t55 



The fifth pairs of feet of the twu sexes are very sitnilar to those of Candacia bispinosa, 

 but the females can easily be separated by the quite symmetrical genital segment. The segment 

 lias no spiniform projection on the sides. 



Candacia simplex has been recorded from the Pacific and Indian Oceans, and from the 

 Mediterranean. 



9. Candacia ienuimana (Giesbrecht). 



Candace ienuimana Giesbrecht, 1889, p. 8 14. 

 Candace tenuimana Giesbrecht, 1893, p. 424, pis. 21 & 22. 

 Candacia tenuimana Giesbrecht & Schmeil, 1898, p. 128. 

 Candacia tenuimana Cleve, 1904, p. 187. 



Two females belonging to this species were found in the plankton collected vvith the 

 Hensen vertical net at Station 141, 1500 metres to the surface. 



Candacia tenuimana is closely related to Candacia longimana, but the female can readily 

 be separated by the long spiniform termination of the apical joint of the fifth pair of feet. 



This species is known from the Pacific Ocean and from the Mediterranean. 



10. Candacia truncata (Dana). 



Candace truncata Dana, 1849, p. 24. 



Candace truncata Brady, 1883 (pars), p. 69, pi. XXIX, tig. 9. 



Candace truncata Giesbrecht, 1893, p. 425, pis. 21, 22 & 39. 



Candacia truncata Giesbrecht & Schmeil, 1898, p. 130. 



Candacia truncata I. C. Thompson, 1900, p. 282. 



Candacia truncata A. Scott, 1902, p. 406. 



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



Candacia truncata Cleve, 1903, p. ,358. 



Candacia truncata Cleve, 1904, p. 187. 



Candace truncata Wolfenden, \()0^{a), p. 1013. 



This species appeared to be well distributed throughout the area investigated bv the 

 'Siboga' as shewn by the following records. Eighty-eight specimens were obtained. 



Stat. 35. — Stat. 37. — Stat. 66. — Stat. 96 (night). -- Stat. 98. — Stat. 99. — Stat. 101. — 

 Stat. 106. — Stat. 109. — Stat. 1 10. — Stat. 112. — Stat. wj'\ — Stat. 11S (HENSEN 

 vertical net, 900 metres to surface). — Stat. 121. — Stat. 125 (night). — Stat. 128 

 (HENSEN vertical net, 700 metres to surface). • • Stat. 133. ■ Stat. 136. — Stat. 141 

 (HENSEN vertical net, 1500 metres to surface). — Stat. 142. -- Stat. 143 (HENSEN vertical 

 net, [OOO metres to surface). — Stat. 144. — Stat. 157. - Stat. 169. — Stat. 172. - 

 Stat. ijj\ — Stat. [84. — Stat. 186. — Stat. 189'. -- Stat. 203 (surface). — Stat. 203 

 (HENSEN vertical net, 1500 metres to surface).. — Stat. 204. Stat. 217 (horizontal 



cylinder). — Stat. 220 (HENSEN vertical net, 200 metres to surface). — Stat. 229. — 

 Stat. 252. — Stat. 276 (Hensen vertical net, 750 metres to surface). — Stat. 282. 

 Stat. 304. — Stat. 315. 



The females can readily be separated from any of the other members of the genus, 

 by the truncate distal ends of the last thoracic segment, and by the small tooth at the posterior 

 extremity of the ventral margin of this segment. 



iS5 



