Corycaeus (Ditrichocorycaeus) amazonicus - Species Card

Corycaeus (Ditrichocorycaeus) amazonicus F. Dahl, 1894 (F,M)

Taxonomy

Order Cyclopoida

details

Family Corycaeidae

details

Genus Corycaeus

details list species for this Genus

Sub-Genus Ditrichocorycaeus

details

Abbreviations or symbols

Synonymy

no Corycaeus amazonicus : Wolfenden, 1905 (1906) (p.1029);
Ditrichococorycaeus amazonicus : Boxshall & Halsey, 2004 (p.495); Miyashita & al., 2009 (p.815, Tabl.II); Miyashita & al., 2012 (p.1557, Table 2: occurrence); Lopez-Ibarra & al., 2014 (p.453, fig.6, biogeographical affinity); Acha & al., 2020 (p.p.1, Table 3: occurrence % vs ecoregions, Table 5: indicator ecoregions).

References

List of the studied authors

F. Dahl, 1894 (p.71); M. Dahl, 1912 (p.69, figs.F,M); Farran, 1929 (p.211, 296); Klevenhusen, 1933 a (p.92, chart 38); Cervigon, 1964 (p.192, figs.F,M); Gonzalez & Bowman, 1965 (p.266, figs.F,M, Rem.); Ramirez, 1969 (p.96, figs.F,M, Rem.); Björnberg, 1972 (figs.,N); Dawson & Knatz, 1980 (p.10, figs.F,M); Björnberg & al., 1981 (p.676, figs.F,M); Sazhina, 1985 (p.95, figs.N); Bowxshall, 1998 (p.223); Bradford-Grieve & al., 1999 (p.888, 974, figs.F,M);

Figures

Plate 1 issued from : F.C. Ramirez in Contr. Inst. Biol. mar., Buenos Aires, 1969, 98. [p.94, Lam. XIX, figs. 160, 162].
Female (from off Mar del Plata): 160, habitus (dorsal).

Male: 162, habitus (dorsal).
Scale bars in mm: 0.3 (160, 162).

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 2 of morphological figures

Plate 2 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.X, Figs.1, 2, 3].
Female: 1, habitus (dorsal); 2, urosome (ventral); 3, habitus (lateral right side).

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 3 of morphological figures

Plate 3 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.X, Fig.6].
Female: 6, A2.

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 4 of morphological figures

Plate 4 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.X, Figs.8, 9].
Female: 8, P4; 9, P2 (d-terminal part of exopod)

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 5 of morphological figures

Plate 5 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.X, Figs.4, 5].
Male: 4,habitus (dorsal); 5, idem (lateral left side).

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 6 of morphological figures

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

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 7 of morphological figures

Plate 7 issued from : M. Dahl in Ergebnisse der Plankton-Expedition der Humboldt-Stiftung. Bd II, G. f1. I. Die Corycaeinen 1912. [Taf.X, Fig.10].
Male: 10, P1 (terùinal part of exopod).

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 8 of morphological figures

Plate 8 issued from : F. Cervigon iin Mem. Soc. Cienc. nat. La Salle, 1964, 24 (68). [p.193, Lam.20]. As Ditrichocorycaeus amazonicus.
Female (from Venezuela): 1-2, habitus (dorsal and lateral, respectively); 3, A2; 4, P4.

Nota: Length prosome: 0.63-0.66; length urosome: 0.34-0.38. Lengths ratio genital , anal segments and caudal rami 35:29:35; 35:27:38 and 34:26:40.

Species Corycaeus (Ditrichocorycaeus) amazonicus - Plate 9 of morphological figures

Plate 9 issued from : F. Cervigon iin Mem. Soc. Cienc. nat. La Salle, 1964, 24 (68). [p.194, Lam.22]. As Ditrichocorycaeus amazonicus.
Male: 1, habitus (dorsal); 2, abdomen (lateral); 3, A2; 4, P4.

Nota: Length prosome: 0.48-0.50; length urosome: 0.33-0.37. Lengths ratio genital , anal segments and caudal rami 46:26:28; 43:24:32 and 41:28:31.

