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Records of the Australian Museum (2017) Vol. 69 
do Norte” (North Point Lighthouse), Santa Maria Island. 
Ponta do Norte is now clearly understood to be in early 
Zanclean Touril Complex, following the reinterpretation by 
Sibrant etal. (2015). Unfortunately, the apertural side of the 
neotype is poorly preserved, the specimen evidently having 
been attached to the outcrop by this side, but the specimen 
definitely has spiral folds and fine axial ridges over the 
entire teleoconch, and has a low spire as in all other small 
specimens of J. typica. 
Heligmope dennanti, five syntypes in SAMA Tate type 
collection; SAMA T1494A-B, two syntypes, “Miocene”, 
Muddy Creek, near Hamilton, western Victoria (Grange 
Burn Formation, Kalimnan Australian Stage, Zanclean, early 
Pliocene; Beu & Darragh, 2001: fig. 6); SAMAT1515A-C, 
three syntypes, Hallett Cove Sandstone (Piacenzian), labelled 
“Miocene, Hallett’s Cove, St Vincent Gulf’, coast south of 
Adelaide, South Australia. The specimens from Grange Bum 
Formation (T1494A-B) are both well-preserved specimens 
of Janthina typica. In contrast, one of those from Hallett 
Cove Sandstone (T1515B) is a small, incomplete shell 
probably assignable to J. typica , with a low spire and obvious 
spiral folds all over, whereas the other two (T1515A, C) are 
more complete specimens with no spiral folds on the sutural 
ramp. They are identified as J. chavani , despite Ludbrook’s 
(1978: 122) misgivings about their identity. As noted 
above under “Biostratigraphy”, the specimen of J. typica 
presumably is from the lower, early Piacenzian part of the 
formation, whereas the specimens of J. chavani presumably 
are from the overlying late Piacenzian-Gelasian part of the 
formation. Tate’s two Muddy Creek syntypes were illustrated 
by Ludbrook(1973: pi. 28, figs 93-94) in an unusual oblique 
dorso-lateral view necessitated by their still being glued to 
Tate’s tablet. A lectotype designation is necessary because 
two species are present among Tate’s syntypes. Tate’s figured 
syntype, SAMA T1494A (Fig. 25L) from Grange Burn 
Formation at Muddy Creek, Victoria, is much the larger of the 
Muddy Creek syntypes and is here designated the lectotype 
of Heligmope dennanti. The paralectotype T1494B is a 
juvenile specimen. The lectotype has the spire tip missing, 
but both Muddy Creek specimens have obvious, prominent 
spiral folds over the entire teleoconch and are conspecific 
with the neotype of Hartungia typica. 
Turbo postulatus , holotype basal fragment not found in 
AUGD (N. Hudson, AUGD pers. comm. 24 Sep 2012). The 
specimen selected by Bartrum & Powell (1928: 141, pi. 25, 
figs 6-7) as the “neotype”, AUGD G5721 (Figs 24D-E) 
is here again designated the neotype of Turbo postulatus , 
although it had no status as a neotype in 1928, as the original 
type material was still available (ICZN Article 75.1). Both 
specimens are from Kaawa Creek, coast south of Waikato 
Heads, southwest Auckland, North Island, New Zealand 
(Opoitian New Zealand Stage, Zanclean, early Pliocene; 
Cooper, 2004: fig. 13.1). Material of Janthina typica from 
this site is rather fragile and tends to disintegrate through the 
calcite outer layer flaking off the aragonite inner layer, and 
the neotype has been reassembled recently by N. Hudson 
(AUGD), so presumably the holotype fragment disintegrated 
many years ago. A neotype is required to establish that the 
name applies to J. typica rather than supplanting J. chavani , 
which occurs at several other New Zealand localities. The 
neotype is an unusual, highly inflated, subspherical specimen 
with a short spire, relatively weak spiral folds, a strongly 
and evenly inflated last whorl, and a particularly prominent 
major fold generated by the sinus in the outer lip, but agrees 
with other material of J. typica in having spiral folds over 
the entire surface. Other specimens from Kaawa Creek (e.g., 
Figs 24F-I) are closely similar to specimens from Grange 
Burn Formation at Muddy Creek, Victoria (Figs 25A-C, L) 
and the neotype of Hartungia typica in shape and sculpture, 
and there is no doubt that the Kaawa Creek population falls 
within the variation of Janthina typica. 
