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Calanoida ( Order ) |
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Diaptomoidea ( Superfamily ) |
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Pontellidae ( Family ) |
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Pontella ( Genus ) |
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Pontella gaboonensis T. Scott, 1894 (F,M) | |
| | | | | | | Syn.: | Pontella mediterranea gaboonensis T. Scott, 1894 b (p.86, figs.M, juv. F) | | | | Ref.: | | | Giesbrecht & Schmeil, 1898 (p.144); Vervoort, 1965 (p.176, Descr.F,M, figs.F,M, Rem.: p.185); Silas & Pillai, 1973 (1976) (p.776); Bradford-Grieve & al., 1999 (p.885, 960, figs.F,M) |  Issued from : W. Vervoort in Atlantide Report, 1965, 8. [p.177, Fig.30] Female (from off Nigeria): a, habitus (dorsal); b, idem (lateral right side); c, forehead (dorsal); d, head (lateral); e, idem (lateral, after removal of mouth appendages); f, posterior part cephalothorax and urosome (dorsal). Nota: Head and 1st thoracic somite almost completely fused (a weak line visible on the dorsal portion of the cephalon). Urosome 2-segmented; genital complex slightly asymmetrical (more slightly produced on the left side); anal somite partly covered (anal flap completely hidden by the genital complex). Caudal rami nearly symmetrical, the right slightly larger; each ramus has a short, densely haired appendicular seta; the internal border of the caudal rami is densely haired. A1 24-segmented.
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 Issued from : W. Vervoort in Atlantide Report, 1965, 8. [p.178, Fig.31] Female: a, posterior part cephalothorax and urosome (lateral right side); b, idem (lateral left side); c, Mx2; d, Mxp. Nota: Mx2 characterized by the presence of large, strongly spinulose setae on all endites; coxa and basis fused, each segment with 2 endites; the distal three endites each carry 2 strong, spinulose setae, and a smaller appendicular seta, the proximal endite with 2 large and 3 smaller spinulose setae; the single endite on the basis is coalescent with a large, spinulose seta, and 1 fine, basal seta; 4th basipodal segment distinctly separated from the basis with 1 spinulose seta; only 2 free endopodal segments, 1st with 1 spinulose seta, 2nd (apical) segment with 2 spinulose setae and 1 smaller, haired seta. Coxa of Mxp well developed, with 3 lobes, packed closely together, the proximal lobe with 2 spinulose setae, median lobe with 2 spinulose setae plus 1 small appendicular seta, distal lobe with 1 spinulose seta plus 1 appendicular seta; basis small with 1 small seta, the apical lobe is scarcely separated from the basis and has 2 setae; 5 endopodal segments with 2, 1, 12, 2, 3.1 setae, respectively; there is no external seta on the 4th segment.
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 Issued from : W. Vervoort in Atlantide Report, 1965, 8. [p.180, Fig.32] Female: a-b, A1; c, A2; d, Md (mandibular palp); e, Md (mandibular praecoxa); f, Mx1; g, P5. Nota: Praecoxal arthrite of Mx1 well developed, with 8 strong, spinelike setae, and 7 small spiniform setae; coxal epipodite with 9 setae (two of which are fine); coxal endite large with 3 big setae; basal endite small with 1 strong seta and 2 fine setae on the lobe; basal exite just visible with 1 seta; basipodite (4th segment) large (it may have fused with some of the endopodal segments), with three groups of 4, 2, 2 setae, respectively; a small, free endopodal segment with 5 setae; exopodite well developed with 10 setae.
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 Issued from : W. Vervoort in Atlantide Report, 1965, 8. [p.181, Fig.33] Female: a, P1; b, P2; c, P3; d, P4.
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 Issued from : W. Vervoort in Atlantide Report, 1965, 8. [p.183, Fig.34] Male: a, habitus (lateral right side); b, idem (dorsal); c, head (lateral); d, forehead (dorsal); e, posterior part cephalothorax and urosome (lateral right side). Nota: Head and 1st thoracic somite completely fused, 4th and 5th partly separate. Rostral lens strongly visible in lateral view. The urosomal segments and furca in the proportional lengths 18:12:17:8:16:29 = 100.
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 Issued from : W. Vervoort in Atlantide Report, 1965, 8. [p.184, Fig.35] Male: a, postrior part cephalothorax and urosome (dorsal); b, right A1; c, right P5; d, left P5. Nota: A2, mouth parts and legs 1-4 as in female.
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 Issued from : J.M. Bradford-Grieve, E.L. Markhaseva, C.E.F. Rocha & B. Abiahy in South Atlantic Zooplankton, edit. D. Boltovskoy. 1999, Vol. 2, Copepoda; [p.1071, Fig. 7.393: Pontella gaboonensis]. B = basis; r = right leg; l = left leg. Female characters (from key, p.959): - Genital segment with sides almost parallel in dorsal view; P5 exopod without inner spines. - Caudal rami subequal. - Urosome of 2 somites.
| | | | | Compl. Ref.: | | | Neto & Paiva, 1966 (p.28, Table III); Binet & al., 1972 (p.71); Dessier, 1979 (p.153, 201, 206); Diouf & Diallo, 1987 (p.260) | | | | NZ: | 1 | | |
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Distribution map of Pontella gaboonensis by geographical zones
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| | | | Loc: | | | Angola (Baia Farta), Congo, G. of Guinea, Ivorian shelf, Casamance | | | | N: | 8 | | | | Lg.: | | | (16) F: 2,95-2,7; M: 2,68-2,65; (57) M: 2,5; {F: 2,70-2,95; M: 2,50-2,68} | | | | Rem.: | epiplagic.
For Vervoort (1965, p.185) the adult female differs from P. mediterranea in the stucture of the 5th thoracic somite and P5; the adult male shows differences in the structure of the clasping A1 and P5.
Occurrence in Baia Farta (Angola) at temperature: 26°7 C, and salinity: 30.70 p.1000 | | | Last update : 19/01/2016 | |
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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 November 21, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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