Conus
(Lautoconus) kovacsi (Harzhauser & Landau, 2016)
Description.
Small, globose shells with mammillate, moderately high
spires and convex last whorls. Early spire whorls pointed but usually eroded; later
spire whorls faintly striate to smooth, weakly to strongly convex, partly
bulgy, forming conical to cyrtoconoid, gradate spire; suture deeply incised,
not channelled. Subsutural flexure shallow, moderately curved, moderately
asymmetrical. Last whorl with weakly angulated shoulder, position of maximum
diameter slightly below shoulder. Inflated to cylindrical below shoulder and
rapidly contracting in lower half of shell. Strongly constricted at base
separating a comparatively narrow and moderately long, weakly recurved siphonal
canal. Few spiral cords on base; faint spiral cords may appear on entire last
whorl.
Siphonal fasciole nearly absent. Colour pattern very
strong in UV light, consisting of four broad bands of partly amalgamated and
partly well separated blotches; first one closely below shoulder, second one
slightly above midwhorl, third one below mid-whorl above constriction, fourth
one on base and siphonal channel. Blotches of the uppermost band continue as
narrower flammulae on the last spire whorl; additional wide-spaced flammulae on
spire whorls (1).
This strange species was identified by Kovacs & Vician (2013) as Varioconus taurinensis (Bellardi & Michelotti, 1840), which develops also a weakly gradate spire but differs in its elongate and straight-sided last whorl (1).
Discussion. This is a very peculiar small cone, which is
characterised by its globose, columbellid shape unknown from any other
Paratethyan species. It is reminiscent of some species of the Indo-West Pacific
genus Pseudolilliconus Tucker & Tenorio, 2009, such as Pseudolilliconus traillii (Adams, 1855) and Pseudolilliconus
wallacei (Lorenz & Morrison,
2004), but the much larger size of the Paratethyan species makes a direct
relation with this tiny cone genus unlikely (1)..
This strange species was identified by Kovacs &
Vician (2013) as Varioconus
taurinensis (Bellardi & Michelotti,
1840), which develops also a weakly gradate spire but differs in its elongate
and straight-sided last whorl (see Landau et al. 2013 and references therein). Artemidiconus dertogranularis (Sacco, 1893), from the Tortonian of Stazzano in
Italy, is slightly similar in shape and size but differs in its typical
midwhorl groove on the spire whorls (1)..
This species is known so far only from
Letkes (1).
A non-Paratethyan occurrence, however,
might be represented by the specimen illustrated in Peyrot (1931, pl. 2, fig.
11) as Conus mucronatolaevis globospira (Sacco) from the Langhian of Salies-de-Bearn in the Aquitaine Basin. Conus globospira Sacco, 1893, from the Burdigalian of the Turin Hills,
differs clearly in its much more elongate last whorl (1).
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Conus kovacsi (1)
Holotype NHMW 2016/0003/0001 mm. 19,8 x 11,4 Letkes |
Conus kovacsi (1)
Paratype NHMW 2016/0003/0003 mm. 18,8 x 11,8 Letkes |
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Conus kovacsi (1)
Paratype
NHMW 2016/0003/0002 mm.
20,1 x 12,1
Letkes |
Conus kovacsi (1)
Paratype
NHMW 2016/0003/0004a mm.
18,7 x 11,7
Letkes |
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Conus kovacsi (1)
Paratype
NHMW 2016/0003/0004b mm.
17,2 x 10,0
Letkes |
Conus mucronatolaevis
globospira
(Sacco, 1893) Illustrato
da Peyrot (1931): Pl.1 fig. 19 Langhiano Salies de Bern – France |
Conus mucronatolaevis globospira (Sacco, 1893)Illustrato
da Peyrot (1931): Pl.2 fig. 11 Langhiano Salies de Bern – France |
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Varioconus taurinensis (3)
Lautoconus
kovacsi (1) |
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Conus (Lautoconus) kovacsi mm. 26,5 x 15,0 Miocene – Badeniano Band village,
Ungheria [AZFC N. 515-01] |
Conus (Lautoconus) kovacsi mm.
25,1 x 15,2 Miocene – Badeniano Band village,
Ungheria [AZFC N. 515-02] |
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Conus (Lautoconus) kovacsi mm. 16,1 x 5,6 Miocene – Badeniano Band village,
Ungheria [AZFC N. 515-03] |
Conus (Lautoconus) kovacsi mm.
15,6 x 8,4 Miocene – Badeniano Band village,
Ungheria [AZFC N. 515-04] |
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Conus (Lautoconus) kovacsi mm. 20,2 x 12,1 Miocene – Badeniano Letkes, Ungheria [AZFC
N. 515-05] |
Conus
(Lautoconus) kovacsi mm.
19,6 x 11,9 Miocene – Badeniano Letkes, Ungheria [AZFC
N. 515-06] |
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Conus (Lautoconus) kovacsi mm. 19,6 x 11,1 Miocene – Badeniano Letkes, Ungheria [AZFC
N. 515-07] |
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Conus (Lautoconus) kovacsi mm. 26,5 x 15,0 Miocene – Badeniano Band village,
Ungheria [AZFC
N. 515-01]
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Conus (Lautoconus) kovacsi mm.
25,1 x 15,2 Miocene – Badeniano Band village,
Ungheria [AZFC
N. 515-02]
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Conus kovacsi mm. 20,2 x 12,1 Miocene – Badeniano Letkes, Ungheria [AZFC
N. 515-05] |
Conus kovacsi (1)
Paratype NHMW 2016/0003/0002 mm. 20,1 x 12,1
Letkes |
Conus kovacsi (1)
Holotype NHMW 2016/0003/0001 mm. 19,8 x 11,4 Letkes |
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Conus (Lautoconus) kovacsi mm. 19,6 x 11,1 Miocene – Badeniano Letkes, Ungheria [AZFC
N. 515-07] |
Conus
kovacsi mm.
19,6 x 11,9 Miocene – Badeniano Letkes, Ungheria [AZFC
N. 515-06] |
Conus kovacsi (1)
Paratype NHMW 2016/0003/0003 mm. 18,8 x 11,8 Letkes |
Conus (Lautoconus) kovacsi mm. 16,1 x 5,6 Miocene – Badeniano Band village,
Ungheria [AZFC N. 515-03] |
Conus (Lautoconus) kovacsi mm.
15,6 x 8,4 Miocene – Badeniano Band village,
Ungheria [AZFC N. 515-04] |
Bibliografia Consultata