type: C. ornata in Fowler (1912), replaced by the species type Candacia pachydactyla (Dana,1849) in Grice & Vervoort, 1963 (p.150). 32 spp. + 3 unidentified (+ 2 doubtful : guinensis, inermis).

Key to species of Paracandacia and Candacia after Bradford-Grieve & al. (1999, p.955-957) from South Atlantic :
Female :
0 – P5 terminal segments end in processes at least one of which is finger-like process and may be finely serrated on one or both margins …….. Paracandacia (= Candacia).
0’ – P5 terminal segments end in one or more spine-like processes ………. Candacia.
01 - In dorsal view, genital segment with spine-like protrusions arising from each side and directed posteriorly (Fig.7.375, p.1066)……… Paracandacia bispinosa (= Candacia bispinosa)
01’ – In dorsal view genital segment without spine-like protrusions ……… 02.
02 - P5 terminal finger-like process finely serrate proximally ; distal seta on inner margin approximately twice as long as proximal seta ; points of posterior corners of prosome directed backwards (Fig.7.376, p.1066) …….. Paracandacia simplex (= Candacia simplex).
02’ - P5 terminal finger-like process finelly serrate distally ; setae on inner margin subequal, distal seta slightly longer than proximal seta ; points at posterior corners of prosome directed ventrally, scarcely visible in dorsal view (Fig.7.377, p.1066) ……… Paracandacia truncata (= Candacia truncata)
0’ : Candacia
1 – Posterior corners of prosome broadly rounded (Fig.7.366, p.1065)……. Candacia elongata.
1’ – Posterior corners of prosome pointed or otherwise produced ……… 2.
Urosomal segment 2 with ventral protrusion, lamella, or spuine-like process arising from ventral surface …… 3.
2’ – Urosomal segment 2 without lateral or ventral protrusion and without spine-like process arising from ventral surface ……. 6.
3 – In dorsal view, lateral margins of genital segment somewhat triangula rand pointed ; lamella on ventral surface of Urosomal segment 2 (Fig.7.362, p.1064)…….. Candacia bipinnata.
3’ – In dorsal view, lateral margins of genital segment not pointed ……… 4.
4 – In dorsal view, protrusion on ventral surface of urosomal segment 2 visible on right side of somite ; in dorsal view, lateral margins of genital segment with knob-like protrusions ; apex of P5 ends in long saber-like point (Fig.7.361, p.1064) ……… Candacia armata4’ – In dorsal view, protrusion on ventral surface of urosomal segment 2 not visible ; apex of P5 ends in 2 or more points …….. 5.
5 – In lateral view, ventral protrusion of urosomal segment 2 directed obliquely anteriad ; terminal segment of P5 with 2 small, outer, spine-like points and 2 small, subequal, spine-like points at tip (Fig.7.372, p.1065) …….. Candacia paenelongimana.
5’ – In lateral view, ventral protrusion of urosomal segment 2 directed obliquely posteriad ; terminal segment of P5 with 2 small, outer, spine-like points and 3 spine-like points distally, middle one of which is longest (Fig.7.364, p.1064) ……… Candacia cheirura.
6 – No inner edge setae present on terminal segment of P5 ……… 7.
6’ – 2 or 3 inner edge setae present on terminal segment of P5 …… 11.
7 – Spine-like process present on ventral side of genital segment (Fig.7.365, p.1064) …….. Candacia curta.
7’ – No spine-like process present on ventral side of genital segment ……. 8.
8 – 3 spine-like points present on terminal segment of P5 (Fig.7.373, p.1066) …….. Candacia tenuimana.
8’ – 4 or 5 spines or spine-like points present on terminal segment of P5 ……. .
9 – Apex of terminal segment of P5 with 3 subequal spine-like points (Fig.7.368, p.1065) ……… Candacia longimana.
9’ – Apex of terminal segment of P5 with 1 spine-like points or 2 unequal spine-like points ……. 10.
10 – Terminal segment of P5 with 2 outer spines and 2 distal spines (Fig.7.374, p.1066) …….. Candacia varicans.
10’ – Terminal segment of P5 with 3 small outer spines, and 2 distal spines (outer spine very small, inner spine large) (Fig.7.369, p.1065) …….. Candacia magna.
11 – No spines or spine-like processes present on genital segment ; in dorsal view, genital segment with distinctly convex protrusion on each side ; in lateral view, genital segment with ventral, rounded protrusion directed posteriad (Fig.7.363, p.1064) …… Candacia catula.
11’ – Spines or spine-like processes present on dorsal, lateral or ventral margins of genital segment …… 12.
12 – In dorsal view, 1 robust spine-like process extending obliquely posteriad from left side, and 1 robust spine extending posteriad from right side of genital segment ; both surpass posterior margin of genital segment (Fig.7.371, p.1065) …….. Candacia pachydactyla.
12’ – In dorsal view, spines from left and right sides of genital segment smaller and not reaching posterior margin of genital segment ……… 13.
13 – In lateral view, small protuberance arising from ventral side of genital segment near posterior margin ; distal 2 inner setae on terminal segment of P5, coaese and ubequal in length (Fig.7.367, p.1065) …….. Candacia ethiopica.
13’ – In lateral view, no protuberance on ventral sutface og genital segment ; distal 2 inner setae on terminal segment of P5, thin and approximatelt equal in length (Fig.7370, p.1065) …….. Candacia norvegica.

