The taxonomy of Indian gorgonians: an assessment of the descriptive records of gorgonians (Anthozoa: Octocorallia: Alcyonacea) recorded as occurring in the territorial waters of India, along with neighbouring regions and the Andaman and Nicobar Islands, and the highlighting of perceived unethical practice
Author
Ramvilas, Ghosh
0000-0001-5028-9058
ramvilas@kufos.ac.in
Author
Alderslade, Philip
0000-0001-5801-4681
phil.alderslade@csiro.au
Author
Ranjeet, Kutty
0000-0001-5028-9058
ramvilas@kufos.ac.in
text
Zootaxa
2023
2023-02-07
5236
1
1
124
journal article
54753
10.11646/zootaxa.5236.1.1
64c50077-1b03-44c5-9af9-0dac9180d62d
1175-5326
7639327
796FF9F5-E71F-4C69-92CC-CF4D6752BD77
Leptogorgia lutkeni
(
Wright & Studer, 1889
)
Lophogorgia lutkeni
Wright & Studer, 1889: 150
, pl. 30, fig. 1, 1a; pl. 34, fig. 1 (Prince Edward Island).
Leptogorgia lutkeni
Bielschowsky 1918: 30
;
Williams & Lindo 1997: 511–513
, figs. 5, 9, 10A;
Williams & Vennam 2001: 89–90
.
Opinion: This species does not occur in the region.
Justification:
These Indian records seem to be either invalid or unconfirmable
:
Thomson & Henderson 1906: 264–265
(Andamans);
Thomson & Simpson 1909: 264–265
(Andamans);
Thomson & Crane 1909: 132–133
, fig. 11 (Beyt Island);
Thomson & Crane 1909a: 365
(Beyt Island—same material);
Fernando 2011: 91–91
, pl. 59, fig. 1–1c (Pamban);
Fernando
et al
. 2017: 191–192
, pl. 87, fig. 1–1c (Pamban).
Literature analysis
: This species was first obtained from Sub-Antarctic waters and was originally placed in
Lophogorgia
but was later transferred to
Leptogorgia
by Bielschowski (1918) when revising the genus—
Lophogorgia
is a junior synonym of
Leptogorgia
. Bielschowski stated that the Indian and
Sri
Lankan specimens identified as
Leptogorgia
l¸tkeni
by
Thomson & Henderson (1906)
,
Thomson & Simpson (1909)
and
Thomson & Crane (1909
,
1909a
) are not this species, which is not surprising as it was first collected off Prince Edward Island at a depth of over
550 m
.
The specimens these authors described were probably all species of
Pseudopterogorgia
(
Williams & Lindo 1997
)
, and that
Thomson & Henderson’s (1905)
was probably a new species (
Williams & Vennam 2001
).
The accounts provided by
Fernando (2011)
and
Fernando
et al
. (2017)
are identical and headed “
Pseudopterogorgia
l¸tkeni
(
Wright & Studer, 1889
)”. Their list of synonyms include “
Pseudopterogorgia
l¸tkeni
Williams & Lindo, 1997
” and “
Pseudopterogorgia
l¸tkeni
Williams & Vennam, 2001
”, when in fact both of these publications recognised the species as a
Leptogorgia
.
As the authors commented, the growth form of their material looks more like that of a species of
Lophorgorgia
but the sclerites include poorly developed scaphoids, however, the images are very small and the sclerites differences between
Leptogorgia
and
Pseudopterogorgia
can be very subtle (
Williams & Lindo 1997
). It is not until the end of their ‘Remarks’ section that the authors state their specimen is not the same as
Lophogorgia
l¸tkeni.
Rao & Devi (2003)
and
Venkataraman
et al
. (2004)
just listed the species.