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Marine Planktonic Copepods
Archescolecithrix auropecten  Giesbrecht, 1892   (F,M)
Taxonomy
Order Calanoida
Superfamily Clausocalanoidea
Family Scolecitrichidae
Genus Archescolecithrix

Synonymy

Scolecithrix auropecten Giesbrecht, 1892 (p.266, 284, 775, figs.F); Giesbrecht & Schmeil, 1898 (p.45, Rem. F, fig.F); Thompson & Scott, 1903 (p.234, 245); Rose, 1924, p.10); Farran, 1926 (p.260, Rem.); Bradford, 1973 (p.145);
Scolecithricella auropecten : A. Scott, 1909 (p.89, Rem.F); Rose, 1933 a (p.158, figs.F); Wilson, 1942 a (p.207, fig.F); Sewell, 1948 (p.349, 502, 546, 557, 566); Vervoort, 1951 (p.101, figs.F, Rem.); V.N. Greze, 1963 a (tabl.2); Fleminger, 1967 a (p. XII); Grice & Hulsemann, 1967 (p.16); Park, 1968 (p.555, figs.F, Rem.: anormality); Corral Estrada, 1970 (p.164, figs.F, Rem.); Roe, 1972 (p.277, tabl.1, tabl.2); Corral Estrada & Pereiro Muñoz, 1974 (tab.I); Deevey & Brooks, 1977 (p.256, tab.2, Station "S"); Kovalev & Shmeleva, 1982 (p.84); Roe, 1984 (p.357); Almeida Prado Por, 1985 (p.250); Brenning, 1985 a (p.28, Table 2); Lozano Soldevilla & al., 1988 (p.59); Echelman & Fishelson, 1990 a (tab.2); Shih & Young, 1995 (p.73); Ayon & al., 2008 (p.238, Table 4: Peruvian samples); Galbraith, 2009 (pers. comm.); Lidvanov & al., 2013 (p.290, Table 2, % composition);
Scolecithricella (Amallothrix) auropecten : Vervoort, 1951 (p.101, figs.F);
Amallothrix auropecten : Rose, 1942 (p.126, 150, Redescr. F,M, figs.F, M: n°1, Rem.); Sewell, 1948 (p.508); Mazza, 1966 (p.71); Roe, 1975 (p.333, figs.F, Rem.); Vives, 1982 (p.292); Bradford & al., 1983 (p.78, 79, figs.F,M); Scotto di Carlo & Ianora, 1983 (p.150); Scotto di Carlo & al., 1984 (1043); Lozano Soldevilla & al., 1988 (p.58); Mageed, 2006 (p.171, Table 4);
no Scolecithricella auropecten : C.B. Wilson, 1950 (p.332, figs.F,M); Deevey, 1971 (p.224); Brenning, 1984 (p.5, Rem.);

References

Vyshkvartzeva, 1989 (p.5, 9, Redescr.F,M, figs.F,M); Scotto di Carlo & al., 1991 (p.271); Boxshall & Halsey, 2004 (p.189: fig.F); Vives & Shmeleva, 2007 (p.741, figs.F,M, Rem.)

