Kalloconus
letkesensis (Harzhauser & Landau, 2016)
Descrizione e caratteristiche:
This species could
be easily mistaken for Kalloconus berghausi (Michelotti, 1847) or Kalloconus
hendricksi nov. sp. from which it differs in the constantly striate spire
whorls, the faintly ventricose last whorl and especially in the conspicuous
spiral colour pattern, which differs completely from the large dots and
blotches of K. berghausi and K. hendricksi. Therefore, some
specimens in the Paratethyan literature might rather represent Kalloconus
letkesensis than K. berghausi (e.g. Kojumdgieva in Kojumdgieva &
Strachimirov 1960, pl. 51, fig. 3) (1).
Another
morphologically similar species is Kalloconus neumayri (Hoernes &
Auinger, 1879), which is distinguished easily by its colour pattern consisting
of large rectangular blotches (1).
This species was mixed by Kovacs &
Vician (2013) with Kalloconus tietzei (Hoernes & Auinger, 1879). It
differs from K. tietzei in its smaller size, more slender outline,
striate spire whorls, shallower subsutural flexure, broader last spire whorl,
much weaker siphonal fasciole and the dense spirals of dashes, whereas K.
tietzei shows much coarser and wider-spaced dashes (1).
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E1–E3. Kalloconus
letkesensis nov. sp., Letkés (Hungary), NHMW 2016/0006/0001, holotype (1) F1–F4. Kalloconus
letkesensis nov. sp., Letkés (Hungary), NHMW 2016/0006/0002, paratype (1) G1–G4. Kalloconus
letkesensis nov. sp., Letkés (Hungary), private collection Anton
Breitenberger (1) H1–H3. Kalloconus
letkesensis nov. sp., Letkés (Hungary), private collection Anton
Breitenberger (1) |
Distribuzione:
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Kalloconus letkesensis (Harzhauser & Landau, 2016) mm.
35,8 x 24,7 Miocene – Badeniano Band village,
Ungheria [AZFC N. 514-01] |
Kalloconus letkesensis (Harzhauser & Landau, 2016) mm.
42,4 x 30,4 Miocene – Badeniano Letkes, Ungheria [AZFC N. 514-02] |
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Kalloconus letkesensis (Harzhauser & Landau, 2016) mm.
34,3 x 24,9 Miocene – Badeniano Letkes, Ungheria [AZFC N. 514-03] |
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Kalloconus letkesensis (Harzhauser & Landau, 2016) mm.
24,8 x 17,0 Miocene – Badeniano Letkes, Ungheria [AZFC N. 514-04] |
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Kalloconus
letkesensis mm.
42,4 x 30,4 Miocene – Badeniano Letkes, Ungheria [AZFC N. 514-02] |
Kalloconus
letkesensis mm. 40,9 x
23,3 Letkés
(Hungary) private
collection Anton
Breitenberger (1) |
Kalloconus
letkesensis mm. 35,5 x
23,2 Letkés
(Hungary) private
collection Anton
Breitenberger (1) |
Kalloconus letkesensis mm.
35,8 x 24,7 Miocene – Badeniano Band village,
Ungheria [AZFC N. 514-01] |
Kalloconus letkesensis mm. 34,3 x 24,9 Miocene – Badeniano Letkes, Ungheria [AZFC N. 514-03] |
Kalloconus
letkesensis mm. 30,1 x
21,0 Letkés (Hungary) NHMW
2016/0006/0002 paratype (1) |
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Kalloconus letkesensis mm. 29,5 x 20,6 Letkés (Hungary), NHMW
2016/0006/0001, holotype (1) |
Kalloconus
letkesensis mm.
24,8 x 17,0 Miocene – Badeniano Letkes, Ungheria [AZFC N. 514-04] |
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Bibliografia Consultata
· (1) - Harzhauser, Mathias & Landau, Bernard, 2016, A revision of the Neogene Conidae and Conorbidae (Gastropoda) of the Paratethys Sea, Zootaxa 4210 (1), pp. 1-178: 106-108 Kalloconus ungaricus