Revision of the Australian species of Anatomidae (Mollusca: Gastropoda: Vetigastropoda)
Author
Geiger, Daniel L.
Author
Jansen, Patty
text
Zootaxa
2004
2004-01-28
415
415
1
35
journal article
4887
10.11646/zootaxa.415.1.1
492b2757-6d0c-489b-a611-2644760307c7
11755334
5228320
65EC7C1E-178D-4358-82C2-F8065B5BD832
Anatoma australis
(
Hedley, 1903
)
:
Figures 3–5
,
18
Scissurella australis
Hedley, 1903: 329–330
, fig. 63.
Scissurella australis
:
Hedley, 1907: 288
.
Scissurella australis
:
Verco, 1910: 115
.
Scissurella australis
:
Thiele, 1912: 19
, pl. 3, fig. 1 [copy of figure in
Hedley, 1903
].
Schizotrochus australis
:
Cotton & Godfrey, 1933: 22–23
, pl. 1, fig. 10.
Schizotrochus australis
:
Iredale & McMichael, 1962: 30
.
Schizotrochus australis
:
Macpherson & Gabriel, 1962: 34
.
Scissurella
(
Anatoma
)
australis
:
Wilson, 1993: 46
.
Anatoma australis
:
Jansen, 1995
, 11.
Anatoma australis
:
Hickman, 1998
: fig. 15.52 A–B.
Anatoma australis
:
Jansen, 1999: 48
, figs. 4–6.
Anatoma
“SWA”:
Jansen, 1999: 50
, figs. 16–18.
Type material
.
HOLOTYPE
(
AMS
C.16223), 3 x
2.5 mm
(W x H).
PARATYPES
: 3 (
AMS
C.170412).
Type
locality
. [5–8 mls.] off
Port Kembla
, [NSW,] 63–75 fms. [=
115–137 m
;
34.465°S
,
151.075°E
] (OD)
.
Etymology
. Most likely referring to the occurrence in the southern hemisphere.
Description
. Shell globular, medium size to large (
3.6 mm
). Protoconch 3/4 whorls, with flocculant sculpture, varix present, varix not connected to embryonic cap. Teleoconch I with spiral cord in area of selenizone, often with additional spiral cords, but no centrifugal cords, more than 0.5 whorls. Teleoconch II with up to 2.5 whorls. Sculpture on shoulder consisting of 1–4 spirals at the start of teleoconch II, approximately 12 spirals at aperture of fully grown specimens (
2.5 mm
), spirals on early part of teleoconch II much weaker than axials, at aperture at most as strong as axials; approximately 70–75 axials on shoulder and base of body whorl in fully grown shell. Base with approximately a dozen spiral cords. Spirals on base as strong as axials; spirals running over axials forming weak nodule. Umbilicus sloping continuously from base, narrow, deep. Selenizone at periphery, keels distinct, growth lines in selenizone not coordinated with axials; margins of slit converging towards apertural margin of shell. Aperture rounded, somewhat flared. Operculum multispiral, nucleus central, corneus, thin. Animal unknown.
FIGURE 3.
Anatoma australis
. AMS C.400817. Capricorn Channel, 16.8 miles NE of North Reef, QLD, Australia. Scale bar shell = 200 µm. Scale bars spire and protoconch = 50 µm.
FIGURE 4.
Anatoma australis
. A. AMS C.400817. Capricorn Channel, 16.8 miles NE of North Reef, QLD, Australia. Second specimen from lot, see Figure 3. B. AMS C.400805. E of Caloundra, QLD, Australia. C. AMS C.400811. Capricorn Channel, E of Lady Musgrave Island, QLD, Australia. Scale bars shell = 200 µm. Scale bars spire and protoconch = 50 µm.
FIGURE 5.
Anatoma australis
. A. AMS C.402717. 238 m, SW of Cape Naturaliste, WA, Australia. B. AMS C.402720. 274 m, NW of Beagle Island, WA, Australia. C. AMS C.402721. 197 m, NW of Green Head, WA, Australia. Scale bars shell = 200 µm. Scale bars spire and protoconch = 50 µm.
