Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Scolecitrichidae ( Family )
            Amallothrix ( Genus )
Amallothrix gracilis  (Sars, 1905)   (F,M)
Syn.: Scolecithricella gracilis Sars, 1905 b (p.21, Rem.F); A. Scott, 1909 (p.93, figs.F); Tanaka, 1962 (p.60, figs.F,M, Rem.); Sewell, 1948 (p.530); Vives, 1982 (p.292); Shih & Young, 1995 (p.73);
Scolecithrix globiceps Farran, 1908 b (p.54, Descr.F, figs.F);
Scaphocalanus globiceps : With, 1915 (p.199, figs.F,M)
Ref.:
Sars, 1925 (p.176, figs.F); Rose, 1933 a (p.152, figs.F); Jespersen, 1934 (p.89, fig.M); 1940 (p.37); Lysholm & al., 1945 (p.28); Sewell, 1947 (p.154, 161, Rem.); Owre & Foyo, 1967 (p.68, figs.F); Bradford, 1973 (p.143); Bradford & al., 1983 (p.78, 82, figs.F,M, Rem.); Vyshkvartzeva, 1999 (2000) (p.235); Vives & Shmeleva, 2007 (p.734, figs.F,M, Rem.)
Species Amallothrix gracilis - Plate 1 of morphological figuresissued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1962, X (1). [p.61, Fig.139]. As Scolecithricella gracilis.
Female: a, habitus (dorsal); b, forehead (lateral left side); c, last thoracic segment and urosome (lateral left side); d, rostrum (dorsal view); e, Mx2; f, Mxp; g, P1 (posterior aspect); h, P2; i, P5.
Mx2 has 5 small bud-like, and 3 long worm-like sensory filaments on the endopod.

Male: j, last thoracic segment and urosome (left lateral side); k, masticatory edge of Md; l, P5.


Species Amallothrix gracilis - Plate 2 of morphological figuresIssued from : J.M. Bradford, L. Haakonssen & J.B. Jillett in Mem. N.Z. oceanogr. Inst., 1983, 90. [p.84, Fig.47].
Female: A, habitus (lateral left side); B, endopod of P2; C, P5; D, P5 (specimem from another station).

Male: F, P5


Species Amallothrix gracilis - Plate 3 of morphological figuresIssued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XLIX, figs.9-21]. As Scolecithrix gracilis.
Female: 9, habitus (dorsal); 10, idem (lateral left side); 11, rostrum; 12, A2; 13, Md; 14, Mx2; 15, distal segments of Mx2, with bud-like setae (enlarged); 16, Mxp; 17, P1; 18, P2; 19, P3; 20, P4; 21, P5.


Species Amallothrix gracilis - Plate 4 of morphological figuresissued from : R.B.S. Sewell in The John Murray Expedition, 1933-34, Scientific Reports, VIII (1), 1947. [p.162, Fig.43].
Female (from Central part of Arabian Sea): A, A2; B, Mxp; C, P2; D, P3; E, proximal part of P4; F, P5.
Nota: The number of setae from the various parts of Mx1: outer lobe (-); inner lobe 1 (12), inner lobe 2 (2), inner lobe 3 (4): basal segment 2 (5); endopod (8); exopod (9).


Species Amallothrix gracilis - Plate 5 of morphological figuresissued from : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate XXXI, Figs.10-18]. As Scolecithricella gracilis.
Female (from Halmahera Sea): 10, habitus (dorsal); 11, forehead (lateral); 12, last thoracic and genital segments (left side); 13, rostrum; 14, A1; 15, Mx2 (distal portion); 16, P2; 17, P4; 18, P5.


Species Amallothrix gracilis - Plate 6 of morphological figuresissued from : G.P. Farran in Fish. Ire. Sci. Invest., 1906, II [1908]. [Pl. V, Figs.8-13]. As Scolecithrix globiceps.
Female (from W Ireland): 8, P1; 9, P2; 10, Mx1 (terminal part); 11, Mxp; 12, Mx2; 13, habitus (dorsal).