Complementary References

List of the studied authors

Grice, 1956 (p.53); Deevey, 1960 (p.5, Table II, annual abundance); Björnberg, 1963 (p.83, Rem.); Peterson & Miller, 1976 (p.14, Table 1, 3, abundance vs interannual variations); 1977 (p.717, Table 1, seasonal occurrence); Turner & al., 1984 (p.191, feeding); Turner, 1986 (p.289, fig. 7: pellet-content): Santos & Ramirez, 1991 (p.79); Lindo, 1991 (tab.3); Suarez Morales, 1994 b (tab.1); Lopes, 1994 (tab.1); Palomares Garcia & Vera, 1995 (tab.1); Webber & al., 1996 (tab.1); Suarez-Morales & Gasca, 1997 (p.1525); Lopes & al., 1998 (p.195, tab.2); Alvarez-Cadena & al., 1998 (t.1,2,3,4); Hopcroft & Roff, 1996 (p.789, diel egg production); Hopcroft & al., 1998 (tab.2); Suarez-Morales & Gasca, 1998 a (p.112); Lavaniegos & Gonzalez-Navarro, 1999 (p.239, Appx.1); Lopes & al., 1999 (p.215, tab.1); Lopez-Salgado & al., 2000 (tab.1); Dunbar & Webber, 2003 (tab.1); Choi & al., 2005 (p.710: Tab.III); Lavaniegos & Jiménez-Pérez, 2006 (p.140, tab.2, Rem.); Sterza & Fernades, 2006 (p.95, Table 1, occurrence); Lopez Ibarra, 2008 (p.1, Table 1, fig.11); Hernandez-Trujillo & al., 2010 (p.913, Table 2); Hidalgo & al., 2010 (p.2089, Table 2); Medellin-Mora & Navas S., 2010 (p.265, Tab. 2); Lavaniegos & al., 2012 (p. 11, Table 1, fig.3, seasonal abundance, Appendix); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, comm. pers.); Melo Jùnior & al., 2013 (p.363, Table 2, egg production); Fierro Gonzalvez, 2014 (p.1, Tab. 3, 5, occurrence, abundance); Marquez-Rojas & al., 2014 (p.6, Rem., %); Ben Ltaief & al., 2017 (p.1, Table III, Summer relative abundance); Atique & al., 2017 (p.1, Table 1); Palomares-Garcia & al., 2018 (p.178, Table 1: occurrence)

Distribution

NZ: 5

Distribution map of Corycaeus (Ditrichocorycaeus) amazonicus by geographical zones

Distribution map of Corycaeus (Ditrichocorycaeus) amazonicus for the Zone Mediterranean Sea, Black Sea

Localisations

Geographical glossary

off Mar del Plata, Rio de la Plata, Brazil (S, Guarau, Paranagua estuary, Rio de Janeiro, Vitoria Bay, Caeté Estuary, Amazon mouths), G. of Mexico, off W Mississipi River mouth, Caribbean Sea, Caribbean Colombia, Venezuela (Cariaco Gulf), Guajira, Yucatan (Chetumal Bay), Porto Rico, Jamaica (Kingston Harbour), Yucatan, Florida, off Beaufort Inlet, Delaware Bay (outside), E Medit. (G. of Gabes), Oregon (off Newport); California (San Pedro Bay: in Dawson & Knatz, 1980), W Baja California (Bahia Magdalena), La Paz, G. of California, Chile (N-S)

Quotations

N: 47

Dimensions (mm)

References of the authors concerning dimensions

(35) F: 1,02; (237) F: 0,9; M: 0,82; (254) F: 0,9; M: 0,85; (666) F: 1,04; M: 0,84; (668) F: 1,04-0,98; M: 0,87-0,81; {F: 0,90-1,04; M: 0,81-0,87}

Remarks

Coastal. Tropical affinity
After Björnberg (1963, p.83) in Brazilian waters this species occurs sparingly in the samples where C. giesbrechti is very numerous. The greatest percentage of the species occurred in waters where the salinity was under 34.00 p.1000.
Observed in the ballast of ships in San Francisco.
First occurrence in Chilean waters by Hidalgo & al. (2010).
Ben Ltaief & al. (2017 (p.11, Table III) note the first record of this species in the Mediterranean Sea (Tunisia: Gulf of Gabes).
For Boxshall & Halsey (2004, p.491) the subgenus (Dahl, 1912) is considered as full generic status pending phylogenetic revision of the whole family at the generic level.

Last update : 12/02/2021

Contributor Remarks

to add your remark