Species Card of Copepod
Harpacticoida ( Order )
    Cervinioidea ( Superfamily )
        Aegisthidae ( Family )
            Aegisthus ( Genus )
Aegisthus spinulosus  Farran, 1905   (F)
Ref.:
Farran, 1905 (p.46, Descr.F, figs.F); Rose, 1933 a (p.293, figs.F); Lang, 1948 a (p.177, figsF, Rem.); Marques, 1958 a (p.140, figs.F, Rem.); Wells, 1970 (p.4, Rem.); Boxshall, 1979 (p.202, 206, Rem., figs.F); Conroy-Dalton & Huys, 1999 (p.429: Rem.); Vives & Shmeleva, 2010 (p.88, 91, figs.F, Rem.)
Species Aegisthus spinulosus - Plate 1 of morphological figuresissued from : G.P. Farran inAnn. Rep. Fish. Brch., Ireland, 1902-1903, II, App. 2, 1905. [Plate XII, Figs.8-13].
Female (from W ireland): 8-9, habitus (dorsal and lateral, respectively); 10, A1; 11, Md; 12, Mx1; 13, Mx2.


Species Aegisthus spinulosus - Plate 2 of morphological figuresissued from : G.P. Farran in Ann. Rep. Fish. Brch., Ireland, 1902-1903, II, App. 2, 1905. [Plate XII, Fig. 14].
14, Female: P1.


Species Aegisthus spinulosus - Plate 3 of morphological figuresissued from : G.P. Farran in Ann. Rep. Fish. Brch., Ireland, 1902-1903, II, App. 2, 1905. [Plate XIII, Figs.1-4].
Female: 1, urosome (ventral); 2, Mxp; 3, end of P5; 4, caudal seta (median and terminal portions).

Compl. Ref.:
Wilson, 1942 a (p.170); Sewell, 1948 (p.394, 483); C.B. Wilson, 1950 (p.158); Gaard & al., 2008 (p.59, Table 1, N Mid-Atlantic Ridge)
NZ: 7

Distribution map of Aegisthus spinulosus by geographical zones
Loc:
Angola, Maroc, Cap Ghir, off Azores, Irlande W, Philippines, mers de Chine, Is. Samoa N, Pacif. E
N: 9
Lg.:
(58) F: 1,74; (618) F: 2,12; {F: 1,74-2,12}
Rem.: The validity of this species species is doubted by Lang (1948) who considers it a juvenile of A. aculeatus. Boxshall (1979, p.206 ) who has not been in the occasion to observe specimens keeps the species valid for the moment, and comments the significant differences with A. aculeatus: absence of chitinous reticulations from the cephalothorax, the complete subdivision of the genital complex, the armature of Mxp and P6.
According to Conroy-Dalton & Huys (1999) this species is incertae sedis. There are several similarities between this species and Andromax muricatus.

Identification characters:
Female: Rostrum ending in short pointed. Anterior prosme without chitinuous net. Posterior margin of dorsal metasomal segments with a pair of spines.
Last update : 20/02/2012
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Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2014. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Available at http://copepodes.obs-banyuls.fr/en 
[Accessed October 25, 2014]

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