Figures

Plate 1 issued from : H.S.J. Roe in Bull. British Mus. (Natural History) Zool., London, 1975, 28 (7). [p.334, Fig.19]. As Amallothrix auropecten.
Female: a, habitus (dorsal); b, rostrum (left lateral side); c, idem (ventral); d, last thoracic segment and urosome (left lateral side); e, A2; f, mandibular palp; g, Mx1; h, Mx2; i, Mxp; j, P1; k, P2; l, P3; m, P4; n, P5.
bar scale 0.1 mm unless indicated.
Plate 2 Issued from : T.S. Park in Fishery Bull. Fish Wild. Serv. U.S., 1968, 66 (3). [p.556, Pl.9, Figs.1-4]. As Scolecithricella auropecten.
Female: 1, habitus (left lateral side); 2, P5; 3-4, abnormal P5 (from two different specimens but appeared to be identical with the normal specimens in all other details).
Plate 3 issued from : J.M. Bradford, L. Haakonssen & J.B. Jillett in Mem. N.Z. Oceanogr. Inst., 1983, 90. [p.80, Fig.44]. As .
Female: A, mtetasome posterolateral corner and urosome (left side); B, forehead (lateral); C, P1; D, endopod of P2.
Nota: The specimen (25°46'S, 170°16'W) agrees with Rose's (1942) description except for a shorter terminal spine of P5.
Plate 4 issued from : J. Corral Estrada in Tesis Doct., Univ. Madrid, A-129, Sec. Biologicas, 1970. [Lam.46, figs.1-5]. As Scolecithricella auropecten.
Female (from Canarias Is.): 1, habitus (dorsal); 2, idem (lateral right side); 3, P1; 4, P2; 5, P5.
Plate 5 issued from : M. Rose in Annls Inst. océanogr., Monaco, 1942, XXI (3). [p.127, Figs.16, 17]. As Amallothrix auropecten.
Female (from Alger Bay, Algeria):habitus (dorsal and lateral, respectively); A1; A2.
Nota: A1 23-segmented, with sketching on the 8th segemnt. A2 with exopodite shorter and narroxer than endopodite.
Plate 6 issued from : M. Rose in Annls Inst. océanogr., Monaco, 1942, XXI (3). [p.1228, Fig.18]. As Amallothrix auropecten.
Female: Md; Mx1 (as Mx); Mx2 (as Mxp1); Mx2 (as Mxp2); Ur, urosome (ventral).
Plate 7 issued from : M. Rose in Annls Inst. océanogr., Monaco, 1942, XXI (3). [p.129, Fig.19]. As Amallothrix auropecten.
Female: P1 to P5; R, rostrum.
Plate 8 issued from : M. Rose in Annls Inst. océanogr., Monaco, 1942, XXI (3). [p.151, Figs.42, 43]. As Amallothrix auropecten.
Male: habitus (dorsal and lateral, respectively); A1; A2; Md; Mx1 (as Mx); Mxp (as Mxp2);
A1 19-segmented; occasionally the number of segments is not the same from side to side in the same individual.
Plate 9 issued from : M. Rose in Annls Inst. océanogr., Monaco, 1942, XXI (3). [p.152, Fig.44]. As Amallothrix auropecten.
Male: Mx2 (as Mxp1); P5.
Plate 10 issued from : M. Rose in Annls Inst. océanogr., Monaco, 1942, XXI (3). [p.153, Fig.45]. As Amallothrix auropecten.
Male: R, rostrum; Ur, rursome (dorsal; as Abd)
Plate 11 issued from : W. Vervoort in Verh. K. ned. Akad. Wet., Afd. Natuurk., 1951, (Sect. 2) 47 (2). [p.102, Fig.54]. As Scolecithricella (Amallothrix) auropecten.
Female (from ± 66°.5S, 11°W): a, habitus (lateral; b, right P5 (anterior).
Nota: The 4th and 5th thoracic segments distinctly separate, on the dorsal surface a fine line of fusion can be ascertained. A1 with the 8th-9th and 24th-25th segments fused; it reaches as far as the line separating the 3rd and 4th thoracic somites, which is considerably shorter than the condition described by Rose (1942, fig.16). The P5, although in agreement with Rose's and Giesbrecht's notes, has the terminal segment almost completely divided into 2 smaller segments, so that the foot appears to be 3-segmented.
Plate 12 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.37 , Figs.3, 10. ]. As Scolecithrix auropecten.
Female: 3, urosome (ventral); 10, habitus (lateral).
Plate 13 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf. 13, Fig.8]. As Scolecithrix auropecten.
Female: 8, Mx1 (part., anterior view).
Plate 14 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf. 13 , Figs. 18, 27]. As Scolecithrix auropecten.
Female: 18, P2 (posterior view); 27, P5.
Plate 15 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. - Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf. 13 , Fig.22]. As Scolecithrix auropecten.
Female: 22, A1 (ventral view).
Plate 16 Issued from : N.V. Vyshkvartseva in Explorations of the Fauna of the Seas. USSR Acad. Sci., 1989, 41 (49). [p.10, Fig.1].
Female (from 10°30'-12°00'N, 133°-134°30'W): 1-2, habitus (dorsal and lateral, respectively); 3, rostrum; 4, genital segment (lateral); 5, urosome; 6, A2; 7, Mx1; 8, Mx2; 9, P5.
Plate 17 Issued from : N.V. Vyshkvartseva in Explorations of the Fauna of the Seas. USSR Acad. Sci., 1989, 41 (49). [p.11, Fig.2].
Female: 1, forehead (lateral); 2, last thoracic segment and urosome (lateral); 3, distal segments of A1; 4, Md palp; 5, Mxp; 6, P1; 7, P2; 8, P3; 9, P4.
Plate 18 Issued from : N.V. Vyshkvartseva in Explorations of the Fauna of the Seas. USSR Acad. Sci., 1989, 41 (49). [p.12, Figs.3].
Male: 1-2, habitus (dorsal and lateral, respectively); 3, forehead (lateral); 4, rostrum (ventral view); 5-6, last thoracic segment and urosome (dorsal and lateral, rspectively); 7, A2; 8, Mx1; 9, Mx2; 10, Mxp; 11, P1; 12, P2; 13, P4; 14, P5; 15, distal part of endopod and exopod of left P5; 16, distal part of exopod of right P5.

