Planche 1 issued from : T. Park in Contr. Mar. Sci., 1976, 20. [p.108, Fig.1] Female: a, b, habitus (dorsal and lateral, respectively); c, d, posterior part of metasome and urosome (dorsal and lateral, respectively); e, A2; f, Md; g, coxa of fourth leg (posterior).
Male: h, i, forehead (dorsal and lateral, respectively); j, fifth pair of legs (anterior); k, exopod of right fifth leg (anterior); l, exopod of left fifth leg (anterior).
Planche 2 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XXI, figs.1-7]. As Euchirella brevis. Female: 1, habitus with eggs (dorsal); 2, idem (lateral left side); 3, forehead (lateral); 4, A2; 5, Md; 6, basipodal segment of P4; 7, inner end of 1st basdipodal segment of P4.
Planche 3 issued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.236, Fig.21]. As Euchirella brevis. Female: a, postrior part cephalothorax and urosome (lateral, left side); b, A2; c, Md (mandibular palp); d, Mx1; e, basal portion of Mxp; f, P1; g, basal segment of P4.
Planche 4 issued from : Z. Zheng, S. Li, S.J. Li & B. Chen in Marine planktonic copepods in Chinese waters. Shanghai Sc. Techn. Press, 1982 [p.34, Fig.19]. Female: a, habitus (dorsal); b, forehead (lateral); c, urosome (lateral, right side); d, Md; e, A2; f, P1; g, basipodal segments 1 and 2 of P4. Scale bar in mm.
Planche 5 issued from : T. Mori in The pelagic Copepoda from the neighbouring waters of Japan, 1937 (2nd edit., 1964). [Pl.18, Figs.1-9]. Female: 1, habitus (dorsal); 3, A2; 4, forehead (lateral); 5, P1; 9, A1.
Male: 2, habitus (dorsal); 6, P2; 7, P5; 8, P4.
Planche 6 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.74, Fig.12, d]. Female: d, setal armature of exopod of Mx1 (left one in posterior aspect; all setae are plumose). Nota: 10 setae condition (see E. formosa p.74, fig.12 a). Nota: 8 setae-condition.
Planche 7 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.63, Fig.5, k]. Female: k, setal armature of basipodite 2 of A2 (note: no seta present). Scale bar 0.1 mm.
Planche 8 issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1905, 2 (4). [p.155, Fig.21]; Male (from San Diego Region): a, habitus (lateral); b, P5. Nota: Head without crest.
Planche 9 issued from : C.B. Wilson in Bull. U.S. natn Mus., 100, 14 (4). [Pl.8, Fig.84]. As Euchirella bella. Male (from Pacific): 84, P5.
Planche 10 issued from : C.B. Wilson in Bull. U.S. natn Mus., 100, 14 (4). [Pl.19, Fig.247]. As Euchirella bella. Male (from Pacific): 247, P5.
Planche 11 issued from : M. Rose in Result. Camp. Scient. Prince Albert Ier, Monaco, 1929, 78. [Pl. I, Figs.3]. As Euchirella amöna. Male (from 31°08'N23°58'W): D', habitus (dorsal); L', idem (lateral); Ab', urosome (dorsal); A'2, A2; p, Md (mandibular palp); Mxp (as Mxp'2).
Planche 12 issued from : M. Rose in Result. Camp. Scient. Prince Albert Ier, Monaco, 1929, 78. [Pl. I, Figs.3]. As Euchirella amöna. Male: A'1, A1; P1 to P4; P5; ted, terminal segment of exopodite of right P5; teg, terminal segment of left P5.
Planche 13 issued from : G.D. Grice in Fish. Bull. Fish and Wildl. Ser., 1962, 61. [p.195, Pl.10, Figs.5-10]. Female (from equatorial Pacific): 5, A2; 6, Md; 7, 1st basipodal segment of P4.
Male: 8-9, (dorsal and lateral, respectively); 10, P5.
Planche 14 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.80, Fig.16, s]. Female: o, arrangement of medial spines on the posterior face of basal segment 1 of left P4 . Scale bar 0.067 mm. Nota: 5 minute, separately inserting, subequal spines.
Planche 15 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.69, Fig.9, c]. Female: c, setal armature on the posterior face of the 1st inner lobe of basipodal segment 1 of left Mx1 (2 setae, numbered 1 to 2 in a proximal to distal order to compare other species, here setae 2 and 4 absent contrary with 4 setae in E. rostrata. Scale bar: 0.1 mm.
Planche 16 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.65, Fig.6 g]. Euchirella anoena: a, Setal armature of endopodte 2+3 of A2. Conditions are expressed are expressed in formulae as follows: number of setae in regular row on proximal lobe / relative development of seta in position no. 9 on this lobe / number of setae in approximately linear row on terminal lobe / relative development of appendicular seta no. 7 and its supporting pedestral (absent, vestigial, moderate or well developed: see Table I, p.87 and Table II, p.93). upper and lower lobes = proximal and terminal lobes (details of right appendage shown in medial aspect. Scale bar = 0.133 mm.
Nota: Condition 1/1/3/0 in the amoena-group.
