Corycaeus (Onychocorycaeus) pacificus - Fiche d'espèce

Corycaeus (Onychocorycaeus) pacificus F. Dahl, 1894 (F,M)

Taxonomy

Ordre Cyclopoida

détails

Famille Corycaeidae

détails

Genre Corycaeus

détails liste des espèces pour ce genre

Sub-Genus Onychocorycaeus

details

Abréviations ou symboles

Synonymie

Corycaeus catus : Mori, 1937 (1964) (p.135, Pl.74: figs.F,M);
C. obtusus : Farran, 1911 a (p.291);
Onychocorycaeus pacificus: Dessier, 1983 (p.89, Tableau 1, 2, Rem., %); Boxshall & Halsey, 2004 (p.494), McKinnon & al., 2008 (p.844: Tab.1); Lan Y.-C. & al., 2009 (p.1, Table 2, % vs hydrogaphic conditions); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, comm. pers.)

Références

Liste des auteurs étudiés

F. Dahl, 1894 (p.73); M. Dahl, 1912 (p.103, figs.F,M); Früchtl, 1924 b (p.95); Farran, 1936 a (p.139, Rem.); Dakin & Colefax, 1940 (p.113, figs.M); Sewell, 1947 (p.285, Rem.F,M); Tanaka, 1957 (p.95, figs.F,M); 1960 (p.85, figs. F); Tanaka, 1964 (p.16, figs.F,M, Rem.); Cervigon, 1964 (p.179, figs.F,M); Chen & al., 1974 (p.63, figs.F,M); Kang & al., 1990 (p.53, figs.F,M); Kim & al., 1993 (p.271); Chihara & Murano, 1997 (p.965, Pl.216, 217: F,M); Bradford-Grieve & al., 1999 (p.888, 975, figs.F,M); Al-Yamani & Prusova, 2003 (p.143, figs.F);

Figures

Planche 1 issued from : Tanaka O. in Scient. Rep. Jap. Antarct. Res. Exped., 1964, (E) 22. [Pl. VIII].
Female: a, habitus (dorsal); b, last thoracic segment and urosome (left lateral side); c, A2; d, distal segment of endopod of P2; e, P5.

Male: f, habitus (dorsal); g, last thoracic segment and urosome (left lateral side); h, A2; i, Mxp.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 2 of morphological figures

Planche 2 issued from : O. Tanaka in J. Fac. Agricult. Kyushu Univ., 1957, 11 (1). [Pl.9, Figs.13-20].
Female (from Japanese waters): 13, habitus (dorsal); 14, urosome (lateral right side); 15, A2; 16, P4; 17, terminal spine of exopod of P2.
Nota: The abdominal segments and furca in the proportional lengths 56:22:22

Male: 18, habitus (dorsal); 19, urosome (lateral right side); 20, A2.
Nota: The abdominal segments and furca in the proportional lengths 54:21:25. Genital segment oval, 1.5 times as long as wide (26:17), devoided of ventral hook. Anal segment about 2 times as long as wide (11:6), wider at the proximal. Furcal rami 8 times as long as wide (12:1.5).

Species Corycaeus (Onychocorycaeus) pacificus - Planche 3 of morphological figures

Planche 3 issued from : Q.-c Chen & S.-z. Zhang & C.-s. Zhu in Studia Marina Sinica, 1974, 9. [Pl.21, Figs.1-7].
Female (from China Seas): 1, habitus (dorsal); 2, A2; 3, terminal spines of exopod 3 of P2; 4, P4.

Male: 5, habitus (dorsal); 6, last portion of prosome and urosome (lateral left side); 7, A2.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 4 of morphological figures

Planche 4 issued from : F.Y. Al-Yamani & I. Prusova in Common Copepods Northwestern Arabian Gulf : Identification Guide. Kuwait Institute for Scientific Research, 2003. [p.142, Fig.55].
Female: A, habitus (dorsal); B, idem (lateral left side); C, urosome (dorsal); D, idem (lateral left side); E, A2; F, P4.
Nota: Proportional lengths of urosomites and caudal rami 48:19:19. A2 with marginal spine of basipod 2 about 3 times shorter yhat of basipod 1.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 5 of morphological figures

Planche 5 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.XIV, Figs.1, 2, 3, 4].
Female: 1, habitus (dorsal); 2, idem (lateral right side); 3, idem (dorsal); 4, lateral left side).

Species Corycaeus (Onychocorycaeus) pacificus - Planche 6 of morphological figures

Planche 6 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.XIV, Fig.7].
Female: 7, A2.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 7 of morphological figures

Planche 7 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.XIV, Figs.8, 9].
Female: 8, endopod of P2; 9, P4.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 8 of morphological figures

Planche 8 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.XIV, Figs.5, 6].
Male: 5, habitus (dorsal); 6, idem (lateral right side).

