Caligus bifurcatus Pearse, 1952

Hayes, Polly, Justine, Jean-Lou & Boxshall, Geoffrey A., 2012, The genus Caligus Müller, 1785 (Copepoda: Siphonostomatoida): two new species from reef associated fishes in New Caledonia, and some nomenclatural problems resolved, Zootaxa 3534, pp. 21-39 : 31

publication ID

https://doi.org/ 10.5281/zenodo.210824

DOI

https://doi.org/10.5281/zenodo.6167089

persistent identifier

https://treatment.plazi.org/id/9B238789-FFE2-807C-768B-F9E9FA31FF34

treatment provided by

Plazi

scientific name

Caligus bifurcatus Pearse, 1952
status

 

Caligus bifurcatus Pearse, 1952

Caligus bifurcatus is the only species in the genus described as possessing bifurcate tines on the sternal furca. A sternal furca with bifurcate tines can be found in some species of other caligid genera, including Lepeophtheirus , Tuxophorus Wilson, 1908 , and Gloiopotes Steenstrup & Lütken, 1861 , but not in any other Caligus . In the species level catalogue of Caligus produced by Margolis et al. (1975) there is no subsequent record of C. bifurcatus since its original description ( Pearse, 1952). The type host of this species is the Live Sharksucker Echeneis naucrates Linnaeus, 1758 View in CoL , which is one of the two original hosts of another caligid, Tuxophorus caligodes Wilson, 1908 ( Wilson, 1908) .

Tuxophorus caligodes is characterised by the possession of bifurcate tines on the sternal furca, but it also has distinctive, paired dorso-lateral plates originating on the fourth pedigerous somite. Such lobes were not mentioned by Pearse in his description of C. bifurcatus but the outline of these plates can be discerned in his figure ( Pearse, 1952: figure 18). In addition to the precise shape of the sternal furca, other characters are shared between these two taxa, such as the presence of posterolateral lobes on the genital complex of the adult female, the shape of the female abdomen, and the form and armature of leg 4, including the unusually robust protopodal segment. Caligus bifurcatus Pearse, 1952 is here recognised as a junior subjective synonym of Tuxophorus caligodes Wilson, 1908 .

Kingdom

Animalia

Phylum

Arthropoda

Class

Maxillopoda

Order

Siphonostomatoida

Family

Caligidae

Genus

Caligus

Loc

Caligus bifurcatus Pearse, 1952

Hayes, Polly, Justine, Jean-Lou & Boxshall, Geoffrey A. 2012
2012
Loc

Caligus bifurcatus

Pearse 1952
1952
Loc

Tuxophorus

Wilson 1908
1908
Loc

Tuxophorus caligodes Wilson, 1908 ( Wilson, 1908 )

Wilson, 1908 (Wilson 1908
1908
Loc

Tuxophorus caligodes

Wilson 1908
1908
Loc

Gloiopotes Steenstrup & Lütken, 1861

Steenstrup & Lutken 1861
1861
Loc

Echeneis naucrates

Linnaeus 1758
1758
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