The Indonesian species of Macrophthalmus Desmarest, 1823, with the description of a new species (Crustacea: Decapoda: Brachyura: Macrophthalmidae)
Author
Rahayu, Dwi Listyo
Author
Nugroho, Dharma Arif
text
Zootaxa
2012
3158
20
36
journal article
45671
10.5281/zenodo.211286
007f5089-4a23-4153-8699-671b54886883
1175-5326
211286
Macrophthalmus
(
Paramareotis
)
erato
De
Man
, 1888
(
Figs. 8A, B
)
Macrophthalmus erato
De
Man
, 1888
: 125
, pl. 8, figs. 12–14. —
Tesch 1915
: 179
, pl. 8, fig. 9.
Macrophthalmus
(
Mareotis
)
erato
—
Barnes 1970
: 232
, fig. 9.
Macrophthalmus
(
Paramareotis
)
erato
—
Komai
et al
. 1995
: 140
. — Barnes 2010: 42.
Material examined.
11 males
(3.90 x
5.10 mm
–
6.80 mm
x
9.60 mm
),
3 females
(5.00 x 8.00 mm – 8.20 x
11.40 mm
) (
ZRC
2011.1006), Ajkwa I.,
Papua
, 0 8. 0 6.2004,
26.03.2007
and
27.05. 2007
;
2 males
(7.82 x
5.64 mm
),
1 female
(7.27 x
5.09 mm
), Kamora River,
Papua
, 0 6. 05.2003;
5 males
(4.10 x
5.60 mm
– 6.50 x
9.2 mm
),
6 females
(4.50 x
6.30 mm
– 8.60 x
12.20 mm
), 1 ovig. (6.00 x
8.20 mm
) (
MZB
Cru 3278), Kamora I.,
Papua
,
24.06.2008
;
4 males
(5.30 x
7.60 mm
– 7.00 x 11.00 mm),
3 females
(4.40 x
6.40 mm
– 7.90 x
11.10 mm
) (RCLA-C.B.0272- 0273), Ajkwa I.,
Papua
,
19 March
and
21.06.2008
;
2 males
(6.60 x
9.10 mm
– 7.97 x
11.27 mm
),
1 female
(6.70 x
9.80 mm
) (RCLA-C.B. 0274), Otakwa,
Papua
,
08.07.2008
;
1 male
(7.45 x
9.27 mm
),
1 female
(6.91 x
8.91 mm
) (RCLA-C.B.0275), Ajkwa,
Papua
,
21.06.2008
.
Remarks.
The specimens examined agree well with the description given by
Barnes (1970)
, except for the granulation and setation on the dorsal surface of the carapace. According to
Barnes (1970)
the carapace surface is covered with small, rounded granules except for the central gastric and cardiac regions, which are smooth, and the posterolateral margin being covered by thick setae. The granulation in the material examined is only on the small portion of the hepatic and branchial regions, and the posterolateral margin of the carapace is only very sparsely setose. Species-specific characters such as the large triangular protuberance and the row of 3–5 rounded tubercles on the lower orbital border, the large spine on the inner surface of the palm of the cheliped near articulation with the carpus are present in the Indonesian specimens.
Habitat.
Muddy sand flats of lower intertidal zone in mangrove forests.
Geographical distribution.
Mergui Archipelago, Peninsular
Malaysia
, southern
China
(
Barnes 1970
),
Indonesia
(Madura;
Tesch 1915
), and now
Papua