva, 1980 a (p.65, figs.F, M); Kosobokova, 1989 (p.26); Markhaseva, 1996 (p.226, figs.F,M)
Species Jaschnovia tolli - Plate 1 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.229, Fig.181].
Female (from Markhaseva, 1980). Gn: genital segment (ventral view).

Nota: Posterior corners of last thoracic segment prolonged and pointed, reaching the midlength of genital segment.
A1 reaching the midlength of genital segment.
Endopodal segment 2 external lobe with 6 setae.
Endopod of Mx1 with 16 setae.


Species Jaschnovia tolli - Plate 2 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.230, Fig.182].
Male (from Markhaseva, 1980).

Nota: Posterior corners of last thoracic segment rounded (lateral view), pointed and curved externally (dorsal view).
A21 reaching the posterior border of genital segment.
Oral parts rudimentary in comparison with those in females.
P1-P4 as in famales, but P4 weakly spinulose on their surface.


Species Jaschnovia tolli - Plate 3 of morphological figuresIssued 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.158, Fig.71]. As Derjuginia tolli.
Female (from East Siberian Sea): habitus (lateral left side).

Male: habitus (dorsal and lateral left side); S1, P1; S2, P2; S5, P5.


Species Jaschnovia tolli - Plate 4 of morphological figuresissued from : E.L. Markhaseva in issled. Fauny Morei, 1980, XXV (XXXIII). [p.66, Fig.1].
Female (from White Sea): 1-2, habitus (dorsal and lateral, respectively); 3, posterior prosome and urosome (right lateral); 4, idem (dorsal); 5, genital somite (ventral); 6, A2; 7, Mx1; 8, Mxp (protopodite and basipodite); 9, P1; 10, P2; 11, P3; 12, P4 (incomplete).


Species Jaschnovia tolli - Plate 5 of morphological figuresissued from : E.L. Markhaseva in issled. Fauny Morei, 1980, XXV (XXXIII). [p.67, Fig.2].
Male: 1-2, habitus (dorsal and lateral, respectively); 3-4, posterior prosome and urosome (dorsal and lateral, respectively); 5, P5.


Species Jaschnovia tolli - Plate 6 of morphological figuresissued from : E.L. Markhaseva in issled. Fauny Morei, 1980, XXV (XXXIII). [p.75, Fig.9].
Male stage V (from Laptev Sea): 1-2, habitus (dorsal and lateral, respectively); 3A1; 4, A2; 5, Md; 6, Mx1; 7, Mx2; 8, Mxp (protopodite and basis); 9, P1; 10, P2; 11, P3; 12, P4; 13-14, P5.

Compl. Ref.:
Vinogradov & al., 1994 (tab.1); Abramova, 1996 (tab.1); Hanssen, 1997 (tab.3.1); Kosobokova & al., 1998 (tab.2); Markhaseva, 1998 (p.250, Fig.4); Pinchuk & Paul, 2000 (p.4, table 1, % occurrence); Kosobokova & Hirche, 2000 (p.2029, tab.2); Lischka & al., 2001 (p.186); Darnis & al., 2008 (p.994, Table 1); Hopcroft & al., 2010 (p.27, Table 2); Dvoretsky & Dvoretsky, 2009 a (p.11, Table 2, abundance); 2010 (p.991, Table 2); Kosobokova & al., 2011 (p.29, Table 2, fig.4, Rem.: Arctic Basins)
NZ: 1

Distribution map of Jaschnovia tolli by geographical zones
Loc:
Baffin Bay, Lancaster Sound, White Sea, Barents Sea, Pechora Sea, Kara Sea, Yamal (coastal W), Baidara Bay, Laptev Sea, New Siberian Islands, Chukchi Sea, SE Beaufort Sea, N Okhotsk Sea, Arct. (all polar Basins), Fletcher's Ice Is., Canadian abyssal plain.

Type locality: Arctic (off New Siberian Islands)
N: 21
Lg.:
(22) F: 2,5; M: 2,4-2,2; (37) F: 2,5-2,15; M: 2,2-2,1; (796) F: 2,24-1,84; M: 2,24-1,84; {F: 1,84-2,50; M: 1,84-2,40}
Rem.: hyperbenthic ? neritic (± brackish), estuaries.
Last update : 21/02/2019
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed February 28, 2021]

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