Caligus afurcatus Wilson C. B. 1913

Caligus afurcatus Wilson, 1913

Caligus afurcatus Wilson, 1913:215.

MATERIAL EXAMINED.—Wilson (1913) described this species from the typehost Sparisoma viride (Bonnaterre) from Montego Bay, Jamaica. The description below is based on the type material (USNM 43518).

FEMALE.—Total length 2.77 mm, greatest width 1.44 mm (Figure 1). Cephalothorax widest posteriorly and comprising more than half total length. Genital complex longer than wide and comprising about one-third of total length. Abdomen very small, indistinctly articulated with genital complex (length of genital complex about 5 times longer than abdomen). Caudal rami (Figure 2) small, about as long as wide and placed at outer lateral corners of abdomen and somewhat divergent, terminal setae broken on specimen.

Lunules widely spaced. Second antenna (Figure 3a) claw curved but not at right angle, posterior spine pointed. Postantennal process (Figure 3b) reduced to a sclerotized knob. Spiniform process of first maxilla (Figure 3c) pointed. Sternal furca (Figure 4) very small, tines somewhat divergent and longer than box.

Leg 1 (Figure 5) exopod with 4 terminal setae, medial 2 with accessory process; medial lateral setae relatively short, each bearing pinnules, endopod reduced. Leg 2 (Figure 6) first segment of exopod with prominent, inwardly directed spine at outer distal corner, extending well beyond second segment; second segment short, bearing much smaller spine at outer distal corner (spine less than half length of first segment spine); last segment bearing 2 small outer spines, outer terminal spine bearing terminal flagellum and medial pinnae; all remaining medial exopod setae pinnate; endopod outer margins of all 3 segments with short setules as indicated in figure, all terminal to medial setae pinnate. Leg 3 exopod (Figure 7) spine on outer corner of first segment extending to base of last segment, remaining segments armed as in figure; endopod 2-segmented, first segment with 1 medial seta, second segment with 2 medial setae, last segment with 6 setae. Leg 4 (Figure 8) exopod 2-segmented, first segment with terminal spine extending to about mid-margin of second segment, second segment with spine on outer margin and 3 terminal spines; terminalmost spine about twice as long as other 4 lateral spines; fringed processes at bases of 2 terminal spines.

MALE.—Unknown.