Species Corycaeus (Onychocorycaeus) pacificus - Planche 9 of morphological figures

Planche 9 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.XIV, Fig.10].
Male: 10, A2.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 10 of morphological figures

Planche 10 issued from : F. Cervigon iin Mem. Soc. Cienc. nat. La Salle, 1964, 24 (68). [p.182, Lam.13]. As Onychocorycaeus pacificus.
Female (from Venezuela): 1, habitus (dorsal); 2, abdomen (lateral); 3, A2; 4, P4.

Nota: Lengths prosome: 0.75-0.78; lengths urosome: 0.40-0.43. Lengths ratio genital , anal segments and caudal rami 55:22:22; 54:24:22 and 58:21:21

Species Corycaeus (Onychocorycaeus) pacificus - Planche 11 of morphological figures

Planche 11 issued from : F. Cervigon iin Mem. Soc. Cienc. nat. La Salle, 1964, 24 (68). [p.183, Lam.14]. As Onychocorycaeus pacificus.
Male: 1, habitus (dorsal); 2, abdomen (lateral); 3, A2; 4, P4.

Nota: Lengths prosome: 0.63-0.68; lengths urosome: 0.50-0.56. Lengths ratio genital , anal segments and caudal rami 54:22:24; 52:23:25 and 49:24:27.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 12 of morphological figures

Planche 12 issued from : Y.S. Kang, S.-H. Huh & S.S. Lee in J. Ocanol. Soc. Korea, 1990, 25 (2). [Pl. 4, Figs.A-B].
Female (from Korean waters): A, habitus (dorsal); B, P3.

Nota: Cephalothorax 5-segmented. 3rd thoracic segment swollen large, and lateral points extended to 3/4 the genital segment. Lateral points of 4th thoracic segment very short and dull. Genital segment longer than the caudal rami. Caudal rami 4 times longer than width. Apical spine of exopod of P2 with 2 teeth on the inner anterior side. endopod of P4 with one small prominance with 1 long seta.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 13 of morphological figures

Planche 13 issued from : Y.S. Kang, S.-H. Huh & S.S. Lee in J. Ocanol. Soc. Korea, 1990, 25 (2). [Pl. 4, Figs.C-D].
Male: C, habitus (dorsal); D, genital segment (lateral, left side).

Nota: 3rd thoracic segment fused with the 4th. Lateral points of 3rd thoracic segment shorter than 1/2 the length of the genital segment. Genital segment with an oval form. Caudal rami 7 times longer than width.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 14 of morphological figures

Planche 14 issued from : T. Mori in The Pelagic copepoda from the neighbouring waters of Japan, 1937 (1964). [Pl. 74, Figs.1-3]. As Corycaeus catus
Female: 1, habitus (dorsal); 2, P4; 3, A2.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 15 of morphological figures

Planche 15 issued from : T. Mori in The Pelagic copepoda from the neighbouring waters of Japan, 1937 (1964). [Pl. 74, Figs.4-7]. As Corycaeus catus.
Male: 4-5, habitus (lateral and dorsal, respectively); 6, A2.; 7, P4.

Species Corycaeus (Onychocorycaeus) pacificus - Planche 16 of morphological figures

Planche 16 Issued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [Pl. XXXVII, 1-3].
Female (from Indian Ocean): 1, habitus (dorsal); 2, abdomen (dorsal); 3, same (lateral).

Nota: Cephalothorax and abdomen in the proportional lengths 68 to 32.
Lateral process of the 4th thoracic segment narrowly rounded, not sharply pointed.
Abdominal segments and caudal rami in the proportional lengths 57 : 21 : 22 = 100.
Anal segment tapers gradually toward the distal, and about as long as it is broad at the anterior border.

Characters male: Cephalothorax and abdomen in the proportional lengths 58 to 42.
Wing-like expansion of the 4th thoracic segment short, terminates into a small knob which is rounded at the apex.
Abdominal segments and caudal rami in the proportional lengths 54 : 21 : 25 = 100.
Genital segment 1.7 times as long as broad (51 : 31); ventral hook absent; cylindrical part about half the length of the posterior border of the segment (11 : 5).
Anal segment with parallell lateral margins, and about 2 times as long as it is broad at the anterior border of the segment; the posterior border of the segment where the caudal ramus articulates on each side is armed with 2 groups of spinules.
Caudal rami 8 times as long as broad.

