New Records of Species of Gebiidea and Anomura (Crustacea: Decapoda) from the Sea of Japan
Author
Osawa, Masayuki
Estuary Research Center, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane 690 - 8504, Japan E-mail: osawam @ soc. shimane-u. ac. jp & Corresponding author
osawam@soc.shimane-u.ac.jp
Author
Ota, Yuzo
San’in Kaigan Geopark Museum of the Earth and Sea, 1794 - 4 Makidani, Iwami, Tottori 681 - 0001, Japan
text
Species Diversity
2020
2020-10-28
25
295
307
journal article
10.12782/specdiv.25.295
2189-7301
5738823
Paguristes versus
Komai, 2001
(
Figs 2F
,
3B
)
Restricted synonymy.
Paguristes kagoshimensis
non
Ortmann, 1892
(=
Paguristes digitalis
Stimpson, 1858
):
Kim 1973: 214
, 597, fig. 44, pl. 69, fig. 25;
Miyake 1978
; 35, fig. 12;
Miyake 1982: 96
, pl.
32, fig. 5.
Paguristes versus
Komai, 2001: 406
, figs 23–27 (
type
locality:
Okinoyama Bank
,
Sagami-nada
,
Japan
,
34°59′N
,
139°39′E
;
105–113 m
);
McLaughlin
et al
. 2007: 54
, 2 unnumbered figs.
Material examined
.
Tottori Prefecture
.
Off Nagaobana
(
35°55′N
,
134°00′E
),
Tottori
,
100 m
, beam trawl,
15 May 2018
, coll
. Y
. Ota,
3 males
(sl
4.9–5.8 mm
), TRPM-783.
Distribution.
Japan
,
Korea
,
Taiwan
;
80–221 m
, possibly to
254 m
(
Komai 2001
;
McLaughlin
et al
. 2007
). Japanese records include the Pacific coast from Boso Peninsula to the Ohsumi Islands, northern Ryukyu Islands (
Komai 2001
), and
Toyama
and
Tottori
Prefectures on the coast of the Sea of
Japan
(
Kikuchi 1932
, as
P. kagoshimensis
Ortmann, 1892
; present study).
Habitat.
No previous records on the collection substrate, but sampling gears mentioned in the previous literature (
e.g.
,
Komai 2001
;
McLaughlin
et al
. 2007
) suggest that specimens of
P. versus
were collected from soft bottoms. The present specimens were collected from the muddy sand substrate.
Remarks.
This species had been referred to as
Paguristes kagoshimensis
in previous literature (
cf
.
Miyake 1978
,
1982
). With the reexamination of the
type
material of
P. kagosimaensis
,
Komai (2001)
clarified that
P. kagoshimensis
was actually conspecific with
P. digitalis
Stimpson, 1858
, and assigned the taxon confounded with
P. kagoshimensis
to his new species
P. versus
. The occurrence of
P. versus
from the Sea of
Japan
has been confirmed by the present specimens, although
Kikuchi (1932)
had recorded “
P. kagoshimensis
”
from
Toyama
Bay in the area.
Four species of the genus
Paguristes
Dana, 1851
are now known from the Sea of
Japan
with the addition of the two species recorded in this paper:
P. digitalis
,
P. gonagrus
,
P.ortmanni
Miyake, 1978
, and
P. versus
(
cf
.
Motoh 2007
; present study). Two species of the allied genus
Areopaguristes
Rahayu and McLaughlin, 2010
,
A. hirsutimanus
(Kobjakova, 1971)
(junior synonym:
Stratiotes nigroapiculus
Komai, 2009
) and
A. japonicus
(Miyake, 1961)
, are also known from the Sea of
Japan
(
Motoh 2007
, as
Paguristes
;
Komai 2009
, as
Stratiotes
Thomson, 1899
;
Marin 2016
).