Hermit crabs (Crustacea: Decapoda: Diogenidae) from the KUMEJIMA 2009 Expedition, Japan *
Author
Rahayu, Dwi Listyo
Marine Bio-industry Implementation Unit, Research Center for Oceanography, Indonesian Institute of Sciences (LIPI), Teluk Kodek, Kec. Pemenang, Lombok Utara 83352, NTB, Indonesia. E-mail: dwilistyo @ yahoo. com
Author
Osawa, Masayuki
Research Center for Coastal Lagoon Environments, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane, 690 - 8504 Japan. E-mail: osawam @ soc. shimane-u. ac. jp
text
Zootaxa
2012
2012-07-04
3367
1
176
190
https://biotaxa.org/Zootaxa/article/view/zootaxa.3367.1.17
journal article
10.11646/zootaxa.3367.1.17
1175-5326
5252070
Paguristes macrops
Rahayu & Forest, 2009
(
Fig. 1E
)
Paguristes macrops
Rahayu & Forest, 2009: 1317
, figs. 3, 4.
Material examined.
1 male
3.5 mm
, Stn. Dredge 23,
26°16.380ʹN
,
126°51.50ʹE
,
12 November
2009
, 125 m (RUMF-ZC-1648);
2 females
, 1.0 mm,
2.5 mm
, Stn. Dredge 79,
26°14.686ʹN
,
126°49.623ʹE
,
20 November 2009
, 141–
165m
(
NTOUA01223
)
.
Remarks
.
Paguristes macrops
is characterized by having rounded red spot on each of the mesial and lateral faces of the meri of the chelipeds and second and third pereopods. This character is also seen in
P. gonagrus
(H.
Milne Edwards, 1836
)
,
Paguristes balanophylus
Alcock, 1905
,
Paguristes alcocki
McLaughlin & Rahayu, 2005
,
Paguristes lewinsohni
McLaughlin & Rahayu, 2005
,
Paguristes aulacis
Rahayu & Forest, 2009
, and
Paguristes
ocellus
Komai, 2010, but there are morphological and other colour differences among these species. The specimens in the present study agree well with the original description and the colouration of
Paguristes macrops
, but minor differences are noted: the ocular peduncles that are shorter than the shield, and the mesial face of the dactyl of each cheliped has only one longitudinal row of tubercles. The specimens collected (2.54,
3.45 mm
in shield length) are smaller than the specimens examined by
Rahayu & Forest (2009
, 3.0–
9.1 mm
in shield length), and too limited to evaluate whether these differences are only intraspecific variations or they warrant the separation of species.
Distribution
.
The
Philippines
and now recorded from Kume Island,
Japan
;
83–
165 m
.