Acrybia (Hartungia) chouberti , holotype in G. Lecointre 
collection, Service Geologique du Maroc, Rabat, Morocco, 
P7064 (Ludbrook, 1978: 122, pi. 12, figs 17-19; Figs 24 J-K, 
O), not seen; plaster casts in Paleontologie collection, 
MNHN, and GNS WM7327. The type locality in Morocco 
was described by Chavan (1951) as “Ain Sebaa, cuttings 
from well 10 ... in sandstone, with Semicassis cf. laevigata 
(Defr.), Gryphaea forskali (Chemn.), Balanus perforatus 
Brug. Holotype ...; two fragments; one internal mould” 
(translation from Chavan, 1951: 136). However, the cast in 
GNS (WM7327) bears the locality label “Dar bel Hamri”. 
The locality was described by Chavan (1951: 135) as “from 
the series of l’Oued Fouarat”, and is known in most works 
on Moroccan Plio-Pleistocene stratigraphy (e.g., Arambourg, 
1969) as Fouarat. Fouarat was located on the map by 
Lecointre (1963: 22) a few kilometres east of Casablanca. 
The holotype was said by Chavan (1951: 135) to be “a 
little taller than wide”, but his illustration of the holotype 
(Chavan, 1951: fig. 1) shows a specimen that is slightly 
wider than it is tall, although with the spire apex missing. 
He stated the dimensions as “height: 32 to 34 mm; width: 
30 mm” (Chavan, 1951: 136), but his drawing, stated to be 
enlarged x 1.75, provides dimensions of H 30, D 32 mm, so 
possibly Chavan accidentally reversed the dimensions. The 
unwhitened photographs sent to Ludbrook (1978: pi. 12, figs 
17-19) from Rabat, Morocco, were sent in turn to the writer 
by N. Ludbrook (Figs 24J-K, O) and show again that it is 
a specimen of Janthina typica with unusually numerous, 
prominent, narrow spiral folds on the sutural ramp, similar 
to those of the lectotype of Heligmope dennanti (Fig. 25L). 
Parajanthina japonica is included below under Janthina 
chavani (Ludbrook, 1978). Hartungia elegans, holotype in 
Department of Earth Sciences, Nagoya University, ESN2687, 
from Tano Formation (late Miocene, late Tortonian-early 
Messinian, planktonic foraminiferal zone N17) at Tano, 
Miyazaki Prefecture, near the east coast of Kyushu, Japan 
(Tomida & Nakamura, 2001: 217, fig. la); one paratype 
MFM111029, from Senhata Formation, Miura Group (late 
Miocene, also zone N17) at Motona, Chiba Prefecture, 
east side of Tokyo Bay, Boso Peninsula, Honshu, Japan 
(Tomida & Nakamura, 2001: 217-218, fig. lb); not seen. 
These specimens have obvious spiral folds all over and 
are interpreted here as severely dorsoventrally to obliquely 
compressed internal moulds of Janthina typica ; several 
similar specimens have been collected in New Zealand. 
Eunaticina abyssalis, holotype MNHN IM.2000-27158 
(only known specimen; Figs 25G, I-K, M) from Marion 
Dufresne cruise MD55 (BRESIL) station 45-CB79, 
19°01'59.9916"S 37 0 47'59.9964 M W, 1500-1575 m, off 
Itaunas, Espiritu Santo State, Brazil, SW Atlantic, collected 
by P. Bouchet, B. Metivier and J. Leal, 25 May 1987. The 
holotype was said by Simone (2014: 587) to be in “compact 
blocks (no living specimen)”, and is a Pliocene fossil 
specimen of Janthina typica enclosed in weakly lithified 
cream limestone (“globigerina ooze”) dredged from the sea 
