Deep-water octocorals (Cnidaria: Octocorallia) from Brazil: Family Chrysogorgiidae Verrill, 1883
Author
Cordeiro, Ralf T. S.
Author
Castro, Clovis B.
Author
Pérez, Carlos D.
text
Zootaxa
2015
4058
1
81
100
journal article
39269
10.11646/zootaxa.4058.1.4
0a5c2246-b30c-462f-aed3-f96d8c472953
1175-5326
241598
BA3DD6C8-38B0-4EE0-80B4-C316E814C3D1
Chrysogorgia elegans
(
Verrill, 1883
)
(
Fig. 2
G)
Dasygorgia elegans
Verrill, 1883
: 23
.
Dasygorgia spiculosa
Verrill, 1883
: 23
–24 (in part: BL-44, 1 of
2 specimens
; BL-195, 1 of
2 specimens
; BL-205,
1 specimen
)
Dasygorgia spiculosa
:
Wright & Studer, 1889
: 9
–10, Pl. 4,
Fig. 1
, Pl. 5,
Fig. 1
.
Chrysogorgia affinis
Versluys, 1902: 47
–48, figs. 64–65.—
Kükenthal, 1919
: 521
; 1924: 396.—
Deichman, 1936
: 221
–222.— Bayer, 1959: 29.
Chrysogorgia elegans
: Versluys, 1902: 61
.—not
Nutting, 1908
: 590
.—
Kükenthal, 1919
: 533
, Fig. 234; 1924: 405.—
Deichman, 1936
: 231
–232, in part: Pl. 23, Figs. 53–59: BL-44 (in part), BL-195 (in part), BL-205, BL283; not Pl. 33,
Fig. 1
(=
C. spiculosa
).—
Bayer, 1952
: 189
; 1954: 280 (listed); 1956: F216, Fig. 155, 3a-c, 158,6; 1958: 389, 390 (listed).—
Grygier, 1984
: 143
(Oregon-548).—
Grygier, 1990
: 667
.—
Cairns, 2001
: 760
-764 (synonymy),
Figs. 3
,
4
.—
Silva & Pérez, 2002
: 18
,
Tab. 1
.—
Lumsden et al. 2007
: 188
, 305, 352.—
Cairns & Bayer, 2009
: 329
.—
Chacón-Gómez et al., 2010
: 438
- 441,
Figs. 6
and
7
.—
Chacón-Gómez et al., 2012
: 204
,
Tab. 2
.
Chrysogorgia agassizii
:
Deichmann, 1936
: in part (pl. 34, figs. 1–2).
Chrysogorgia
sp.
Grygier, 1984
: 143
(P-781);
Castro et al., 2006
: 170
(in part: MNRJ 4189 and MNRJ 4211)
Types
:
Museum of Comparative Zoology, Harvard, MCZ 4860
Type
locality:
13°05’05”N
,
59°40’50”W
(west coast of
Barbados
),
433 m
depth. Other
paralectotypes
, see
Cairns, 2001
.
New records:
MNRJ
4189,
13°24'58"S
,
38°38'16"W
,
727–801 m
(3 fragments);
MNRJ
4211,
13°24'58"S
,
38°38'16"W
,
727–801 m
(3 colonies);
MNRJ
5966, REVIZEE Bahia (Thalassa RV), unknown depth (1 colony);
MNRJ
6785,
20°00’01”S
,
38°22’03”W
(Besnard Bank,
Brazil
),
666 m
depth, one colony.
Diagnosis
(based on
Cairns, 2001
): Colony bottlebrush, wiry, up to
16 cm
in height, with branching sequence 2/5R and a rhizoidal holdfast. Distance between branches is 1.0–
1.5 mm
and orthostiche interval between 7.0 and
7.5 mm
. First internode from
6 to 8 mm
long, with usually one polyp. Presence of 1–3 internodes per branch, usually 2. Body wall of polyps and tentacular sclerites with rotund rods longitudinally arranged,
0.44–0.65 in
length. Coenenchymal scales up to
0.65 mm
long. Pinnular and distal tentacle sclerites rectangular to mediallyconstricted scales
0.12–0.20 mm
in greater length and 0.0–
0.05 mm
in width and with faces sparsely ornamented and edges finely serrate.
Remarks:
The description given by
Cairns (2001)
dispenses additional comments on Brazilian specimens, once the author had considered the synonym
C. affinis
Versluys, 1902
, previously reported to
Brazil
, after examining the
holotype
. The specimens examined herein shows no discrepancies with the descriptions of specimens examined by
Cairns (2001)
. The previously known distribution of the species in
Brazil
was limited to the coast of Pernambuco State (
09°05’S
,
34°50´W
). In this study, the latitudinal distribution is expanded about
1250 km
to the south (
20°00’S
).
Cairns (2001)
refers to the records of
C. elegans
in the eastern Atlantic mentioned by Thomson, 1972 (as
C. flexilis
), Tixier-Durivault & d´Hondt, 1974, and Grasshoff, 1986 (off Azores,
Cape Verde
, Bay of Biscay and off
Morocco
) as doubtful because “none of the specimens on which these reports were based was illustrated or described, nor have I examined them.” Therefore, these localities are not in the “distribution” range indicated here.
Distribution:
Western Atlantic Ocean: Northern Gulf of
Mexico
, Little
Bahama
Bank, southeastern Caribbean throughout Lesser Antilles to border of
Colombia
and
Panama
, and off Pernambuco to Espirito Santo States,
Brazil
. Eastern Atlantic? (
Cairns, 2001
;
Cairns & Bayer, 2009
;
Chacón-Gómez et al., 2012
; present study);
128– 1716 m
depth.