Caligus asperimanus Pearse 1951

Caligus asperimanus Pearse, 1951 (Figs 1A–F) Host: Katsuwonus pelamis (Linnaeus) (Scombridae: Scombriformes) Locality: Off east coast South Africa (Indian Ocean) Material examined: 1♀ Material collected: 1♀ from K. pelamis Adult female (Fig. 1A) antenna with spatulate posterior spine (arrowed) on proximal segment (Fig. 1B); post-antennal process (pap) recurved or nearly at right angle (Fig. 1C); maxillule posterior process (mpp) with pointed tip (Fig. 1D); sternal furca (sf) tines widely divergent (Fig. 1B); leg 2 endopod second segment with 2–3 rows of strong denticles (arrowed) on outer margin (Fig. 1E; cf. Fig. 14 in Cressey (1991)); leg 4 proximal segment distolateral spine (dls) reaching beyond base of lateral spine (I) of compound segment and this spine reaches beyond bases of terminal spines (II, III and IV) of compound segment, distomedial spine (IV) almost twice length of other spines (Fig. 1F) (cf. Cressey 1991). Remarks: Previous records of C. asperimanus were from Lutjanus (Lutjanidae: Acanthuriformes) species (Cressey 1991). Thus, K. pelamis represents a new host record for C. asperimanus and it is also a new record off South Africa.