First record of Candacia bispinosa (Crustacea: Calanoida: Candaciidae) from Korea
Author
Lim, Byung-Jin
Author
Min, Gi-Sik
text
Journal of Species Research
2016
2016-10-31
5
3
372
374
http://dx.doi.org/10.12651/jsr.2016.5.3.372
journal article
300415
10.12651/JSR.2016.5.3.372
038974a7-ba07-4b01-9958-e1db238bb6bc
2713-8615
13142726
Candacia bispinosa
(
Claus, 1863
)
ṣṻṄĝǧƚḇNj
(
Fig. 1
)
Candace bispinosa
Claus, 1863
(p. 191, figs. F, M).
Paracandacia bispinosa
:
Grice, 1963
(p. 173, figs. F, M); Chihara and Murano, 1997 (p. 755, Pl. 79, 80: F, M).
Candacia bispinosa
:
Boxshall and Halsey, 2004
(p. 84).
Material examined.
1 adult
male (NIBRIV0000557580),
East
China
Sea
(
31°30′N
,
127°04′E
),
Feb. 2012
, coll.
S.H. Yoon.
Diagnosis of male.
Body (
Fig. 1A
) robust (1.88 mm). Rostrum poorly developed, lacking filaments. Cephalosome anteriorly flat and narrow. Cephalosome separated from first pedigerous somite; fourth and fifth pedigerous somites fused; posterior corners of last pedigerous somite with processes. Urosome 5segmented. Caudal rami symmetrical and with 6 setae. Segments 16 and 18 of right antennule with knoblike protrusion. Leg 5 (
Fig. 1C
) asymmetrical. Right leg 3-segmented; first segment elongate and unarmed; second segment with 1 outer spine on middle margin; third segment with 3 small outer spines and 1 long plumose seta. Left leg 4segmented; first segment unarmed; second segment with subdistal seta; third exopodal segment, swollen, with subdistal seta; fourth segment with hairs along inner margin and 3 terminal setae.
October 2016
LIM AND MINFIRST RECORD OF
CANDACIA BISPINOSA
FROM
KOREA
373
B A A, B C
C
Fig. 1.
Candacia bispinosa
(Claus)
, male: A, habitus, dorsal view; B, habitus, lateral view; C, leg 5, posterior view. Scale bars
=
0.5 mm (A, B), 0.1 mm (C).
Female.
Not found.
Distribution.
East
China
Sea, Atlantic and Indo-Pacific Oceans.
Remarks.
Candacia bispinosa
resembles
C. worthingtoni
(
Grice, 1981
)
in the absence of chelate form of the male right leg 5 and fourth segment of left leg 5 with 3 terminal setae.
This species differs from
C. worthingtoni
in the following characters: genital segment of female with spines (versus no spine in
C. worthingtoni
); and segment 18 of right antennule swollen in the male (versus not swollen segment).