Caligus productus Dana, 1849

Dippenaar, Susan M. & Sebone, Makwena M., 2025, Caligus (Caligidae: Siphonostomatoida) species off southern Africa with the description of C. pillaii sp. nov., Zootaxa 5686 (2), pp. 151-197 : 172

Caligus productus Dana, 1849 -1852

( Figs 18A–D )

Hosts: Chrysoblephus puniceus (Gilchrist & Thompson) ( Sparidae : Acanthuriformes); Acanthocybium solandri (Cuvier) ; Thunnus albacares (Bonnaterre) ; Katsuwonus pelamis (Linnaeus) ( Scombridae : Scombriformes); Coryphaena hippurus Linnaeus ( Coryphaenidae : Carangiformes)

Locality: Off east coast South Africa (Indian Ocean)

Material examined: 6♀ + 4♂

Material collected: 4♀ + 1♂ from C. puniceus ; 26♀ + 3♂ from A. solandri ; 101♀ + 63♂ from T. albacares ; 109♀ + 34♂ from K. pelamis and 81♀ + 23♂ from C. hippurus

Voucher material: 3♀ + 3♂ ( SAMC-A099206 ) from T. albacares deposited in the Iziko South African Museum , Cape Town, South Africa .

Adult female ( Fig. 18A ) genital complex posterolateral corners prominently lobate; abdomen long, 2-segmented; sternal furca (sf) with straight, slightly divergent tines ( Fig. 18B ); leg 1 last exopodal segment without pinnate posterior setae (arrowed), terminal seta 4 (4) longer than segment ( Fig. 18B ); leg 2 second endopodal segment with double row of large denticles (arrowed) on outer margin ( Fig. 18C ); leg 4 3-segmented with I, IV spines (arrowed) respectively ( Fig. 18D , cf. Fig. 44B in Cressey & Cressey (1980)) (cf. Cressey & Cressey 1980; Ho & Lin 2004; Boxshall & El-Rashidy 2009).

Remarks: Caligus productus have been reported from a variety of hosts ( Boxshall & El-Rashidy 2009). This report adds C. puniceus and C. hippurus as new host records off South Africa.

Figures

FIGURE 18. Caligus productus Dana adult female:A. adult female and male, dorsal view; B. thorax, ventral view (sf = sternal furca; 4 = terminal seta 4, leg 1 exopod; arrow = absence of posterior setae leg 1 exopod); C. leg 2 second endopodal segment outer margin (arrow = denticles); D. leg 4 exopod (arrows = I, IV spines respectively).