Annotated and updated checklist of marine crabs (Decapoda: Brachyura) of Mozambique supported by morphological and molecular data from shelf and slope species of the “ MOZAMBIQUE ” surveys
Author
Muñoz, Isabel
0000-0003-1055-0754
eli.munoz@ieo.es
Author
García-Isarch, Eva
0000-0003-3027-382X
eva.garcia@ieo.es
Author
Cuesta, Jose A.
0000-0001-9482-2336
jose.cuesta@icman.csic.es
text
Zootaxa
2021
2021-10-19
5056
1
1
67
journal article
3930
10.11646/zootaxa.5056.1.1
6e7f4e75-9f6c-43d8-bd88-4ceb637afe60
1175-5326
5577887
D20A249C-1CA4-45F8-8677-D2011A8380A4
Monodaeus tuberculidens
(Rathbun, 1911)
(
Figure 14G
)
Material examined.
M07, Stn.
27, 425m
,
♂
12.2×
8.9mm
(IEO-CD-MZ07/1803); M09, Stn.
84, 254m
,
♂
13.6×
9.3mm
(IEO-CD-MZ09/1763), 16S (
MZ
424976
), COI (
MZ
434824
)
.
Habitat and distribution.
Its distribution includes
Reunion Island
, the great bank Saya de Malha,
South Africa
and
Angola
, at
210 m
(
Guinot & Macpherson 1988
),
Mayotte Island
(
Poupin 2010
,
2018
),
Mozambique
(
Emmerson 2016c
) and
Australia
(
GBIF
.org 2021, unpublished record).
Results and remarks.
The descriptions of
Guinot & Macpherson (1988)
and
Serène (1984)
were followed to identify the
two male
specimens. In one of the specimens (IEO-CD-MZ09/1763) the spines on merus and carpus of P2–P5 are not sharp. Both of them were collected in March (
MZ
07 and MZ09), at depths between 254 and
425m
, and thus, these records extend the maximum depth of the species to
425m
.
Colouration observed.
The carapace was orange with white edges and some small red and white tubercles. Chelae were orange with red tubercule tips, white palm and brown fingers. Meri of chelipeds had orange and white bands and carpi and dactyli were orange with red tubercules.
DNA barcodes
. The 16S sequence fits 100% with that of
Monodaeus tuberculidens
(
HM
798515
) obtained by
Lai
et al
. (2011)
. However, it differs in only 1 mutation to two sequences of
Monodaeus couchii
(
AM
076771
and
HM798510
) by
Reuschel & Schubart (2006)
and
Lai
et al.
(2011)
. The COI sequence is also close to one of
M. tuberculidens
(
HM
751031
), from the same specimen, also obtained by
Lai
et al
. (2011)
, fitting 99.66% (two mutations). Similarly to 16S, in this case there are other 20 sequences of
M. couchii
presenting close haplotypes that vary in a range of five to eight mutations (98.66 to 99.21%). Therefore,
M. tuberculidens
and
M. couchii
are closer species that need to be further studied to clarify their relationship.