Two new species and new records in the alpheid shrimp genera Salmoneus Holthuis 1955 and Deioneus Dworschak, Anker & Abed-Navandi, 2000 in theAtlantic Ocean (Malacostraca: Decapoda)
Author
Anker, Arthur
text
Zootaxa
2020
2020-06-03
4786
3
345
368
journal article
10.11646/zootaxa.4786.3.2
1175-5326
3876847
4A85C28E-DAD1-45F7-908A-93D0CE93867A
Salmoneus camaroncito
Anker, 2010
Fig. 5
Salmoneus camaroncito
Anker 2010a: 184
, figs. 5, 6, 14b.
Material examined.
1 post-ovigerous specimen (cl
3.3 mm
),
OUMNH
.
ZC
. 2011-06-0048,
Mexico
,
Caribbean
coast,
Quintana Roo
,
Isla Cozumel
,
1 km
south of
Playa Corona
, sand flat with sea grass and abundant rubble, under rocks and coral rubble, depth: less than
1 m
, leg.
A. Anker
,
10.07.2010
[fcn
COZ4-003
]; 1 post-ovigerous specimen (cl
2.8 mm
),
FLMNH
UF 51923
,
Panama
,
Caribbean
coast,
Isla Grande
, north side of island,
9°38’14.4”N
79°33’38.2”W
, shallow bay, under rocks on silty sand near shore, depth: less than
0.5 m
, leg.
A. Anker
,
31.07.2018
[fcn 18-055]
.
Remarks
.
Salmoneus camaroncito
was hitherto known only from the material listed in
Anker’s (2010a)
original description of the species, viz.
Panama
(Isla Grande and San Blas Islands) and
Honduras
(Utila), and is herewith recorded for the first time from
Mexico
(Cozumel), slightly expanding its previously known range northwards. The Mexican specimen generally corresponds well to the specimens of
S. camaroncito
in
Anker (2010a)
, except for the noticeably more developed minor cheliped, which in the length and robustness is only slightly inferior to the major cheliped (
Fig. 5
). Consequently, the minor chela of the Mexican specimen is comparatively larger and stouter than that of the
holotype
(cf.
Anker 2010a
: fig. 6d, e) or the Isla Grande specimen, and has a stronger dentition (i.e. larger teeth) on the finger cutting edges. This size and armature difference is explainable by the fact that the specimen from Cozumel at cl
3.3 mm
is somewhat larger in size than the original specimens from
Panama
and
Honduras
, at cl
2.4–2.5 mm
, or the Isla Grande specimen, at cl
2.8 mm
.