Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pseudodiaptomidae ( Family )
            Archidiaptomus ( Genus )
Archidiaptomus aroorus  Madhupratap & Haridas, 1978   (F,M)
Ref.:
Madhupratap & Haridas, 1978 (p.253, figs.F,M); Grindley, 1990 (p.240, Rem.); Boxshall & Halsey, 2004 (p.174, as arrorus)
Species Archidiaptomus aroorus - Plate 1 of morphological figuresissued from : M. Madhupratap & P. Haridas in Crustaceana, 1978, 35 (3). [p.254, Figs.1-9].
Female (from 9°58'N, 76°15'E): 1, habitus (dorsal); 2, urosome (dorsal); 3, genital segment (lateral); 4, A1; 8, A2; 9, Md.

Nota:
- Prosome about twice the length of urosome.
- Urosome 4-segmented; relative lengths of urosomal segments and caudal rami 13.8 : 5 : 6. 4 : 4 : 7.5.
- Caudal rami more than twice as long as wide, middle seta the longest.
- Genital segment slightly longer than wide, projecting ventrally and having on the anteolateral sides a pair of small lobes, each with a row of small spines, distally on the dorsal side it bears 3 rows of spinules, incomplete in the middle, and 2 pairs of bristles on the lateral sides.
- A pair of small spines is present on the 2nd urosomal segment.
- A1 24-segmented, extending to the end of the genital segment.

Male: 5, habitus (dorsal); 6, urosome (dorsal); 7, A1.

Nota:
- Urosome 5-segmented; relative lengths of urosomal segments and caudal rami 6.5 : 6 : 5.3 : 5 : 4.3 : 5.5.
- Right A1 geniculate, 20-segmented, segments 7 to 12 and 17 with 1 spine each.
- A2 to P4 as in female.


Species Archidiaptomus aroorus - Plate 2 of morphological figuresissued from : M. Madhupratap & P. Haridas in Crustaceana, 1978, 35 (3). [p.256, Figs.10-16].
Female: 10, Mx1; 11, Mx2; 12, Mxp; 13, P1; 14, P4; 15, P5.

Male: 16, P5.

Compl. Ref.:
Grindley, 1984 (p.218); Madhupratap & Haridas, 1986 (p.105, tab.2)
NZ: 1

Distribution map of Archidiaptomus aroorus by geographical zones
Loc:
India (Aroor, Cochin)
N: 1
Lg.:
(1039) F: 1,44-1,50; M: 1,08-1,18; {F: 1,44-1,50; M: 1,08-1,18}
Rem.: form brackish, limnic, estuary. Salility: 0.5 p.1000.
After Madhupratap & Haridas (1978, p.257) this genus and species possesses many 'primitive' characters and strong affinities to the family Diaptomidae.
Last update : 03/06/2020
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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 July 24, 2024]

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