Plectopylinae Möllendorff, 1898

Subfamily Plectopylinae Möllendorff, 1898 View in CoL

Type genus

Plectopylis Benson, 1860 View in CoL .

Included genera

Chersaecia Gude, 1899 View in CoL (synonym: Endoplon Gude, 1899 ), Hunyadiscus Páll-Gergely, 2016 View in CoL , Naggsia Páll-Gergely & Muratov, 2016 View in CoL , Plectopylis Benson, 1860 View in CoL .

Diagnosis

Shell usually sinistral, flat to depressed conical; umbilicus wide to moderately wide; protoconch with variable sculptural elements (finely granulated, spirally striated, irregularly wrinkled/ribbed); apertural fold usually present, main plica usually present. Penis well-developed or reduced; penial caecum absent or small, epiphallus present or absent; diverticulum usually present, shorter than bursa copulatrix.

Distribution

Southeastern Himalaya ( Nagaland and Manipur in northeastern India), Myanmar and the neighbouring Chinese border region ( Yunnan Province), Thailand (with the exception of the lowlands in the central and northeastern regions), northern Laos ( Fig. 3 View Fig ).