Differential diagnosis
.
Anatoma tobeyoides
n. sp.
lacks the protoconch varix, on teleoconch I of fewer than 0.5 whorls, lacks a spiral cord in area of selenizone, and has fine centrifugal lines, but no true spiral sculpture.
Distribution
. WA (
Cape
Naturaliste:
33.8°S
to
11.5°S
), NSW (Port Kembla:
34.5°S
) and QLD (Swain’s Reef:
22.5°S
),
27–1,463 m
depth shells only,
176 m
live.
Specimen Records
.
QLD.
201 m
, off S end
Fraser Island
,
27.952S
,
153.851E
(
AMS
C.400802, 3)
.
128 m
, off
Cape
Moreton
,
27S,
153.583E
(
AMS
C.400806, 17)
.
115 m
,
NE of
Cape
Moreton
light,
26.925S
,
153.558E
(
AMS
C.400807, 17;
AMS
C.400810, 3)
.
183 m
,
NNE of
Cape
Moreton
,
26.875S
,
153.6E
(
AMS
C.400809, 20+)
.
128 m
, E of
Caloundra
,
26.8S
,
153.583E
(
AMS
C.400805, 20+)
.
200 m
, off
Maroochydore
,
26.687S
,
153.64E
(
AMS
C.400808, 9)
.
128 m
, ESE of
Noosa Heads
,
26.567S
,
153.667E
(
AMS
C.400804, 18)
.
210 m
, off
Fraser Island
,
24.965S
,
153.622E
(
AMS
C.400818, 6)
.
150 m
, NE of
Lady Elliot Island
,
24.062S
,
152.823E
(
AMS
C.400813, 4)
.
175 m
, E of
Lady Musgrave Island
,
23.853S
,
152.575E
(
AMS
C.400814, 20+)
.
132 m
,
Capricorn Channel
,
E of Lady Musgrave Island
,
23.835S
,
152.535E
(
AMS
C.400811, 21)
.
284 m
,
Capricorn Channel
,
E of
North West
Island
,
23.253S
,
152.402E
(
AMS
C.400816, 4)
.
155 m
,
Capricorn Channel
,
23.143S
,
152.277E
(
AMS
C.400815, 12)
.
115 m
,
Capricorn Channel
, 16.8 ml
NE of North Reef
,
23.14S
,
152.205E
(
AMS
C.400817, 20+)
.
78 m
, SE of
Swain Reefs
,
22.518S
,
152.71E
(
AMS
C.400812, 3)
.
187 m
, SE of
Swain Reefs
,
22.438S
,
153.285E
(
AMS
C.400803, 20+)
.
NSW.
115 m
, 5–8 mls off
Port Kembla
,
34.465S
,
151.075E
(
AMS
C.16223, 1;
AMS
C.170412, 3)
.
183 m
, 16 mls E of
Wollongong
,
34.417S
,
151.25E
(
AMS
C.17988, 3)
.
161 m
, off
Port Kembla
,
34.333S
,
151.3E
(
AMS
C.400796, 1)
.
205 m
, S of
Port Hacking
,
34.16S
,
151.438E
(
AMS
C.346346, 1)
.
750 m
, off
Sydney
,
34.083S
,
151.727E
(
AMS
C.402694, 11)
.
79 m
, off
Sydney
,
34.05S
,
151.617E
(
AMS
C.400793, 3; C.402613, 1)
.
150 m
, 0ff
Sydney
,
33.967S
,
151.483E
(
AMS
C.400792, 14)
.
200 m
, off
Sydney
,
33.872S
,
151.667E
(
AMS
C.400798, 8)
.
1463 m
, 35 mls E of
Sydney
,
33.85S
,
151.967E
(
AMS
C.26669, 4)
.
109 m
, off
Port Jackson
,
33.833S
,
151.45E
(
AMS
C.400801, 1)
.
