Species Card of Copepod
Cyclopoida ( Order )
    Corycaeidae ( Family )
        Farranula ( Genus )
Farranula longicaudis  (Dana, 1849)   (F)
Syn.: Corycäus longicaudis Dana, 1849; 1852;
Corycäus longicaudis : Giesbrecht, 1891; 1892 (p.661, 675, figs.F);
Corycaeus (Corycella) longicaudis : Tanaka, 1960 (p.90, figs.F [? = juv.]); ? Chen & al., 1974 (p.66, figs.F[ ? = juv.]); Zheng & al., 1982 (p.151, figs.F); Zuo & al., 2006 (p.163: tab.1)
Corycaeus longicaudis : Noda & al., 1998 (p.55, Table 3, occurrence);
Wi & Soh, 2013 (p.1, Table I)
Species Farranula longicaudis - Plate 1 of morphological figuresissued from : Z. Zheng, S. Li, S.J. Li & B. Chen in Marine planktonic copepods in Chinese waters. Shanghai Sc. Techn. Press, 1982 [p.152, Fig.97].
Female: a-b, habius (dorsal and lateral, respectively); c, A2.

Species Farranula longicaudis - Plate 2 of morphological figuresIssued 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.51, Figs.19, 27]. As Corycäus longicaudis.
Female : 19, habitus (dorsal); 27, idem (lateral).

Species Farranula longicaudis - Plate 3 of morphological figuresIssued from : J.H. Wi & H.Y. Soh in J. Nat. Hist., 2013. [p.3, Table I].
Length and width proportions of body segments of Farranula longicaudis.

Nota: Compare with other species of Farranula (on line: http://dx.doi.org/10.1080/00222933.2012.708454).

Species Farranula longicaudis - Plate 4 of morphological figuresIssued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [Pl. XXXIXI, 1-4]. As Corycaeus (Corycella) longicaudis with doubt.
Female (from 13°44'S, 68°22'E): 1, habitus (dorsal); 2, last thoracic segment and abdomen (lateral); 3, abdomen (dorsal); 4, P4.

Nota: Cephalothorax and abdomen in the proportional lengths 68 to 32.
2nd thoracic segment with a slight dorsal hump.
Wing-like expansion of the 4th thoracic segmlent extends about to the middle of the genital segment.
Abdominal segment and caudal rami in the proportional lengths 60 to 40.
Genital segment elongate ovate, about 2.3 times as long as broad, and about 3 times as long as high.
Caudal rami 6 times as long as broad.
In P1 to P3 the 2nd and 3rd exopodal segments finely serrated.

Remaks: In longicaudis the ventral pad of the genital segment is smooth, whereas it is setose in the present specimen

NZ: 3

Distribution map of Farranula longicaudis by geographical zones
Atlant. (tropical), Sri Lanka (Pearl Oyster Bank), Indian (west subtropical), S Japan (Kuchinoerabu Is. in Noda & al., 1998 (Table 3)
N: 6
(66) F: 0,93; (1023) F: 0,94; {F: 0,93-0,94}
Rem.: Considered by some authors as a juvenile form from Coryceaus speciosus.
Last update : 17/01/2020
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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 May 25, 2024]

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