Complementary References

Razouls & al., 2000 (p.343, Appendix); Holmes, 2001 (p.58); Khelifi-Touhami & al., 2007 (p.327, Table 1); Schnack-Schiel & al., 2010 (p.2064, Table 2: E Atlantic subtropical/tropical); Mazzocchi & Di Capua, 2010 (p.427); Dorgham & al., 2012 (p.473, Table 4: abundance vs season); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, pers. comm.); Benedetti & al., 2016 (p.159, Table I, fig.1, functional characters); Belmonte, 2018 (p.273, Table I: Italian zones); Chaouadi & Hafferssas, 2018 (p.913, Table II: occurrence).

Distribution

Additional Maps & Charts

Map 6 issued from : U. Brenning in Wiss. Z. Wilhelm-Pieck-Univ. Rostock - 33. Jahrgang 1984. Mat.-nat. wiss. Reihe, 6. [p.6, Fig.2].
Spatial distribution for Scolecithricella auropecten ( = Archeoscolecithrix auropecten) and other scolecithrids from 8° S - 26° N; 16°- 20° W, for different expeditions (V1: Dec. 1972- Jan. 1973; V2: Feb/Mar. 1973; VI: May 1974; IV: Jun./Jul. 1972).

Localisations

Antarct. (Peninsula, SE Atlant.), SE Atlant., Cape Verde Is., off Morocco-Mauritania, Canary Is., Sargasso Sea, off Bermuda: Station ‘’ S’’ (32°10’N, 64°30’W), off W Cape Finisterre, Bay of Biscay, off W Ireland, Medit. (Sidi Fredj coast, W Basin, G. of Annaba, Monaco, Ligurian Sea, Napoli, S Adriatic Sea: G. of Manfredonia, Ionian Sea, Bardawill Lagoon), G. of Aqaba, off Sharm El-Sheikh, Red Sea, W Indian, Indonesia-Malaysia, China Seas (South China Sea), [ Philippines, South China Sea, Japan, Hawaii, off British Columbia (rare), Peru, SE Pacif. (in C.B. Wilson, 1950) ], off N Hawaii, off NE New Zealand, California.

Quotations

N: 45

Dimensions (mm)

(8) F: 2,05-1,9; (9) F: 2,2; (31) F: 2,75; (38) F: 2,04-2; (47) F: 1,8; (72) F: 2,4-2,11; (147) F: 2,5; M: 2,3; (180) F: 2,05; (199) M: 2,43-2,2; (525) F: 2,12-1,92; M: 2-1,95; (1111) F: 2,21; {F: 1,80-2,75; M: 1,95-2,43}

Remarks

meso-bathypelagic. Sargasso Sea: 1000-1500 m (Deevey & Brooks, 1977, station "S");
For Vervoort (1951, p.103) this species has not yet been recorded from the Antarctic; the most Southerly record being in the SE Pacific by C.B. Wilson (1942).
Last update : 28/02/2020

Contributor Remarks

 to add or edit your remark        


By Mariluz Fernandez de Puelles 2023-10-26 15:29:13    ( Citation of this remark )
 We found several speciments of A. auropecten at  400 m depth during the day  (27.5ºN ; 25ºW) SE of Azores 

By Mariluz Fernandez de Puelles 2023-10-26 17:08:43    ( Citation of this remark )
 The speciments were found in February 11, 2023