Conus steinabrunnensis

Conus (Chelyconus) steinabrunnensis (Sacco, 1893)

Kalloconus ponderoaustriacus (Sacco, 1893)

Descrizione e caratteristiche:

Rispetto al Conus fuscocingulatus la spalla è più angolata. Rispetto al Conus vindobonensis la spira è più bassa.

Distribuzione:

E’ segnalato in ⁽¹⁾:

Revised description ⁽³⁾. Medium-sized shells with medium-low conical to slightly coeloconoid spire; spire whorls flat, weakly striate, slowly increasing in width. Last spire whorl often smooth; suture channelled. Subsutural flexure shallow, moderately curved, moderately asymmetrical. Last whorl elongate conical, not constricted, usually distinctly angulated, with weak convexity below shoulder, coinciding with position of maximum diameter. Weak spiral grooves may be present on lower third of last whorl. Siphonal canal moderately long, straight or weakly recurved. Aperture moderately narrow, anteriorly widening; siphonal fasciole indistinct, weakly swollen, twisted, well demarcated from narrow inner lip. Colour pattern under UV light consists of large and irregular blotches on the last whorl and flammulae on spire whorls.


Conus steinabrunnensis ⁽²⁾	Conus steinabrunnensis ⁽³⁾ Figs 21 C1-C3 Holotype NHMW 1855/0045/0005 mm. 54,6 x 30,2 Steinebrunn (Austria)	Conus steinabrunnensis ⁽³⁾ Figs 21B1–B3 NHMW 1865/0001/0764, mm. 48,8 x 26,4 Grinzing (Austria) specimen illustrated in Hoernes & Auinger (1879, pl. 5, fig. 5) (= holotype of Conus grinzingensis Sacco,1893)

	Conus steinabrunnensis ⁽³⁾ Figs21D1–D3 NHMW 1854/0035/0037 mm. 54,2 x 28,3 Lăpugiu de Sus (Romania)

Confronto con C. fuscocingulatus e C. vindobonensis

Conus fuscocingulatus ⁽²⁾

Conus steinabrunnensis ⁽³⁾

Figs 21 D1–D3

NHMW 1854/0035/0037

mm. 54,2 x 28,3

Lăpugiu de Sus (Romania)

Conus vindobonensis

[AZFC N. 335-01]


Conus steinabrunnensis ⁽³⁾ Figs 21 C1-C3 Holotype NHMW 1855/0045/0005 mm. 54,6 x 30,2 Steinebrunn (Austria)	Conus steinabrunnensis ⁽³⁾ Figs 21 D1–D3 NHMW 1854/0035/0037 mm. 54,2 x 28,3 Lăpugiu de Sus (Romania)

Kalloconus ponderoaustriacus (Sacco, 1893)

Questa specie si differenzia dal Lautoconus steinabrunnensis per la spalla arrotondata, le spire convesse della spira, la spira più bassa e la posizione più alta del diametro massimo. La sua apertura è più stretta soprattutto nella parte posteriore ⁽³⁾. Viveva in ambienti marini poco profondi; almeno a Gainfarn, la specie era associata alle alghe ⁽³⁾.

Revised description ⁽³⁾. Medium-sized shells with low conical to broad coeloconoid spire; early spire whorls nearly flat, later whorls weakly convex with last spire whorl often slightly more convex; spire whorls smooth; suture channelled. Subsutural flexure shallow, weakly curved, moderately asymmetrical. Spire passing via a rounded shoulder into conical to weakly ventricose last whorl; position of maximum diameter close below shoulder. Last whorl faintly constricted; prominent to weak spiral grooves may appear on lower third; siphonal canal short; siphonal fasciole weak and indistinct. Aperture moderately narrow, posteriorly narrowing and only weakly broadening anteriorly. Colour pattern poorly preserved, but seems to consist of densely spaced continuous spirals (v. AZFC 518-01).


Conus ponderoaustriacus Holotype NHMW 1854/0035/0041 Figs 11 G1–G3 mm. 50,4 x 27,1 Lăpugiu de Sus (Romania)	Conus ponderoaustriacus NHMW 1855/0045/0358 Figs 11 H1–H3 mm. 49,6 x 27,5 Gainfarn (Austria)	Conus ponderoaustriacus mm. 37,8 x 21,0 Miocene (Badeniano) Letkes –Ungheria [AZFC 518-02]	Conus ponderoaustriacus mm. 24,9 x 13,3 Miocene (Badeniano) Letkes –Ungheria [AZFC 518-01]