The genus Litophyton Forskål, 1775 (Octocorallia: Alcyonacea: Nephtheidae) from Australia
Author
Van Ofwegen, Leen P.
text
Zootaxa
2020
2020-04-16
4764
1
1
131
journal article
22824
10.11646/zootaxa.4764.1.1
55f6b110-0a37-45fe-be1c-34e9a035fe0e
1175-5334
3764923
urn:lsid:zoobank.org:pub:53C5289A-156C-4AF1-B84A-73099A332C05
Litophyton legiopolypum
(
Verseveldt & Alderslade, 1982
)
(
Figs. 41
c-d, 42b, 45-46)
Nephthea legiopolypa
Verseveldt & Alderslade, 1982: 633
,
Fig. 8
, pl. 7B.
Material examined
.
Holotype
AM G14806
,
Great Barrier Reef
, west tip of
Palfrey Island
, on reef slope, depth
4.5-6 m
, rubble, sand and corals,
3 November 1975
, coll.
H.K. Larson
no. DFH 75-254;
RMNH 12438
, part of
holotype
, 6 microscope slides;
RMNH 14722
,
Australia
,
Lizard Island
,
30-40 feet
, 7 microscope slides;
NTM C200
,
Queensland
,
Great Barrier Reef
, off
Cairns
,
December 1976
, coll.
P. Alderslade
;
NTM C566-567
,
March 1978
, coll.
D. Schubot
;
NTM C713-714,
March 1978
, coll. D. Schubot;
NTM C11054
,
Queensland
,
Great Barrier Reef
,
Elford
reef, depth
6 m
,
10 November 1989
, coll.
B. Bowden
.
Remarks
. For a description see
Verseveldt & Alderslade (1982)
. Although these authors depicted a polyp with projecting supporting bundle, the current study indicates that this is not the case for all the polyps. Here I present SEM images of the sclerites of NTM C11054 (
Fig. 45
) and the polyp armature of the
holotype
as given by Verseveldt & Alderslade (
Fig. 42b
).
Apparently the base of the
holotype
was missing, therefore other material shows different sclerites in this part of the colony; shorter spindles in the interior which may have side branches (
Fig. 45k
).
NTM C713 and NTM C714 (
Figs. 41
c-d, 46) are somewhat different from the other material, the polyps have more spindles instead of scales (
Fig. 46b
). The depicted stalk sclerites of NTM C713 are sampled somewhat above the base of the colony, the presented interior stalk sclerites are less branched and somewhat longer (
Fig. 46j
). The sclerites of these specimens resemble NTM C2939 and NTM C10003 of
L
.
brewerensis
(
Fig. 44h
), but differ in the tuberculation of the interior stalk spindles, being much coarser in
L
.
legiopolypum
.
The species should not be confused with
L
.
mollis
as that species has not so many internal stalk spindles with side branches, no projecting supporting bundles, and more spindles in the polyp body than
L
.
legiopolypum
.