Systematic revision of the Plectopylinae (Gastropoda, Pulmonata, Plectopylidae) Author Páll-Gergely, Barna 31E196E9-5A51-4295-9A36-D5DA689502B7 Centre for Agricultural Research, Hungarian Academy of Sciences (MTA), Herman Ottó Street 15, Budapest, H- 1022, Hungary. pall-gergely.barna@agrar.mta.hu text European Journal of Taxonomy 2018 2018-08-16 455 1 114 journal article 22297 10.5852/ejt.2018.455 44a2fcf6-cc1b-4c07-9554-dd6dd279a76d 3817707 C445E95B-446A-4601-AAA3-C1CCBAB627F9 Subfamily Sinicolinae subfam. nov. urn:lsid:zoobank.org:act: 7AA09CFF-D5FD-4DB1-98BE-9DB9E41F6B82 Type genus Sinicola Gude, 1899 . Included genera Gudeodiscus Páll-Gergely, 2013 (with the subgenus Veludiscus Páll-Gergely, 2015 ), Endothyrella , Halongella Páll-Gergely, 2015 , Sicradiscus Páll-Gergely, 2013 , Sinicola . The Eocene fossil genus Plectopyloides Yen, 1969 ( type species: P. cretaceous Yen, 1969 ; synonyms: Henanspirus Li, 1986 , Menyinspirus Li, 1986 , Yenellus Li, 1986 ) is also classified in this subfamily, because it is most similar to Gudeodiscus (see Páll-Gergely & Asami 2014 ). Diagnosis Shell usually dextral (although most species of Endothyrella are sinistral), flat to conical-globular; umbilicus wide to narrow; protoconch regularly ribbed without any additional sculptural elements (very rarely smooth, see Páll-Gergely et al. 2015 b , 2015 c); apertural fold present or absent; main plica usually absent (present only in Gudeodiscus longiplica Páll-Gergely & Asami, 2016 ). Penis well-developed; penial caecum well-developed to absent; epiphallus present; diverticulum as long as bursa copulatrix (absent in some species, although possibly overlooked during dissection). Distribution Same as in the family Plectopylidae , except Thailand and the Malay Peninsula ( Fig. 3 ). Remarks The subdivision of the family into two reciprocally monophyletic groups is supported by molecular phylogenetic analysis, which included nearly all genera. Discussion of the phylogenetic results is beyond the scope of the present revision, and will be discussed in a separate paper.