Acavoidea (Gudeodiscus), Pall-Gergely, 2013

Pall-Gergely, Barna, Hunyadi, Andras, Ablett, Jonathan, Lương, Hao Văn, Fred Naggs, & Asami, Takahiro, 2015, Systematics of the family Plectopylidae in Vietnam with additional information on Chinese taxa (Gastropoda, Pulmonata, Stylommatophora), ZooKeys 473, pp. 1-118 : 9-10

Taxon classification Animalia Stylommatophora Plectopylidae

Subgenus Gudeodiscus Pall-Gergely, 2013

Diagnosis.

Shell indistinguishable from Gudeodiscus (Veludiscus) subgen. n. Anatomy: The epiphallus has a somewhat thickened proximal part; retractor muscle simple, inserts on the distal end of the penial caecum, or if it is missing, than on the distal end of the penis (at the penis-epiphallus transition). Radula: central tooth usually as large as or slightly larger than the ectocone of the first lateral; mesocone of the first lateral is moderately wide, in most cases has parallel edges. Marginals usually tricuspid with rather pointed inner cusp and rather deep incision between the inner two cusps.

Included taxa.

anceyi (Gude, 1901)(?), concavus Páll-Gergely, 2013(?), cyrtochilus (Gude, 1909)(?), dautzenbergi (Gude, 1901), fischeri (Gude, 1901), francoisi (Fischer, 1899)(?), giardi (Fischer, 1898), hemmeni Páll-Gergely & Hunyadi, sp. n.(?), infralevis (Gude, 1908)(?), marmoreus Páll-Gergely, 2014(?), messageri (Gude, 1909), multispira ( Möllendorff, 1883), phlyarius (Mabille, 1887), soosi Páll-Gergely, 2013(?), suprafilaris (Gude, 1908)(?), ursula Páll-Gergely & Hunyadi, 2013(?), villedaryi (Ancey, 1888), yanghaoi Páll-Gergely & Hunyadi, 2013(?), yunnanensis Páll-Gergely, 2013(?).

Remarks.

All known Gudeodiscus species remain in this subgenus with the exception of Gudeodiscus goliath Páll-Gergely & Hunyadi, 2013 because of its similar shell and distribution area to Gudeodiscus pulvinaris robustus Páll-Gergely & Hunyadi, 2013 and Gudeodiscus emigrans otanii Páll-Gergely & Hunyadi, 2013. Those with unknown anatomy and radula morphology have questionable subgeneric assessment. The shell of Gudeodiscus dautzenbergi is very similar to the nearby occurring Gudeodiscus villedaryi , therefore we think there is no need to question the subgeneric status.