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Calanoida ( Order ) |
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Clausocalanoidea ( Superfamily ) |
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Aetideidae ( Family ) |
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Euchirella ( Genus ) |
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Euchirella speciosa Grice & Hülsemann, 1968 (F) | |
| | | | | | | Ref.: | | | Grice & Hülsemann, 1968 (p.325, Descr.F, figs.F, tab.2); Tanaka & Omori, 1969 a (p.160, Rem.); Bradford & Jillett, 1980 (p.43, figs.F, fig. 73, distribution chart); Vaupel Klein, 1980 (p.152); 1984 a (p.46, 49, figs.F, Table II: characters, Rem.); Markhaseva, 1996 (p.167, figs.F) |  issued from : J.M. Bradford & J.B. Jillett in Mem. N.Z. oceanogr. Inst., 86, 1980. [p.45, Fig.28]. Female: A, habitus (lateral left side); B, idem (dorsal); C, genital segment (lateral left side); D, idem (lateral right side); E, idem (dorsal); F, basipod 1 of P4. Nota: The south-west Pacific specimens agree more closely with E. speciosa Grice & Hulsemann, 1968 than with E. venusta.
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 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.76, Fig.14, b]. Female: b, exopodite 2 of Mxp (with 3 setae). Scale bar = 0.2 mm.
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 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.84, Fig.18, a, j, l]. Female: a, number and structure of spines among the lateral margin of exopodal segments 1, 2 and 3 of P1 (left appendage, posteriotr view) (note: 3 unequal spines, the proximal two largely smooth, the distal one minutely pectinate (corresponding to exopodites 1, 2 and 3 respectively); j, stage in fusion of endopodal segments 1-2+3 of P2 (right leg, anterior face, drawn from posterior) (note: fully coalesced condition; l, lateral margin of exopodal segment 2 of P2 (left appendage, posterior view). Scale bars: p = 0.2 mm for l; q = 0.2 mm for a and j.
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 issued from : G.D. Grice & K. Hulsemann in Pacif. Sci., 1968, 22 (3). [p.326, Figs.14-19]. Female (from SE Pacific): 14, habitus (dorsal); 15, anterior end of head (lateral); 16, 4th and 5th thoracic segments (left lateral view); 17, idem (right lateral view); 18, A2; 19, 1st basipodal segment of P4. Nota: Head and 1st thoracic segment fused, 4th and 5th fused. Head witout crest. Genital segment asymmetrical, in dorsal view right side smooth, left side with 2 small swellings. One-pointed rostrum, directed downward. A1 24-segmented (segments 8 and 9 fused), reaching caudal rami. Endopod of A2 about 1/4 of exopo; outer lobe of terminal segment of endopod with 5, inner lobe with 4 setae. Endopod of P1 1-segmented, exopod 2-segmented with 3 straight external spines. Endopod of P2 1-segmented, exopod 3-segmented. Endopods and exopods of P3 and P4 3-segmented. Posterior surface of 1st basipodal segment of P4 with 2 rather strong, unequal spines.
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 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.69, Fig.9, b]. Female: b, setal armature on the posterior face of the 1st inner lobe of basipodal segment 1 of left Mx1 (3 setae, numbered 1 to 3 in a proximal to distal order to compare other species, here seta 4 absent contrary in E. rostrata). Scale bar: 0.1 mm.
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 Euchirella speciosa female: 1 - Genital segment asymmetrical. 2 - Crest absent. 3 - Genital segment with left lateral side swelled (dorsal view). 4 - Coxopodite of P4 with 2 spines. 5 - Endopodal segment 1 of Md without seta. 6 - Endopodal segment 2 of A2 with 5 setae on external lobe and 4 setae on internal lobe. 7 - Genital segment in dorsal view left side with 2 small projections (bilobated).
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 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.68, Fig.8, l]. Euchirella speciosa: Structure and setal complement of endopod 1 of Md (right, posterior). A very minute setal vestige (arrow), as in Euchirella messinensis).
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 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.68, Fig.8, o]. Euchirella speciosa: Accessory setae on endopodite 2 of Md (right appendage in posterior view). No accessory setae, only the regular terminal row of 9 setae present.
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 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Tableau II]. Euchirella speciosa Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).
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 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Tableau II]. Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).
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 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Tableau II]. Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).
| | | | | Compl. Ref.: | | | Lo & al., 2004 (p.89, tab.1) | | | | NZ: | 3 | | |
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Distribution map of Euchirella speciosa by geographical zones
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| | | | | |  Issued from : J.M. Bradford & J.B. Jillett in New Zealand Ocean. Inst. Memoir, 86, 1980. [p.88-89, Figs.65-67].
Distribution of several species of Euchirella in the Tasman Sea and around New Zealand.
Nota: Euchirella indica (= Euchirella massinensis indica). |
| | | | Loc: | | | SE Pacif. (off Juan Fernandez Is.), New Zealand, China Seas (East China Sea), Taiwan (N: Mienhua Canyon).
Type locality: 31°S, 90°W. | | | | N: | 4 | | | | Lg.: | | | (100) F: 4,92; (201) F: 5,1-4,4; (242) F: 4,9; (1257) F: 4,6-5,1; {F: 4,40-5,10} | | | | Rem.: | epi-bathypelagic.
This species is very like E. venusta.
For Grice & Hulsemann (1968, p.525) this species closely resembles E. formosa Vervoort, E. indicaVervoort and E. venusta Giesbrecht in the absence of a crest, the number of spines on the 1st basipodal segment of P4, and the number of setae on the lobes of the terminal segment of the endopod of A2.
Lo & al. (2004) seem to have observed this species for the first time in the NW Pacific (Taiwan).
After Vaupel Klein (1984a, p.47) the shape of the genital somite, exhibits a constant and distinct difference with E. venusta in the material examined. | | | Last update : 22/02/2021 | |
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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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