Références complémentaires

Liste des auteurs étudiés

Wilson, 1942 a (p.182); Sewell, 1948 (p.393); C.B. Wilson, 1950 (p.195); Fagetti, 1962 (p.53); De Decker, 1964 (p.15, 21, 32); De Decker & Mombeck, 1964 (p.12); Björnberg, 1973 (p.366, 385); Guangshan & Honglin, 1984 (p.118, tab.); Renon, 1987 (tab.2); Othman & al., 1990 (p.561, 564, Table 1); Hirakawa & al., 1990 (tab.3); Yoo, 1991 (tab.1); Shih & Young, 1995 (p.76); Kotani & al., 1996 (tab.2); Go & al., 1997 (tab.1); Park & Choi, 1997 (Appendix); Hsieh & Chiu, 1998 (tab.2); Suarez-Morales & Gasca, 1998 a (p.112); Noda & al., 1998 (p.55, Table 3, occurrence); Lavaniegos & Gonzalez-Navarro, 1999 (p.239, Appx.1); Razouls & al., 2000 (p.343, Appendix); Ueda & al., 2000 (tab.1); Hsieh & al., 2004 (p.398, tab.1); Rezai & al., 2004 (p.490, tab.2); Lan & al., 2004 (p.332, tab.1); Lo & al.*, 2004 (p.218, fig.6); Lo & al., 2004 (p.89, tab.1); Hwang & al., 2006 (p.943, tabl. I); Hwang & al., 2007 (p.25); C.-Y. Lee & al., 2009 (p.151, Tab.2); Hernandez-Trujillo & al., 2010 (p.913, Table 2); Fazeli & al., 2010 (p.153, Table 1); Hsiao S.H. & al., 2011 (p.475, Appendix I); Tseng L.-C. & al., 2011 (p.47, Table 2, occurrences vs mesh sizes); Jang M.-C & al., 2012 (p.37, abundance and seasonal distribution); Tachibana & al., 2013 (p.545, Table 1, seasonal change 2006-2008); Tseng & al., 2013 (p.507, seasonal abundance); Hwang & al., 2014 (p.43, Appendix A: seasonal abundance); Palomares-Garcia & al., 2018 (p.178, Table 1: occurrence);

Distribution

NZ: 14

Carte de distribution de Corycaeus (Onychocorycaeus) pacificus par zones géographiques

Distribution map of Corycaeus (Onychocorycaeus) pacificus for the Zone Indian Ocean

Distribution map of Corycaeus (Onychocorycaeus) pacificus for the Zone China Seas, Vietnam

Distribution map of Corycaeus (Onychocorycaeus) pacificus and for the Zone Sub-Antarctic

Localisations

Glossaire géographique

sub-Antarct. (SW Indian), South Africa (off Cape of Good Hope, E & W), Venezuela (in Legaré, 1964; Cervigon, 1964), Suez Canal, Red Sea, Gulf of Oman, G. of Aden, Arabian Sea, Arabian Gulf (Kuwait), Laccadive Sea., Maldive Is., off Zanzibar, Indian, Straits of Malacca, Is. Aru, Philippines, Viet-Nam, China Seas (Yellow Sea, East China Sea, South China Sea), Taiwan Strait, Taiwan (E, S, SW, W, NW, N, Mienhua Canyon, NE), Okinawa, S & SE Korea, Korea Strait, S Japan Sea, Japan, Kuchinoerabu Is., Tokyo Bay, Aleutian Is., Pacif. (W equatorial), Australia (Great Barrier, New South Wales, North West Cape, G. of Carpentaria), off Hawaii, Pacif. (N tropical), W & S Baja California (Bahia Magdalena, La Paz), G. of California, Clipperton Is., N Chile

Citations

N: 65

Dimensions (mm)

Références de auteurs concernant les dimensions

(11) F: 1,108-1,067; M: 1,03-0,98; (34) F: 1,08-1,04; (66) F: 1,21-1,1; M: 1,12-1,05; (84) F: 1,12; M: 1,04; (104) M: 1,1; (107) F: 1,21-1,12; M: 1,09-0,99; (109) F: 1,17-1,07; M: 1,07; (114) F: 1,22; 1,16; M: 1,11-1,06; (666) F: 1,09; M: 0,97-0,95; (668) F: 1,22-1,16; M: 1,19-1,18; (786) F: 1,15-1,09; M: 1,08; (937) F: 1,07-1,17; {F: 1,04-1,22; M: 0,95-1,19}

Remarques

Sampling depth (sub-Antarct.) : 0-1000 m.
Pour Sewell (1947, p.286) cette forme indo-asiatique et C. ovalis, décrite par Claus,1863 en Méditerranée, ne seraient que des races géographiques de la même espèce.

Voir aussi les remarques en anglais

Dernière mise à jour : 16/09/2021