Caligus laticaudus Shiino, 1960

Soler-Jimenez, Lilia C., Morales-Serna, F. Neptali, Aguirre-Macedo, Ma. Leopoldina, McLaughlin, John P., Jaramillo, Alejandra G., Shaw, Jenny C., James, Anna K., Hechinger, Ryan F., Kuris, Armand M., Lafferty, Kevin D. & Vidal-Martinez, Victor M., 2019, Parasitic copepods (Crustacea, Hexanauplia) on fishes from the lagoon flats of Palmyra Atoll, Central Pacific, ZooKeys 833, pp. 85-106 : 85

Caligus laticaudus Shiino, 1960

Type host.

Pagrus major (as Pagrosomus major ) (Temminck & Schlegel) ( Sparidae ).

Other host and localities.

Pagrus major (as Pagrosomus major ) ( Sparidae ) from Japan ( Shiino 1960). Acanthurus olivaceus Bloch & Schneider ( Acanthuridae ) from Eniwetok Atoll; Dentex tumifrons (Temminck & Schlegel) ( Sparidae ) from Korea; Liza haematocheila (Temminck & Schlegel) ( Mugilidae ) from China; Caranx melampygus ( Carangidae ), Lutjanus vitta (Quoy & Gaimard), Lutjanus russellii (Bleeker) ( Lutjanidae ) and Parapristipoma trilineatum (Thunberg) ( Haemulidae ), Polydactylus plebeius (Broussonet) and Polydactylus sextarius (Bloch & Schneider) ( Polynemidae ) from Taiwan; Parastomateus niger (Bloch) ( Carangidae ) from Malaysia; Filimanus heptadactyla (Cuvier) ( Polynemidae ) and Rhabdosargus sarba ( Forsskål) ( Sparidae ) from India ( Ho and Lin 2004, Moon and Kim 2012). Gnathanodon speciosus ( Forsskål), Caranx sexfasciatus Quoy & Gaimard ( Carangidae ), Heniochus acuminatus (Linnaeus) ( Chaetodontidae ), Kyphosus bigibbus Lacepède ( Kiphosidae ), Pseudolabrus guentheri Bleeker ( Labridae ), Pagrus auratus (Forster) ( Sparidae ) from Australia ( Boxshall 2018).

Current host.

Rhinecanthus aculeatus (Linnaeus), Pseudobalistes flavimarginatus ( Rüppell) ( Balistidae ), Mulloidichthys flavolineatus , Upeneus taeniopterus Cuvier ( Mullidae ), Chrysiptera glauca (Cuvier) ( Pomacentridae ) and Epinephalus merra Bloch ( Serranidae ).

Site of infection.

Gills..

Prevalence and mean intensity.

5.6 and 1 (n = 18) to Rhinecanthus aculeatus ; 50 and 21 ± 26.9 (n = 4) to Pseudobalistes flavimarginatus ; 13.5 and 1.5 ± 0.5 (n = 52) to Mulloidichthys flavolineatus ; 60 and 2.7 ± 2.1 (n = 5) to Upeneus taeniopterus ; 3.33 and 2 (n = 3) to Chrysiptera glauca ; 50 and 1 (n = 2) to Epinephalus merra .

Specimens deposited.

CHCM No. 566 (voucher) (1 vial, 2 specimens ♂ ♀) (from M. flavolineatus ). USNM No. 1550600 (voucher) (1 vial, 1 specimen ♂) (from M. flavolineatus ).

Remarks.

Ho and Lin (2004) indicated that the female of C. laticaudus may be identified by a combination of five characteristics (the corpus of the maxilliped with a large, conical protrusion in the myxal region; the terminal elements on last segment of exopod of leg 1 lack accessory processes; outermost element 1 of the four terminal elements of leg 1 exopod about one third of the length of other three elements which are subequal in length; formula of the 3-segmented exopod of leg 4 as I-0; I-0; III; and the terminal three spines on leg 4 subequal in length). Our results support the view that C. laticaudus infects fishes only from the Indo-West Pacific.