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Calanoida ( Order ) |
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Arietelloidea ( Superfamily ) |
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Arietellidae ( Family ) |
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Pilarella ( Genus ) |
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Pilarella longicornis Alvarez, 1985 (F) | |
| | | | | | | Ref.: | | | Alvarez, 1985 (p.190, figs.F); Ohtsuka & al., 1994 (p.158, Rem.F, figs.F); Bradford-Grieve & al., 1999 (p.882, 937, figs.F) |  issued from : S. Ohtsuka, G.A. Boxshall & H.S.J. Roe in Bull. nat. Hist. Lond. (Zool.), 1994, 60 (2). [p.159, Fig.37]. Female (paratype, coll. from Sao Paulo, Brasil): A, genital double-somite (ventral); B, apical endopod segment of A2; C, praecoxal arthrite of Mx1; D, endopod of Mx1; E, praecoxal endites of Mx2; F, tip of endopod of Mxp. Scales in mm. Nota: A1 21-segmented, asymmetrical, left longer than right and reaching to end of caudal rami. 2nd endopod segment of A2 with 3 setae of unequal lengths at midlength and 5 setae terminally; exopod indistinctly 7-segmented. Praecoxal arthrite of Mx1 with 6 elements (5 setae and 1 process); coxal epipodite with 5 setae; endopod with 2 setae of unequal lengths. 1st praecoxal endite with 2 setae and vestigial element; 2nd praecoxal endite with 2 spinulose setae; basal spine with 2 rows of spinules. P1with 1 outer spine on 3rd exopodal segment. P4 with short inner seta on coxa. P5: coxae separate from small intercoxal sclerite; endopod represented by 1 relatively long seta; exopod and basis separate; exopod 1-segmented with 1 short spine on outer middle margin and 1 short outer and 1 long inner spine terminally. Genital double-somite wider than long; genital system symmetrical; genital aperture slit-like, located just posterior to mid-length; large circular gonopores present at outermost extremity of genital aperture and small copulatory pore at innermost extremity; copulatory and receptacle ducts short; seminal receptacle relatively small, located medial to gonopore. Caudal rami slightly asymmetrical, with right ramus narrower and just shorter than left, with setae II and III relatively long.
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 issued from : M.P.J. Alvarez in Reta bras. Zool., S Paulo, 1985, 3 (4). [p.191, Figs.1-6 Female (from 28°36'S, 47°55'W): 1-2, habitus (dorsal and lateral, respectively); 3, forehead (lateral); 4, genital segment (ventral); 6, anal segment and caudal rami (lateral and dorsal, respectively).
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 issued from : M.P.J. Alvarez in Reta bras. Zool., S Paulo, 1985, 3 (4). [p.192, Figs.7-12]. Female: 7, left A1; 8, right A1; 9, A2; 10, Md (mandibular palp); 11, Md (gnathobase); 12, Mx1. Nota: A1 asymmetrical, both 21-segmented; right A1 with segments 2nd to 10th very short. Md endopod absent. Mx1 with 5 spine-like setae on the 1st internal lobe, 1 setose seta on the 2nd internal lobe, 2 setae on the reduced endopod, 5 setae on the 1st external lobe, and 3 terminal very long setae on the exopod.
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 issued from : M.P.J. Alvarez in Reta bras. Zool., S Paulo, 1985, 3 (4). [p.193, Figs.13-19]. Female: 13, Mx2; 14, Mxp; 15-18, P1 to P4; 19, P5. Nota: Mx2 with 2 strong setae on each of the two lobes of the 1st and 2nd basipods; endopod 4-segmented with 1 strong spine-like spinose on the 1st segment and in the three other segments respectively 4, 2, and 2 long, strong setae provided with 2 series of spinules each. Endopod of Mxp 5-segmented with respectively 4, 4, 3, 3, and 2 setae, some of which with spinules.
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Distribution map of Pilarella longicornis by geographical zones
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| | | | Loc: | | | S Brazil (continental shelf) | | | | N: | 2 | | | | Lg.: | | | (304) F: 1,73-1,53; {F: 1,53-1,73} | | | | Rem.: | hyperbenthic. (135 m). | | | Last update : 28/01/2015 | |
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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 24, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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