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the apex. They are not pointed as in Phyllopus bidentatus or Phyllopus impar (Plate XLVI, 
figs. 3 and 4). 
The combined length of the abdomen and furca is equal to half of the total length 
of the cephalothorax, from the frontal margin to the distal end of the last thoracic segment. 
The genital segment is slightly longer than the combined length of the second and third seg- 
ments. It is somewhat cylindrical in outline, and appears very nearly symmetrical when seen 
from above. The dorsal surface is flatly rounded when viewed from the side (Plate XLVI, 
figs. 3 and 4). The furcal joints are twice as long as broad. Each joint is slightly longer than 
the anal segment. 
The antennules are twenty-four-jointed and reach to the middle of the genital segment. 
The antennae, mandibles, maxillae and maxillipedes are similar to those of Phy/lopus 
bidentatus. 
The four pairs of swimming feet are also similar to those of that species. 
The fifth pair of feet resembles that of Phy/lopus bidentatus but the last two joints of 
the exopodite are proportionally wider (Plate XLVI, fig. 6). 
Male unknown. 
This species appears to be identical with the form described and illustrated as Phyllopus 
bidentatus by GtesprecuT. It differs from Brapy’s species, however, by the nearly symmetrical 
prolongations of the last thoracic segment, and by their narrowly rounded apex when viewed 
from the side. The figure given by Esterty (1905), and also some of those shewn by van 
BREEMEN (1908), evidently represent this PZy//opus. 
Occurrence. — Three females were obtained from the plankton collected with the 
HENSEN vertical net at the following stations. 
Stat. 203 (1500 metres to surface), two specimens. — Stat. 276 (750 metres to surface), one 
specimen. 
17. Family CanpactDAE. 
Genus Candacia Dana, 1846. 
This genus is at present the only known representative of the family, but it contains 
a considerable number of species. The species are distinguished chiefly by the form of the last 
thoracic segment, and by the structure of the fifth pair of feet of the two sexes. 
Twelve species were obtained from the plankton collected by the ‘Siboga’ during the 
investigations conducted in the Malay Archipelago. One of the species does not appear to 
have previously been described. 
1. Candacia aethiopica (Dana). 
Candace aethiopica Dana, 1849. p. 23. 
Candace melanopus Ciaus, 1863, p. 191, pl. XXXIII. 
Candace aethiopica Giesbrecht, 1893, p. 424, pls. 4, 21, 22 & 30. 
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