Revision of the genus Turris Batsch, 1789 (Gastropoda: Conoidea: Turridae) with the description of six new species
Author
Kilburn, Richard N.
Author
Fedosov, Alexander E.
Author
Olivera, Baldomero M.
text
Zootaxa
2012
2012-03-22
3244
1
1
58
https://biotaxa.org/Zootaxa/article/view/zootaxa.3244.1.1
journal article
10.11646/zootaxa.3244.1.1
20d1b63e-e569-489f-8e0a-165ae81b3204
1175-5326
246329
Turris crispa
(
Lamarck, 1816
)
Plate 10
, figs A–M
Pleurotoma crispa
Lamarck, 1816: 8
, pl. 439, fig. 4;
Lamarck 1822: 95
;
Weinkauff 1875: 9
, pl. 1, figs 1–2. Type loc.: not given.
Turris crispa
;
Hedley 1922: 215
;
Hasegawa
et al.
2000: 631
, pl. 314, fig. 61.
Turris crispa crispa
;
Powell 1964: 330
, pl. 181, figs 9–12;
Powell 1966
: text-fig. C41 (radula);
Cernohorsky 1972: 182
, pl. 53, fig. 2;
Kira 1972: 100
, pl. 36, fig. 5;
Ladd 1982: 63
, pl. 19, figs 6–7;
Wilson 1994: 194
, pl. 38, figs 5 a–b, 10 a–b.
Turris crispa
;
Vera-Peláez
et al.
2000
: pl. 3, figs 7–9 (protoconch), pl. 7, figs 11–13;
Li & Li 2007: 64
, pl. 1, figs 2–3.
Turris dollyae
Olivera, 2000: 298
, pl. 1, specimen 2, pls 2, 6;
Olivera, Sysoev, 2008
: pl. 681, fig. 1;
Dharma 2005
: pl. 41, fig. 9.
Type loc.: Tabaco Bay, Albay,
Philippines
,
50–
100 m
.
Syn. Nov.
DESCRIPTION: Shell very elongate and acuminately fusiform (b/l 0.22–0.23, a/l 0.42–0.50 (see below for Australian examples), spire angle
ca
20–22º), siphonal canal very long and straight, sometimes forming a slight fasciole with a slit-like false umbilicus; whorls gently and more or less evenly rounded, with peripheral cord barely or not projecting. Anal sinus deep and linear, widening at the opening.
Surface dull and roughened by lamellate collabral threads, which may form scales in the interstices; main spiral cords (particularly the peripheral one) with microscopic spiral threads. Early whorls with three equal cords, the median one granulose. Subsutural cord narrow, bearing a strong, broadly angular ridge and 1–2 thinner ridges above or two subequal ridges. Sulcus moderately wide, flatly concave with gently sloping sides, bearing 3–4 low threads. Sinus cord moderately raised, top concave to shallowly bifid, sloping, often with lunulate growth lines. Base of spire whorls with 3 angular cords, the upper one strongest (peripheral), the anterior pair equal to one another. Base of last whorl with
ca
21 ridges, upper 3 angular and wide-set, those on rostrum even and relatively close; wider intervals with 2
–
4 fine intermediary threads. Finer threads rendered scaly by collabral threads, particularly in subsutural area.
White to brownish-white, spiral ridges with brown or black axial bars or lines, often more or less aligned to form wavy axial lines, particularly in juveniles.
Maximum length
123 mm
.
Protoconch cyrtoconoid, of 3.0–3.5 whorls, smooth initially, with opisthocyrt riblets on last whorl, base
ca
0.80 mm
wide, termination concave; colour deep brown (partly after
Vera-Peláez
et al.
2000
).
DISTRIBUTION: Southern
Natal
and Western
Australia
north through the Indian Ocean to west coast of
Thailand
and
Malasia
, and through the Western Pacific to
China
,
Japan
and
Fiji
, and south to
New Caledonia
; lives in clean or muddy sand, sometimes amongst marine grass, intertidal to
60 m
.
TYPES:
P. c r is p a
:
holotype
MHNG 1097/68
(with Lamarck’s label); annotated “Oc. indien”.
T. dollyae
: holotype
PNM
,
paratypes
in
NHMUK
,
AMNH
and
USNM
;
paratype
13
NMSA
L5589
.
OTHER MATERIAL EXAMINED:
VIETNAM: off Nha Trang, N. Thach (
NMSA
L8198)
.
PHILIPPINES: Aliguay Is., Mindanao,
25–40 m
, BO colln
;
Sogod,
250 m
, Aliguay Is, Mindanao,
80–150 m
, and Olango Is.,
10–25 m
(Guido Poppe colln)
;
Bogo, Cebu (
NMSA
L5589: BO,
paratype
3 of
Turris dollyae
)
;
Sogod, Cebu (BO colln)
;
Matanos, Samal Is., Davao Gulf, Mindanao, 80–130 fath. [
146–238 m
] (
NMSA
L8202: BO)
.
