Gyliotrachela

Trumpet snail Gyliotrachela australis, photographed by Robertwhyteus.

Belongs within: Pupilloidea.

Gyliotrachela is a genus of minute land snails found between southeast Asia and northern Australia. They are characterised by having the final whorl of the shell separating from the spire and flaring to a trumpet-like aperture.

Characters (from Stanisic et al. 2010): Shell tiny, conic-trochoidal, prominent peripheral angle and subperipheral sulcus; spiral threads on whorls; aperture ovate, trumpet-like and flared, detached from shell and deflected upward with a varying number of parietal and palatal teeth; umbilicus open. Colour dark brown.

<==Gyliotrachela Tomlin 1930 SS10 [incl. Gyliauchen Pilsbry 1917 non Nicoll 1915 S88, Gyliotrachea Pilsbry 1931 S88]
    |--*G. hungerfordiana (Möllendorff 1891) [=Hypselostoma hungerfordiana] SS10
    |--G. australis (Odhner 1917) [incl. G. ningbingia Solem 1981] SS10
    |--G. bensoniana Blanford 1863 S88
    |--G. catherina Solem 1981 S88
    |--G. concreta van Benthem Jutting 1949 S88
    |--G. depressispira van benthem Jutting 1949 S88
    |--G. dohertyi Fulton 1899 S88
    |--G. everettei Smith 1896 S88
    |    |--G. e. everetti S88
    |    `--G. e. mixta Rensch 1932 S88
    |--G. fruhstorferi Moellendorff 1897 S88
    |--G. napierana Solem 1981 S88
    `--G. torticollis van Benthem Jutting 1962 S88

*Type species of generic name indicated

REFERENCES

Pilsbry, H. A. 1916-1918. Manual of Conchology vol. 24. Pupillidae (Gastrocoptinae). Conchological Department, Academy of Natural Sciences of Philadelphia.

[S88] Solem, A. 1988. Non-camaenid land snails of the Kimberley and Northern Territory, Australia. I. Systematics, affinities and ranges. Invertebrate Taxonomy 4: 455–604.

[SS10] Stanisic, J., M. Shea, D. Potter & O. Griffiths. 2010. Australian Land Snails vol. 1. A. field guide to eastern Australian species. Bioculture Press: Mauritius.

Last updated: 18 January 2020.