Male : :
0 - P5 is not chelate on right but ends in long plumose seta ; right A1 has no teeth in geniculate region …….. Paracandacia .
0’ – P5 is chelate on right ; right A1 has teeth on one or more segments in geniculate region ………. Candacia.
- 01 – Right A1 segments 16 and 19-20 without rounded or elongate protrusions (Fig. 7.376, p.1066) …….. Paracandacia simplex (= Candacia simplex).
01’ - One or both of right A1 segments 16 and 19-20 with rounded or elongate protrusions ………. 02.
02 – A1 segment 16 with rounded protrusion distally, segment 19-20 produced distally (Fig. 7.375, p.1066) ………. Paracandacia bispinosa (= Candacia bispinosa-.
02’ - A1 segment 16 with elongate protrusion distally, segment 19-20 not produced (Fig. 7.377, p.1066) ………. Paracandacia truncata (= Candacia truncata).
0’1 – Left posterior corner of prosome rounded (Fig. 7.366, p.1065) ……… Candacia elongata.
0’1’ – Left posterior corner of the prosome pointed ……… 0’2
0’2 – In dorsal view, genital segment without process or protrusion ……… 0’3.
0’2’ – In dorsal view, genital segment with process or protrusion ……. 0’4.
0’3 – Proximal spine on Mx2 inner lobe 5 considerably thicker than distal spine (Fig. 7.363, p.1064) ……… Candacia catula.
0’3’ – Proximal spine on Mx2 inner lobe 5 not notably thicker than distal spine (Fig. 7.374, p.1066) ……… Candacia varicans.
0’4 – Right A1 with segments 2 and 3 fused …….. 0’5.
0’4’ – Right A1 with segments 2 and 3 separate ……… 11.
0’5 – Right A1 with segments 17 and 18 fused …… 6.
0’5’ – Right A1 with segments 17 and 18 separate …….. 7.
0’6 – In dorsal view, process on right side of genital segment small, consisting of rounded knob in front of which is pointed projection (Fig. 7.367, p.1065) …….. Candacia ethiopica.
0’6’ – In dorsal view, process on right side of genital segment large, consisting of single broad and rounded projection (Fig. 7.371, p.1065) …….. Candacia pachydactyla.
0’7 – Right A1 with segments 19 and 20 fused or partially fused …….. 0’8.
0’7’ – Right A1 with segments 19 and 20 separate …… 0’10.
0’8 – In lateral view, distal end of right posterior corner of prosome truncate, extending beyond posterior border of genital segment (Fig. 7.362, p.1064) ………. Candacia bipinnata.
0’8’ – In lateral view, distal end of right posterior corner of prosome not truncate, may or may not extend beyond posterior border of genital segment …… 0’9.
0’9 – In lateral view, right posterior prosome corner not reaching posterior border genital segment and turned upwards (Fig. 7.365, p.1064) ……… Candacia curta.
0’9’ – In lateral view, right posterior prosome corner reaching posterior border of genital segment and turned slightly downwards ‘Fig. 7.361, p.1064) …….. Candacia armata.
0’10 - Tip of ‘thumb’ of chela on right P5 reaching to about midlength of ‘finger’ (Fig. 7.361, p.1064) ……. Candacia armata.
0’10’ – Tips of ‘thumb’ and ‘finger’ of right P5 subequal (Fig. 7.369, p.1065) …….. Candacia magna.
0’11 – In dorsal view, distal end of process on right side of genital segment ending in point ……. 0’12.
0’11’ – In dorsal view, distal end of process on right side of genital segment rounded or lobate …… 0’14.
0’12 – Distal segment of left P5 longer than penultimate segment (Fig.7.364, p.1064) …….. Candacia cheirura.
0’12’ – Distal segment of left P5 shorter than penultimate segment ……. 0’13.
0’13 – In dorsal view, process on genital segment directed outwards with distal end curved posteriorly ; right posterior corner of prosome notched at tip (Fig.7.373, p.1066) ……… Candacia tenuimana.
0’13’ – In dorsal view, process on genital segment not curved and directed somewhat obliquely posteriad ; right posterior prosome corner not notched at tip (Fig. 7.372, p.1065) ……. Candacia paenelongimana.
0’14 – In dorsal view, process on genital segment divided into 2 lobes (Fig. 7.370, p.1065) …….. Candacia norvegica.
0’14’ – In dorsal view, process on genital segment knob-like ‘Fig. 7.368, p.1065) ……. Candacia longimana

After Ohtsuka & Nishida (2017, p.581), Candacia is specialized for predation on gelatinous zooplankters such as appendicularians (Ohtsuka & Onbé, 1989; Ohtsuka & Kubo, 1991)..