Candacia — Grice and Jones 
285 
ternal furcal setae. It can be distinguished from 
C. cheirura by the asymmetry of the abdomen 
in dorsal view and by the presence of dorsal 
tubercles on the anal segment. The female re- 
sembles C. armata Boeck (as described by G. 
O. Sars, 1903) in having an asymmetrical sec- 
ond abdominal segment. It can be distinguished 
from this species by the extremely large genital 
protuberance, the ventral lobe of the second ab- 
dominal segment extending to the left rather 
than to the right, the dorsal tubercles on the 
anal segment, and details of the fifth feet. 
The geniculate antenna of the male C. pop 
resembles that of C. armata Boeck ( as described 
by Sars, 1903), C. bradyi and C. discaudata A. 
Scott, C. bipinnata Giesbrecht, and C. cheirura 
Cleve in having segments 17, 18, 19, and 20 
separate and in having coarse, unequal pig- 
mented teeth on segment 18. C. pop can be 
distinguished from C. bradyi and C. discaudata 
by the produced right thoracic process. It can 
be distinguished from C. armata , C. bipinnata, 
and C. cheirura by the low, rounded genital 
process in lieu of the sharp spinous process in 
those species. The name of this species is de- 
rived from Pacific Oceanic Fishery Investiga- 
tions. 
Candacia guggenheimi new species 
Figs. 22-41 
LOCALITIES AND MATERIALS: 26° 25.2' N., 
155° 03.0' W. (U. S. Fish and Wildlife Serv- 
ice "Hugh M. Smith” cruise 25, sta. 33, Feb. 
10, 1954, 200-0 m. depth of tow, 2 females, 4 
males); 32° 33' N., 148° 51.5' W. ("Hugh M. 
Smith” cruise 25, sta. 53, Feb. 22, 1954, 200-0 
m. depth of tow, 1 male); 23° 56' N., 157° 31' 
W. ("Hugh M. Smith” cruise 30, sta. 112-1, 
Aug. 27, 1955, 140-0 m. depth of tow, 1 fe- 
male); 21° 55' N., 158° 08' W. ("Hugh M. 
Smith” cruise 32, sta. 26, Feb. 5, 1956, 200-140 
m. depth of tow, 1 female, 1 male); 0° 00', 149° 
38' W. ("Hugh M. Smith” cruise 47, sta. 29, 
Oct. 27, 1958, 500 m. depth of tow, 1 female). 
This species has also been observed in samples 
collected at the following stations on "Hugh M. 
Smith” cruise 25 (all 200-0 m. collections): 
21° 36.5' N., 159° 00' W. (sta. 2, Jan. 16, 
1954); 33° 55.7' N., 164° 58.5' W. (sta. 11, 
Jan. 22, 1954); 26° 31' N, 160° 00' W. (sta. 
26, Jan. 30, 1954); 22° 03.7' N., 158° 40' W. 
(sta. 29, Feb. 1, 1954); 29° 32' N., 155° 04.8' 
W. (sta. 35, Feb. 12, 1954); 32° 30' N., 154° 
59' W. (sta. 37, Feb. 13, 1954). Physical, ocean- 
ographic, and other data for cruise 25 have 
been summarized by McGary and Stroup 
(1956) and that for cruise 30 by McGary, 
Jones, and Austin (1956). 
Type material of C. guggenheimi has been 
deposited in the U. S. National Museum. A 
female from cruise 25, sta. 33, was selected as 
the holotype (USNM 102733). A male from 
this station was designated the allotype (USNM 
102734). Paratypes are as follows: 1 female, 
3 males, cruise 25, sta. 33 (USNM 102735); 
1 male, cruise 25, sta. 53 (USNM 102736); 1 
female, cruise 30, sta. 112-1 (USNM 102737); 
1 female, 1 male, cruise 32, sta. 26 (USNM 
102738); 1 female, cruise 47, sta. 29 (USNM 
102739). 
MEASUREMENTS: All measurements were 
made in the method described for the preceding 
species. The total length of five adult females 
ranges from 1.94 to 2.06 mm. The lengths and 
cephalothorax-abdomen ratios, based on three 
of these individuals are: holotype 2.01 mm., 
2.9:1; paratypes 1.96 mm., 2.8:1; 2.04 mm., 
3.1:1. 
The total length of six adult males varies 
from 1.90 to 2.00 mm. These lengths and the 
Figs. 22-41. Candacia guggenheimi n. sp. 22, female, dorsal view; 23, female, lateral view; 24, fourth 
and fifth thoracic segments and abdomen, dorsal view, female; 25, genital segment, ventral view, female; 26, 
proximal seven segments of first antenna, female; 27, mandibular blade, female; 28, first maxilla, female; 
29, second maxilla, female; 30, maxilliped, female; 31, third exopodal segment of first foot, female; 32, third 
exopodal segment of second foot, female; 33, third exopodal segment of third foot, female; 34, third exopodal 
segment of fourth foot, female; 35, fifth foot, female; 36, male, dorsal view; 37, male, lateral view; 38, fourth 
and fifth thoracic segments and abdomen, dorsal view, male; 39, fourth and fifth thoracic segments and 
genital segment, lateral view, male; 40, segments 17 through 19, right first antenna, male; 41, fifth feet, male. 
Figures 22, 23, 27, and 34 drawn from paratype; Figures 24-26, 28—33, and 35 drawn from holotype. Figures 
36-39 and 41 drawn from allotype; Figure 40 drawn from paratype. 
