The black coral fauna (Cnidaria: Antipatharia) of Bermuda with new records
Author
Wagner, Daniel
Author
Shuler, Andrew
text
Zootaxa
2017
2017-11-07
4344
2
367
379
journal article
31608
10.11646/zootaxa.4344.2.11
eadc6621-31b2-41a1-b248-8bb38bd75d09
1175-5326
1042988
B1B682B2-C9F1-4CF9-B57F-CA45B1F87B46
Tanacetipathes hirta
(
Gray, 1857
)
Tanacetipathes hirta
colonies are typically less than
50 cm
in height and sparsely branched, with most branching tending to be in a single plane like a fan (
Figure 6a–c
). Colonies branch to the 3rd–4th order, with branches usually arising at close to right angles from the branching point. The stem and branches have 4–6 rows of primary pinnules, which are arranged biserially and in alternating groups of 2–3 along the length of the axis. The posterior primary pinnules are usually
2–3 cm
long and considerably longer than the anterior primary pinnules. The secondary pinnules are usually confined to the abpolypar side of the basal section of primary pinnules. Few tertiary pinnules are present, which are restricted to the posterior side of the secondaries nearest the base of each primary pinnule. The skeletal spines are subcylindrical, inclined distally, and covered with faint papillae towards their distal half (
Figure 6e–f
). Polypar spines are typically 60–130 µm tall, whereas abpolypar spines are 50–100 µm in height (
Figure 6e
). The polyps range between 0.7–1.0 mm in transverse diameter, and are spaced
0.9–1.1 mm
apart (
Figure 6d
).
In situ
colonies are grayish to light brown in coloration (
Figure 6a–b
).
T. hirta
has previously been reported from
Brazil
to
Bermuda
at depths ranging between
20–347 m
(
Opresko
et al.
, 2016
;
Locke
et al.
, 2013
;
Opresko, 2009
;
Opresko & Sanchez, 2005
;
Loiola & Castro, 2005
;
Padilla & Lara, 2003
;
Echeverria, 2002
;
Opresko, 1972
;
Warner, 1981
). The Bermudan specimens examined as part of this study were collected at a depths ranging between
122–152 m
(
Table 1
).