176 m
, off
Sydney
,
33.767S
,
151.717E
(
AMS
C.400791, 20+, 2: complete)
.
174 m
, off
Sydney
,
33.717S
,
151.767E
(
AMS
C.400794, 1)
.
143 m
, off
Broken Bay
,
33.717S
,
151.667E
(
AMS
C.400795, 2; C.400797, 2)
.
146 m
, 22 mls
E of Narrabeen
, N of
Sydney
,
33.7S
,
151.717E
(
AMS
C.25803, 11)
.
132 m
, off
Norah Head
,
33.333S
,
151.933E
(
AMS
C.400799, 1)
.
183 m
, NE of
Port Macquarie
,
31.383S
,
153.2E
(
AMS
C.37724, 2)
.
185 m
,
24 km
E of
Ballina
,
28.827S
,
153.855E
(
AMS
C.400800, 9)
.
TAS.
113 m
, N of
Great Oyster Bay
,
41.758S
,
148.517E
(
LACM 73–156
,
2
)
.
WA.
27 m
,
Sahul Banks
,
Timor Sea
,
11.5S
,
125.5E
(
AMS 377600
,
1
)
.
Point Quobba
,
N of Carnarvon
,
24.483S
,
113.417E
(
AMS 379976
,
1
)
.
108 m
, off
North West
Cape
,
22.705S
,
113.54E
(
AMS 402644
,
1
;
AMS 402645
,
1
)
.
238 m
,
North West
Shelf
, ca 230ml
W Roebuck Bay
,
18.5S
,
118.05E
(
AMS 402676
,
1
)
.
238 m
,
SW of
Cape
Naturaliste
,
33.742S
,
114.435E
(
AMS 402717
,
8
)
.
256 m
, NW of
Cervantes
,
30.5S
,
114.633E
(
AMS 402718
,
10
)
.
155 m
, NW of
Bunbury
,
33.25S
,
114.617E
(
AMS 402719
,
1
)
.
274 m
, NW of
Beagle Is
,
29.717S
,
114.283E
(
AMS 402720
,
7
)
.
197 m
, NW of
Green Head
,
29.967S
,
114.45E
(
AMS 402721
,
1
)
.
176 m
, W of
Garden Is
,
32.262S
,
115.112E
(
AMS 402741
,
1
)
.
146 m
, W of
Dongara
,
29.35S
,
114.117E
(
AMS 402742
,
1
)
.
183 m
, W of
Dongara
,
29.142S
,
113.913E
(
AMS 402743
,
1
)
.
219 m
, W.of
Dongara
,
29.183S
,
113.9E
(
AMS 402744
,
1
)
.
223 m
, off
Jurien Bay
,
30.133S
,
114.5E
(
AMS 402745
,
1
)
.
183 m
, NW of
Beagle Is
,
29.725S
,
114.333E
(
AMS 402746
,
1
)
.
200 m
, NW of
Bunbury
,
33S
,
114.617E
(
AMS 402747
,
6
)
.
237 m
, W of
Green Head
,
30.75S
,
114.767E
(
AMS 402748
,
1
)
.
160 m
, off
Rottnest Is
,
31.65S
,
115.08E
(
AMS 402749
,
1
)
.
732 m
, W of
Rottnest Is
,
31.083S
,
114.767E
(
AMS 402751
,
1
)
.
210 m
, W of
Garden Is
,
32.25S
,
115.117E
(
AMS 402750
,
2
)
.
238 m
, off
Cervantes
Is,
30.533S
,
114.683E
(
AMS 402752
,
2
)
.
Literature record
. Off Wilson’s Promotory (
Macpherson & Gabriel, 1962
).
Remarks
.
Jansen (1999)
separated the Western Australian specimens of
A. australis
under the informal name
A.
SWA. SEM did not reveal any consistent differences between east and west coast specimens, hence, we reunite the Western Australian specimens under
A. australis
.