Helicarion

Helicarion cuvieri, copyright Nuytsia@Tas.

Belongs within: Helicarionoidea.

Helicarion is a genus of semi-clugs bearing a transparent shell with very fine, very crowded spiral striae (Stanisic et al. 2010).

Characters (from Stanisic et al. 2010): Shell relatively small to medium-sized, ear-shaped, flattened, thin, transparent; last whorl very large; sculpture of very fine, weak, very crowded spiral striae on both the protoconch and teleoconch; base of aperture with diaphanous border. Colour pale yellow-green. Animal colour varying from grey to black, fawn to cream and orange-brown; coloured foot-border and tail tip; mantle lappets only partly covering shell, slime network strongly defined, caudal gland prominent and pointed; visceral organs usually yellow, orange and brown.

Helicarion Férussac 1821SS10 [=Helixarion (l. c.)BR05; Helicarionini]
|--*H. (Helicarion) cuvieri Férussac 1821SS10
`--H. (Austenia)TC89
|--H. (A.) butleri (see below for synonymy)TC89
|--‘Austenia’ doisutepensisT84
|--H. (A.) feae Tapparone Canefri 1889TC89
|--H. (A.) peguensis Theobald 1864 [=Vitrina peguensis, Girasia peguensis]TC89
`--H. (A.) resplendens Nevill 1877TC89

Helicarion incertae sedis:
H. insularisPB27
H. kivuensisPB27
H. leopardina Iredale 1941SS10
H. magnificumTC89
H. mastersi (Cox 1868) [incl. H. mastersi callidus Iredale 1941]SS10
H. microgranulatusPB27
H. nigerPB27
H. ruwenzoriensisPB27
H. schubotziPB27
H. shillongensisTC89
H. sowerbyanusPB27
H. stuhlmanniPB27
H. subsucculentusPB27
H. virensBRW98

Helicarion (Austenia) butleri [=Girasia butleri, incl. Austenia gigas Godwin Austen 1880, Helicarion gigas var. minor Godwin Austen 1875]TC89

*Type species of generic name indicated

References

[BRW98] Beesley, P. L., G. J. B. Ross & A. Wells (eds) 1998. Fauna of Australia vol. 5. Mollusca: The Southern Synthesis. Part A. Australian Biological Resources Study: Canberra.

[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1–2): 1–397.

[PB27] Pilsbry, H. A., & J. Bequaert. 1927. The aquatic mollusks of the Belgian Congo, with a geographical and ecological account of Congo malacology. Bulletin of the American Museum of Natural History 53 (2): 69–602, pls 10–77.

[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.

[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.

[T84] Tillier, S. 1984. Patterns of digestive tract morphology in the limacisation of helicarionid, succineid and athoracophorid snails and slugs (Mollusca: Pulmonata). Malacologia 25 (1): 173–192.

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