A review of the Diapheridae (Gastropoda: Eupulmonata: Streptaxoidea), with special emphasis on India and Myanmar Author Páll-Gergely, Barna Author Hunyadi, András Author Grego, Jozef Author Sajan, Sheikh Author Tripathy, Basudev Author Chen, Zhe-Yu text Raffles Bulletin of Zoology 2020 2020-08-06 68 682 718 journal article 10.26107/RBZ-2020-0083 2345-7600 5349761 83A57E5F-10AB-46EF-A35C-29B2E747851A Parasinoennea Z.-Y. Chen & Páll-Gergely, new genus Type species. Ennea splendens Möllendorff, 1882 ( Fig. 9A–E ). Diagnosis. Shell ovate, glossy; aperture triangular, adnate to the penultimate whorl. Differential diagnosis. The shell shape of Parasinoennea , new genus , is oval, whereas it is usually elongated and cylindrical in Sinoennea . The teleoconch of Parasinoennea is usually smooth, sometimes ornamented by low, blunt ribs, but is always glossy. In contrast, the ribs of Sinoennea are usually sharp and elevated, and the shell has a less glossy appearance. The main difference is in the aperture shape, which is triangular (in some species the palato-basal part distorted laterally) in Parasinoennea , new genus , but elongated oval and cylindrical in Sinoennea . The aperture is adnate (i.e., the parietal callus is attached to the penultimate whorl) in Parasinoennea , new genus , and the parietal callus is always clearly separated from the penultimate whorl in Sinoennea . The apertural dentition is not clearly different, although Parasinoennea , new genus , often possesses two tubercles (denticles) on the columellar peristome (anterior to the columellar lamella), which has not been observed in any Sinoennea species to our knowledge. The upper denticle is probably homologous with the upper denticle of Pupennea , new genus , and Platylennea , new genus . Included species. Parasinoennea demangei ( Bavay & Dautzenberg, 1912 ) (northern Vietnam ), P. formica ( Bavay & Dautzenberg, 1912 ) (northern Vietnam ), P. splendens splendens ( Möllendorff, 1882 ) ( Guangdong , China ), P. splendens hongkongensis Möllendorff, 1885 ( Hongkong , China ), P. ovulum ( Bavay & Dautzenberg, 1912 ) (northern Vietnam ) ( Figs. 9F–N , 22H ). Etymology. The Greek prefix para- (παρά, meaning beside, next to, against, etc.) is attached to Sinoennea to show that it is separated from that genus. Grammatical gender: feminine. Distribution. South China ( Guangxi , Guangdong , Hong Kong , Jiangxi) and northern Vietnam ( Fig. 10 ). Remarks. Sinoennea longtanensis S. Ouyang, X. -M. Liu & X.-P. Wu, 2012 does not differ from typical P. splendens (examined material: SMF 42775, lectotype , see Fig. 9A–E ) in any traits. Therefore, we considered it a synonym of the latter.