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
Cyrtomaia gaillardi
Guinot & Richer de Forges, 1982
(
Figures 9E,F
)
Material examined.
M07, Stn.
52, 556m
,
♀
67.5×
60mm
(
CW
×
PRL
) (IEO-CD-MZ07/1925)
;
M08, Stn.
39, 631m
,
♂
62×
59.9mm
(IEO-CD-MZ08/1788); M09, Stn.
27, 543m
,
♂
66×
64.5mm
(IEO-CD-MZ09/1807); M09, Stn.
32, 529m
,
♂
63×
57.3mm
(IEO-CD-MZ09/1808), 16S (
MZ
424952
)
.
Habitat and distribution.
This species is distributed in
Madagascar
, Nicobar Island and
Indonesia
(
Guinot & Richer de Forges 1982a
).
Results and remarks.
The specimens were identified following the key of
Guinot & Richer de Forges (1982a
,b, 1984, 1986). Four specimens of
Cyrtomaia gaillardi
were studied, that had been collected during the three surveys (M07, M08 and M09), at depths between 529 and
631m
.
Although this species was recorded off
Madagascar
(
Guinot & Richer de Forges 1982a
), it is not registered in any checklist of the area (
WIO
) (
Barnard, 1950
;
Emmerson 2016b
,c;
Kensley 1981
;
Poupin 2010
,
2018
), being
C. murrayi
Miers
the only species of this genus cited in the area. Therefore, these specimens are the first record of
C. gaillardi
in
Mozambique
waters. Subsequently, in
April 2009
,
one specimen
was collected during the MB-exp (
GBIF
.org 2021, unpublished record).
Colouration observed.
Specimens were light orange, with whitish finger tips, dactylus and proximal region of the merus.
DNA barcodes.
There are not 16S sequences available for this genus in Genbank, except for a short sequence of 164 bp of
Cyrtomaia owstoni
deposited by
Komai
et al
. (2019)
that fits 100% with the 16S sequence (552 bp) of
C. gaillardi
. Considering the short length of the sequence and the low number of mutations expected at congeneric level nothing could be concluded. According to
Guinot & Richer de Forges (1982a)
,
C. owstoni
has long branchial spines, these being the longest of the dorsal side of carapace, while protogastric spines are the longest in
C. gaillardi
. These clear morpholofical features make it difficult to confuse both species. Unfortunately, not COI sequence was obtained, although in any case there is not any COI sequence available in Genbank or BOLD for comparison.