Species Amallothrix gracilis - Plate 7 of morphological figuresissued from : G.P. Farran in Fish. Ire. Sci. Invest., 1906, II [1908]. [Pl. VI, Fig.8]. As Scolecithrix globiceps.
Female: 8, P5.


Species Amallothrix gracilis - Plate 8 of morphological figuresissued from : C. With in The Danish Ingolf-Expedition, Copepoda I, 1915, III, 4. [p.199, Text-fig. 63]. As Scaphocalanus globiceps.
Female (from 61°30'N, 17°08'W): a, forhead (lateral); b, corner of the last thoracic segment and genital segment (right lateral).


Species Amallothrix gracilis - Plate 9 of morphological figuresissued from : C. With in The Danish Ingolf-Expedition, 1915, III (4). [Pl. VII, Fig.10, a-b]. As Scaphocalanus globiceps.
Female: a, labrum (oral surface); b, serrula 6-dentata.


Species Amallothrix gracilis - Plate 10 of morphological figuresissued from : C. With in The Danish Ingolf-Expedition, 1915, III (4). [Pl. VII, Fig.11, b]. As Scaphocalanus globiceps.
Male: b, P5.


Species Amallothrix gracilis - Plate 11 of morphological figuresissued from : C. With in The Danish Ingolf-Expedition, 1915, III (4). [Pl. VIII, Fig.9, a-c]. As Scaphocalanus globiceps.
Male: a, right P5; b-c, right P5 (endopodite in anterior and posterior view).


Species Amallothrix gracilis - Plate 12 of morphological figuresissued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. [p.68, Figs.439, 440].
Female: 439, rostrum; 440, habitus (lateral).


Species Amallothrix gracilis - Plate 13 of morphological figuresissued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. [p.24, Figs.105, 106].
Female: 105, distal segment of Mx2; 106, P5.

Nota: P5 unisegmented.

Compl. Ref.:
Sewell, 1948 (p.330, 502, 521, 546); C.B. Wilson, 1950 (p.161); Mazza, 1966 (p.71); Grice & Hulsemann, 1967 (p.16); Deevey & Brooks, 1977 (p.256, tab.2, Station "S"); Kovalev & Shmeleva, 1982 (p.84); Suarez & al., 1990 (tab.2); Suarez, 1992 (App.1); Suarez-Morales & Gasca, 1998 a (p.111); Holmes, 2001 (p.57); Kuriyama & Nishida, 2006 (p.299: Tab;II; p.306: Tab.III, fig.7); Morales-Ramirez & Suarez-Morales, 2008 (p.522)
NZ: 12

Distribution map of Amallothrix gracilis by geographical zones
Loc:
Brésil (in Björnberg, 1965), off Madère, off Portugal, Açores, Mer des Caraïbes, G. du Mexique, Floride, off Bermuda (Station "S"), Mer des Sargasses, off Irlande W, Détr. de Davis S, Islande S, Médit. (Mer d'Alboran, Médit. W, G. de Syrte), Mer Arabe, Indien, Indonésie-Malaisie, Philippines, Mer de Chine (South China Sea), Japon (Izu), W Costa Rica, Galapagos, Pérou, Nouvelle-Zélande,
N: 26
Lg.:
(1) F: 4,25; (5) F: 4; (7) F: 4,48; M: 4,44; (9) F: 4,1-3; M: 3,95-3,3; (24) F: 4,5-4,3; (117) F: 4,13; M: 4,06; (1000) F: 4,2 ±0,2; {F: 3,00-4,50; M: 3,30-4,44}
Rem.: meso-bathypelagic. Sargasso Sea: 1000-1500 m (Deevey & Brooks, 1977, station "S");
Last update : 21/11/2012
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[Accessed October 21, 2014]

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