THAILAND: Phromthep Cape, Phuket Is.,
ca
15 m
(
NMSA
L8107: S. Patamakanthan)
.
AUSTRALIA: Port Hedland, N.W. Australia (
NMSA
J5069: Rinkens)
;
off Cape Moreton, trawled in ”deep water” (
NMSA
: J5870: A. & B. Boorman)
.
NORTHERN MOZAMBIQUE: Conducia Bay, W. of Choca, littoral (
NMSA
: H2443: K. Grosch)
.
“Southern Mozambique” (BO colln). MADAGASCAR:
15°01.8’S
, 46°
58.6E
,
57-69m
(
MNHN
)
;
SOUTH AFRICA: S. E. of Kosi Bay, northern Zululand,
50 m
, fine sand (
NMSA
D9674: RK
et al,
)
;
off Hully Point, northern Zululand,
60 m
, shell rubble (
NMSA
D6707: RK
et al
)
;
N.E. of Leven Point, northern Zululand,
42–50 m
, sand with pennatulids (
NMSA
E4433: RK
at al
.)
;
off Phumula, southern Natal,
36 m
, living in sand on low profile reef, unusually dark specimen (
NMSA
W7498: M. Wallace)
;
NEW CALEDONIA:
22°58’S
,
166°56’E
,
26m
,
MNHN
;
22°50’S
,
166°51’E
,
32m
,
MNHN
;
20°09’S
,
163°53’E
,
23m
,
MNHN
;
CORAL SEA:
19°01’S
,
158°32’E
,
58m
,
MNHN
.
PLATE 10.
Turris crispa
(
Lamark, 1816
)
: A
,
B
—
Holotype
of
Pleurotoma crispa
, locality unknown,
MHNG
, 1097/68, 55.5 x 13.0 mm;
C
,
D
—off Nha Trang,
Vietnam
,
NMSA
L8198, N. Thach, 110.7 x
24.5 mm
;
E
—Southern
Mozambique
,
120 m
, BO colln, 91.0 x 23.0 mm,;
F
—93.1 x
23.9 mm
, Southern
Mozambique
,
40–50 m
, BO colln.
G
—36.3 x
9.3 mm
, Noumea,
New Caledonia
,
NMSA
K5775;
H,
I—Cape Moreton, Queensland, deep water,
NMSA
J5870, 54.7 x
14.2 mm
;
J
,
K
—
Holotype
of
Turris dollyae
Olivera, 2000
, Tabaco Bay, Luzon,
Philippines
, PNMM-40066, 119.0 x
25.6 mm
;
L
—Sogod, Cebu,
Philippines
, BO colln, 85.7 x
20.3mm
;
M
—Aliguay, Zamboanga,
Philippines
,
24–50 m
, BO colln, 77.1 x
17.2 mm
.
REMARKS:
Powell (1964)
treated the widely-distributed
Turris crispa
(
Lamarck, 1816
)
as a polytypic species. No statement was offered in explanation of this action, other than the apparent allopatry and similarity of the four taxa there referred. The only shared character of possible significance is the presence of relatively strong collabral threads, although these occur also in species such as
Turris amicta
(
E. A. Smith, 1877
)
. Even if treated as a synapomorphy this sculpture cannot be used as a species-level character, as several of the so-called subspecies are parapatric/partially sympatric. Thus
Turris crispa crispa
and
T. crispa yeddoensis
(
Jousseaume, 1883
)
are sympatric in parts of southern
Japan
and reportedly (
Vera-Peláez
et al.
2000
) in the
Philippines
. At least one other member of the species-complex,
Turris grandis
(Gray in Griffith & Pidgeon, 1833), is sympatric with
T. crispa
in
Vietnam
and the
Philippines
. Consequently, it is preferable to regard each of these taxa as a full species.
Turris dollyae
Olivera, 2000
, is indistinguishable from
T. crispa
(
paratypes
compared with photographs of the
holotype
of the latter and with specimens).
Most available Australian specimens (Pl. 10, figs H–I) lack precise data, but appear to indicate distinct regional variation; they are all very small (largest measured
54.1 mm
) and very pale (yellowish-white or “biscuit-colour” with small and faint brownish marks). They also differ in proportions (e.g. b/l 0.25–0.27, a/l 0.40–0.42) and shorter siphonal canal (equal in length to length of rest of aperture, instead of distinctly longer than it as in typical
T. crispa
). Such a specimen is illustrated by
Wilson (1994
: pl. 38, figs 5 a–b); however, his pl. 39, figs 10 a–b appears to show a typical specimen, so obviously much more Australian material is needed.