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Candacia truncata has been recorded from the Atlantic, Indian and Pacific Oceans, and 

 from the Red Sea. 



ii. Candacia bradyi A. Scott. Plate XLVII, figs. i — 9. 



Candace pectinata Brady, 1883 (pars), p. 67, pi. XXX, fig. 9. 



Candacia bradyi A. Scott, 1902, p. 406, pi. I, figs. 9 — 12. 



Candacia bradyi Thompson & Scott, 1903, p. 250. 



Candace tuberculata Wolfenden, 1905 («), p. 1013, pi. XCVI, figs. 40 — 44. 



Fifty-seven specimens of this species were obtained from the plankton collected at the 

 following stations. Only the males have yet been discovered. 



Stat. 16. -- Stat. 98. -- Stat. 99. -- Stat. n;\ -- Stat. 124. -- Stat. 125 (night). -- Stat. 

 136. -- Stat. 138. -- Stat. 141 (HENSEN vertical net, 1 500 metres to surface. — Stat. 142. — 

 Stat. 143 (HENSEN vertical net, 1000 metres to surface). — Stat. 144. — Stat. 169. — 

 Stat. 172. - - Stat. 174. - - Stat. 184. - - Stat. 185 (HENSEN vertical net, 1536 metres to 

 surface). — Stat. 189'. — Stats. 194 — 7. — Stat. 215". -- Stat. 223. — Stat. 225.— Stat. 315. 



This species is easily distinguished from any of the other known males belonging to 

 the genus, by the toothed tubercle on the right side of the genital segment (Plate XLVII, fig. 2) 

 and by the structure of the fifth pair of feet. The third free joint of the left foot, is produced 

 at the outer distal angle into a short stout tooth-like process. The tooth is of a dark colour. 

 W'hen seen from the side it appears very broad, and the apex is divided into three blunt 

 points. The apical joint of the left foot appears elongate and narrow when seen from the 

 posterior aspect. In side view, the joint appears very thin. The apex of the joint is furnished 

 vvith three small spines (Plate XLVII, figs. 8 and 9). 



The left antennule is composed of twenty-three joints and extends to the end of the abdomen. 



The middle joint of the first pair of maxillipedes is furnished with three very short 

 spines. The first proxunal spine on the third joint is much thicker than the second proximal 

 spine (Plate XLVII, fig. 6). 



The terminal spine of the exopodite of the third pair of feet is contained one and a 

 half times in the length of the last joint (Plate XLVII, fig. 7). The terminal spine of the 

 exopodite of the second and fourth pairs of feet is similar to that of the third. The endopodite 

 of the first pair of feet is only one-jointed, and there is no setae on the second joint of the 

 basiopodite. The endopodite of the second, third and fourth pairs of feet is two-jointed. 



Length — 2 mm. 



The fifth pair of feet of this species is identical with the fifth pair figured by Brady in 

 the report on the 'Challenger' Copepoda (Plate XXX, fig. 9), and identified as that of Candace 

 pectinata (= Candace armata Boeck). The fifth pair of feet of the male of Candacia armata 

 (Boeck), is very different from the illustration in the 'Challenger' report, and from that now 

 presented. The genital segment also differs by having a large tooth-like projection on the right side. 



The species described by Wolfenden 1905(0), as Candace tuberculata is certainly the 

 same as the present form. My original figures were rather indifferently reproduced by the 

 lithographer, but the peculiar characters of the fifth pair are quite obvious. Wolfenden's two 



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