Streptaxidae

Streptostele musaecola, from D. G. Robinson et al.

Belongs within: Stylommatophora.

The Streptaxidae are a nearly pantropical family of carnivorous snails (though absent from the native fauna of Australia).

Characters (from Tillier 1989): Buccal mass very long. Gastric crop cylindrical; gastric pouch may be dedifferentiated; intestine short. Kidney very short, internally homogeneous in morphology. Ureteric tube closed as far as pneumostome. Cerebral commissure short. Cerebropedal connectives medium and subequal in length. Pleural ganglia close to pedal ganglia. Visceral ganglion median, in contact with both parietal ganglia, from which it is, however, distinct. Pleuro-parietal connectives longer than in any other family of Stylommatophora.

<==Streptaxidae [Streptaxacea, Streptaxoidea]
    |  i. s.: Gulella V07
    |           |--G. (Huttonella) bicolor (Hutton 1834) [=Pupa bicolor] S88
    |           |--G. meruensis (D’Ailly 1910) V07
    |           `--G. (Paucidentina) monodon (Morelet 1873) FGN07
    |         Natalina caffra (Férussac 1821) V07
    |         Edentulina FGN07
    |         Varicostele FGN07
    |--Odontartemon Pfeiffer 1856 [Odontartemoninae] BR05
    |--Orthogibbinae [Orthogibbidae] BR05
    |    |--Orthogibbus Germain 1919 BR05
    |    |--Gibbus Montfort 1810 [Gibbinae] BR05
    |    `--Gonidomus Swainson 1840 [Gonidominae] BR05
    |--Streptaxinae BR05
    |    |--Artemon Beck 1837 [Artemonidae] BR05
    |    `--Streptaxis Gray 1837 BR05
    |         |--S. hanleyanus TC89
    |         |--S. obtusus TC89
    |         `--S. sankeyanus TC89
    |--Gonaxis V07 [Marconiinae BR05]
    |    |  i. s.: G. craveni (Smith 1880) V07
    |    |         G. kibweziensis H91
    |    |         G. quadrilateralis H91
    |    `--G. (Marconia Bourguignat 1889) V07, BR05
    |         |--G. (M.) gravieri (Germain 1907) V07
    |         |--G. (M.) kivuensis (Preston 1913) V07
    |         `--G. (M.) vitrea (Morelet 1868) [=Ennea vitrea] V07
    `--Ptychotrematinae [Enneidae, Enneinae] BR05
         |--Streptostele Dohrn 1866 [Streptostelidae] BR05
         |    `--S. (Tomostele) musaecola (Morelet 1860) [=Achatina musaecola] S88
         `--Ptychotrema Pfeiffer 1853 BR05
              |--‘Ennea’ (Elma Adams 1866) A66
              |    `--E. (*E.) swinhoei Adams 1866 A66
              `--P. (Ennea Adams & Adams 1855) V07
                   |--P. (E.) bequaerti (Dautzenberg & Germain 1914) V07
                   |--P. (E.) chrysacticum Verdcourt 2007 V07
                   |--P. (E.) elegantulum (Pfeiffer 1846) V07
                   |--P. (E.) peilei Preston 1914 V07
                   |--P. (E.) subtusangulatum (Degner 1934) V07
                   |--P. (E.) sylvatica Pilsbry 1919 FGN07
                   `--P. (E.) thompsonae Connolly 1928 V07

*Type species of generic name indicated

REFERENCES

[A66] Adams, H. 1866. Descriptions of fifteen new species of land and freshwater shells from Formosa, collected by Robert Swinhoe, Esq., consul at Taiwan in that island. Proceedings of the Zoological Society of London 1866: 316-319.

[BR05] Bouchet, P., J.-P. Rocroi, J. Frýda, B. Hausdorf, W. Ponder, Á. Valdés & A. Warén. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1-2): 1-397.

[FGN07] Fontaine, B., O. Gargominy & E. Neubert. 2007. Land snail diversity of the savanna/forest mosaic in Lopé National Park, Gabon. Malacologia 49 (2): 313-338.

[H91] Howarth, F. G. 1991. Environmental impacts of classical biological control. Annual Review of Entomology 36: 485-509.

[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.

[TC89] Tapparone Canefri, T. 1889. Viaggio di Leonardo Fea in Birmania e regioni vicine. XVIII. – Molluschi terrestri e d'acqua dolce. Annali del Museo Civico di Storia Naturale di Genova, Serie 2a 7: 295-359.

Tillier, S. 1989. Comparative morphology, phylogeny and classification of land snails and slugs (Gastropoda: Pulmonata: Stylommatophora). Malacologia 30 (1-2): 1-303.

[V07] Verdcourt, B. 2007. Miscellaneous notes on tropical African non-marine Mollusca. Annales Historico-Naturales Musei Nationalis Hungarici 99: 189-197.