Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917
Author
Brook, Fred J.
Author
Ablett, Jonathan D.
text
Zootaxa
2019
2019-11-14
4697
1
1
117
journal article
24883
10.11646/zootaxa.4697.1.1
2a01bfb5-6e33-42b5-ab5d-4f8512c9128f
1175-5326
3542832
AF79BEA3-3CC8-49CA-9707-A8D5B4DAACD
Zonites coma
Gray, 1843
Pl. 4, fig. A
Gray [in Dieffenbach], 1843b. Catalogue of the species of
Mollusca
.
In
: Travels in
New Zealand
, 2: 263.
Type material:
Lectotype
(here designated),
NHMUK
1842.11.5.141;
paralectotypes
(2),
NHMUK
1842.11.5.142– 143 (dry shell material).
Label details:
‘
N.
Zealand
,
Dr. A. Sinclair’
Type
locality:
‘New Zealand’ (Gray [in Dieffenbach] 1843b: 263).
Previous illustrations of
type
material:
Smith
(1874
: pl. 1, fig. 3). A shell illustrated by
Pfeiffer
(1853 [in Pfeiffer
1852–1860
]: pl. 155, figs. 37–39) may be from the
type
series.
Shells
of
Helix coma
illustrated by
Reeve
(1852 [in
1851–1854
]: pl. 130, fig. 796, pl. 131, fig. 800) were from the Cuming collection, and there is no evidence to indicate that they were from the
type
series.
Remarks:
The original description of this species, which was reproduced by
Gray (1844: 454)
, was based on material obtained by Dr. Andrew Sinclair on a trip to
New Zealand
in
1841–1842
and presented to the British Museum. The type series consists of a mixed lot of three specimens that were all listed as ‘
Zonites coma
’ in the NHMUK accessions register for
Mollusca
, with the registration numbers 1842.11.5.141–143. The specimen illustrated in pl. 4, fig. A, which matches Gray’s original description of
coma
, and corresponds to
New Zealand
workers’ interpretation of this species (e.g.,
Suter 1913b: 705
, pl. 27, figs. 20, a, b;
Climo 1970a: 294
, figs. 11 L, 19 C, E, pl. 2, figs. A, C;
Powell 1979: 303
, pl. 57, fig. 9), is designated here as the
lectotype
of
Zonites coma
Gray, 1843
. The other two specimens in the type lot include a badly-damaged shell that appears to be
Charopa montivaga
Suter, 1894
(NHMUK 1842.11.5.142), and a well-preserved shell of
Chaureopa titirangiensis
(Suter, 1896)
(NHMUK 1842.11.5.143). There is no information in the original description of
Zonites coma
, on the labels of the type lot, or in the accessions register, as to where in
New Zealand
Sinclair collected the type material. Of the localities that he visited in
1841–1842
(see Introduction for itinerary), the
lectotype
of
Zonites coma
most closely matches shells in populations from the vicinity of
Auckland
, and
Auckland
is here nominated as the type locality for this species. The two
paralectotypes
may also have been collected in or around
Auckland
.
Charopa montivaga
is widely distributed throughout the North Island from
Auckland
south, and
Chaureopa titirangiensis
is distributed throughout the northern North Island (
Climo 1985
; AIM and NMNZ collection records).
Zonites coma
Gray, 1843
is the type species of
Charopa
[Albers MS.]
Martens, 1860
, by original designation.
Current Taxonomy:
Listed as
Charopa coma
(Gray, 1843)
by
Hedley & Suter (1893: 653)
, Iredale (1915: 481),
Climo (1970a: 295)
,
Powell (1979: 303)
and
Spencer
et al
. (2009: 215)
.
Distribution:
New Zealand
; currently interpreted as having a wide distribution in North, South and Stewart islands (e.g.,
Suter 1913b: 706
;
Climo 1970a: 295
;
Powell 1979: 303
), but preliminary results of a phylogenetic study (M. Kennedy & F. Brook unpub. data) indicate that this refers to a species complex, and the identity and distribution of Gray’s species need to be re-evaluated. Historical records from
Australia
(e.g., by
Pfeiffer 1859: 94
;
Hector 1873: 12
) were in error (see
Hedley & Suter 1893: 616
).