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
Villogorgia tenuis
(
Thomson & Simpson, 1909
)
Acamptogorgia tenuis
Thomson & Simpson, 1909: 230–232
, pl. 3, fig. 4&8; pl.8, fig. 7 (Andamans).
Opinion: This species does occur in the region but its true identity is unknown.
Justification:
These Indian records seem to be either invalid or unconfirmable
:
Fernando 2011: 55
, pl.32, fig. 1–1e (Cuddalore);
Kumar
et al
. 2014a: 88
, pl. 41, fig A–E (Guitor Island, Middle Andaman);
Fernando
et al
. 2017: 117
, pl. 53, fig. 1–1e (Cuddalore).
Literature analysis
: The species was originally described as
Acamptogorgia tenuis
from the Andamans with illustrations of a reticulate colony and a few sclerites, and at present most of the characteristics of the species are unknown. A non-reticulate colony from Providence Island (then part of
Mauritius
) was later illustrated and assigned to this species by
Thomson & Russell (1910)
, and
Kükenthal (1924)
included the species when dealing with taxa he grouped as
Echinomuricea
, but only as an uncertain identification.
Kumar
et al
. (2014a)
record material as
Villogorgia tenuis
erroneously citing the authorship as “(
Nutting, 1908
)” and the prime reference as Thomson & Henderson (1909). Their colony does not have the growth form of a
Villogorgia
and there are no characteristic
Villogorgia
sclerites in their figure despite describing them in their text.
In their identical accounts,
Fernando (2011)
and
Fernando
et al
. (2017)
attributed material to this species but it appears quite a different species. These authors record the calicular thorn scales as having an apparently foliaceous projection
0.12–0.2 mm
long, while those of Thomson & Simpson’s specimen have a spine-like projection only
0.025–0.5 mm
in length. They also figure one of the typical forms of a
Villogorgia
coenenchymal sclerite that has a complex foliaceous upper portion and 3–4 root-like legs, a form that is not mentioned in Thomson & Simpson’s account. Similar to their description of
Villogorgia ceylonensis
,
Fernando (2011)
and
Fernando
et al.
(2017)
mistakenly cite an occurrence in
Bayer 1981
as a synonym. That publication is a key in which the species is not mentioned. Bayer only illustrated a typical thornscale from the genera
Acamptogorgia
,
Brandella
and
Perisceles
, which are all synonyms of
Villogorgia
.
Rao & Devi (2003)
just list the species under the original name, and
Kumar
et al.
(2015
,
2018
) list the species and figure the specimen from their 2014 paper.