The oval shell has a heliciform shape, but is often oblique. It is profoundly umbilicated, ridged, striate above, smooth and usually polished below. The last
whorls are usually deviating more or less from the original axis. The
aperture is lunar, with or without teeth. The outer
lip slightly thickened and reflected.
The animal has a very long neck and short tail. The superior tentacles are narrow and long. The labial palpi are narrow, as long as the inferior tentacles. The genital orifice is on the right side, distant from the superior tentacle, and closer to the respiratory orifice. The
radula is similar to that of
Glandina; the central tooth is simple.[4]
Distribution
The distribution of the genus Streptaxis includes:
Streptaxis enneoides E. von Martens, 1878: synonym of Tayloria (Macrogonaxis) enneoides (E. von Martens, 1878) represented as Tayloria enneoides (E. von Martens, 1878) (original combination)
Streptaxis souleyetiana (Petit de la Saussaye, 1841): synonym of Gonaxis souleyetianus (Petit de la Saussaye, 1841) accepted as Seychellaxis souleyetianus (Petit de la Saussaye, 1841)
^
abcdSutcharit C., Naggs F., Wade C. M., Fontanilla I. & Panha S. (2010). "The new family Diapheridae, a new species of Diaphera Albers from Thailand, and the position of the Diapheridae within a molecular phylogeny of the Streptaxoidea (Pulmonata: Stylommatophora)". Zoological Journal of the Linnean Society160: 1–16.
doi:
10.1111/j.1096-3642.2009.00598.x.
^
abcdefghijklm(in Portuguese) Salgado N. C. & Coelho A. C. S. (2003). "Moluscos terrestres do Brasil (Gastrópodes operculados ou não, exclusive Veronicellidae, Milacidae e Limacidae)". Rev. Biol. Trop.51(Suppl. 3): 149–189. (with English abstract),
PDFArchived 4 October 2011 at the
Wayback Machine.
The oval shell has a heliciform shape, but is often oblique. It is profoundly umbilicated, ridged, striate above, smooth and usually polished below. The last
whorls are usually deviating more or less from the original axis. The
aperture is lunar, with or without teeth. The outer
lip slightly thickened and reflected.
The animal has a very long neck and short tail. The superior tentacles are narrow and long. The labial palpi are narrow, as long as the inferior tentacles. The genital orifice is on the right side, distant from the superior tentacle, and closer to the respiratory orifice. The
radula is similar to that of
Glandina; the central tooth is simple.[4]
Distribution
The distribution of the genus Streptaxis includes:
Streptaxis enneoides E. von Martens, 1878: synonym of Tayloria (Macrogonaxis) enneoides (E. von Martens, 1878) represented as Tayloria enneoides (E. von Martens, 1878) (original combination)
Streptaxis souleyetiana (Petit de la Saussaye, 1841): synonym of Gonaxis souleyetianus (Petit de la Saussaye, 1841) accepted as Seychellaxis souleyetianus (Petit de la Saussaye, 1841)
^
abcdSutcharit C., Naggs F., Wade C. M., Fontanilla I. & Panha S. (2010). "The new family Diapheridae, a new species of Diaphera Albers from Thailand, and the position of the Diapheridae within a molecular phylogeny of the Streptaxoidea (Pulmonata: Stylommatophora)". Zoological Journal of the Linnean Society160: 1–16.
doi:
10.1111/j.1096-3642.2009.00598.x.
^
abcdefghijklm(in Portuguese) Salgado N. C. & Coelho A. C. S. (2003). "Moluscos terrestres do Brasil (Gastrópodes operculados ou não, exclusive Veronicellidae, Milacidae e Limacidae)". Rev. Biol. Trop.51(Suppl. 3): 149–189. (with English abstract),
PDFArchived 4 October 2011 at the
Wayback Machine.