Planche 17 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1967, 1, Crustacea, 1: Copepoda. [p.46, Figs.251, 252]. Female (from Florida Current): 251, basipodite 1 (= coxa) of P4. Nota: Cxa of P4 with 4 minute spines on the inner margin.
Male: 252, habitus (dorsal).
Planche 18 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1967, 1, Crustacea, 1: Copepoda. [p.47, Fig.256]. Female (from Florida Current): 256, Md (mandibular palp).
Planche 19 Issued from : E.L. Markhaseva in Proc. Zool. Inst., RAN, 1996, 268. [p.148, Fig.112]. Female (from 17°N, 18°W).
Planche 20 Issued from : E.L. Markhaseva in Proc. Zool. Inst., RAN, 1996, 268. [p.148, Fig.112]. After Bradford & Jillett, 1980. Male: P5; habitus (lateral).
Nota male from Marhhaseva (1996, p.149) after Tanaka & Omori (1969) with modifications: Crest present, very low. Exupodal segment 2 of A2 with 6 setae on each lobe. P5 biramous. Endopod of left P5 rudimentary, not reaching proximal border of right protopodite. Endopod of right P5 with 4 (in original specimen with 3) projections, exopod also with 4 projections.
Planche 21Euchirella amoena female: 1 - Genital segment symmetrical. 2 - Crest absent. Rostrum not rudimentary. 3 - Md palp base with chitinous projection. Coxopodite of P4 with 5 very poorly visible small spines. Endopodal segment 2 of A2 with 3 setae on external lobe and 1 seta on internal lobe. Rostrum small.
Planche 22 Issued from : J.M. Bradford & J.B. Jillett inNew Zealand Ocean. Inst. Memoir, 86, 1980. [p.33, Fig.19]. Male (from off N New Zealand): C, habitus (lateral); D, P5.
Nota: Exopodal segment 1 of right P5 with stout spine at midlength.
Planche 23Euchirella amoena male: 1 - P5 uniramous on left P5 and large biramous on right P5. Exopodal segment 2 and endopod of right P5 elongated and sharpened in their distal parts forming tongs. Endopod of right P5 significantly exceeding distal border of exopodal segment 1 of right P5. Crest absent. Robust spine present near place where from exopod of right P5 begins.
Planche 24 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.68, Fig.8, g]. Euchirella amoena: Structure and setal armature of basipode 2 (right appendage in lateral aspect). With prominent, hook-shaped outgrowth.
Planche 25 Issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.70, Fig.10, g]. Euchirella amoena: Setal armature on proximo-distal corner of basis (Ba2), adjacent to the endopod (Ri) of Mx1 (left appendage in postrior view; secondary structures on large setae are not shown, and neither are the hairs on the basis proper). Only 1 small seta present, as in Euchirella bella (Fig.10h).
Planche 26 Issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.72, Fig.11, b]. Euchirella amoena. Structure of Mx1, terminal configuration of setae plus the 'blunt tooth (= tubular pore) on the endite of basis (Ba2) (plumosity and/or spinules on setae, as well as hairs on lobe, omitted, right appendage in anterior view). Showing the usual Euchirella complement of, from anterior to posterior: short proximal seta (p), long central seta (c), blunt tooth (dotted outline) and shortest, distal seta (d). Contrary to E. curticauda the proximal seta (p) absent in E. amoena.
Planche 27 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II ]. Euchirella amoena 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).
Planche 28 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.94, Table II (cont' d) ]. Euchirella amoena 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).
Planche 29 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.95, Table II (cont' d) ]. Euchirella amoena 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).
Carte 5 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).
South Africa (E), off St. Helena Is. (SW & N), off Ascension Is., G. of Guinea, Cape Verde Is., off NW Cape Verde Is., off Morocco-Mauritania, Great Meteor Seamount, Canary Is., off Madeira, Azores, off Bay of Biscay, Uruguay (continental shelf), S Brazil, off Amazon, Venezuela, G. of Mexico, Yucatan, Barbada Is., Caribbean, Cuba, Florida, off Bermuda: Station "S" (32°10'N, 64°30'W), Sargasso Sea, Iceland, off N Scotland, Ibero-moroccan Bay, Medit. (Alboran Sea), off SW Sri Lanka, Natal, Indian, India (Lawson's Bay), Bay of Bengal, Andaman Sea, W Australia, Indonesia-Malaysia, Philippines, Pacif. (equatorial), Pacific (central gyres: N and S), Bikini Is., China Seas (East China Sea, South China Sea), Taiwan (SW, N, E), Japan, S. Hokkaido, SW Bering Sea, Alaska, Pacif. (central subtropical N), off S Clipperton Is., California, W Baja California, W Costa Rica, Bahia Cupica (Colombia); off Peru, off Galapagos, Pacif. (W equatorial), Australia, New Zealand, Pacif. (SE tropical), Chile (N-S, off Santiago).
Type locality: Pacific (equatorial).
Citations
N: 108 (S Atlant.: 14; N Atlant.: 32; Medit.: 33; Red Sea: 1; Indian: 13, Pacif.: 14)
The mean female size is 3.5395 mm (n = 22; SD = 0.4649), and the mean male size is 3.2985 mm (n = 20; SD = 0.2944). The size ratio (male : female) is 0.955 (n = 10; SD = 0.0668).
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