Revision of the " (Benson, 1836)" group (Gastropoda, Stylommatophora, Camaenidae).

(Benson, 1836), known from northeastern India, was believed to have three varietal forms, sometimes mentioned as subspecies: C.delibratavar.khasiensis (Nevill, 1877) and C.delibratavar.fasciata (Godwin-Austen, 1875) from the Khasi Hills, India, and C.delibratavar.procumbens (Gould, 1844) from Dawei in Myanmar. The reproductive anatomy of the latter form is known and does not match with those of any continental camaenid genera, but does with that of the newly examined Möllendorff, 1894 from Thailand. The latter species is conchologically similar to Thach, 2018 (synonym of Morlet, 1886), which is the type species of the genus Thach, 2018. Thus, can provisionally host the entire Chloritisdelibrata -group with the exception of var. fasciata, which is transferred to Godwin-Austen, 1920 due to the multiple reddish bands on its shell. The examination of shells deposited in the Natural History Museum, London revealed that seven morphologically distinguishable forms are present, which are accepted here as representing distinct species. Four new species are described from India: Páll-Gergely , Páll-Gergely , Páll-Gergely , and Páll-Gergely