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
Distichopathes filix
(
Pourtales, 1867
)
Distichopathes filix
forms very sparsely-branched colonies that are branched in a single plane (
Figure 5a–b
). Pinnulation is bilateral, and the pinnules in each lateral row alternate with those of the opposite row (
Figure 5b–c
). Spines are needle-shaped and covered with distinct tubercles on the distal third of their surface (
Figure 5d–e
). On the side of the corallum opposite to the one bearing the polyps, the spines are uniform in height and typically range between 90–120 µm (
Figure 5d
). In contrast, the side of the corallum bearing the polyps contains skeletal spines of greatly varying heights (
Figure 5d
). The tallest spines are located in the area underneath the outer edges of polyps and reach heights of 200–250 µm, whereas the shortest spines are situated in the area underneath the oral cone, and typically reach heights of only 200 µm (
Figure 5d
). Polyps are 0.7–1.0 mm in transverse diameter, and spaced
1.1– 1.2 mm
apart (
Figure 5c
). The color of living colonies is bright yellow (
Figure 5a
).
D. filix
has previously been reported from the Caribbean Sea and the Gulf of
Mexico
at depths ranging between
51–695 m
(
Opresko, 2009
;
Cairns
et al.
, 1993
;
Opresko, 1972
;
Brook, 1889
;
Pourtales, 1871
). The only Bermudan specimen examined as part of this study was collected at a depth of
304 m
(
Table 1
).