Integrative taxonomic revision of the land snail genus Sarika Godwin-Austen, 1907 in Thailand, with descriptions of nine new species (Eupulmonata, Ariophantidae) Author Pholyotha, Arthit Biological Sciences Program, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand & Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand https://orcid.org/0000-0001-6677-1164 Author Sutcharit, Chirasak Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand jirasak4@yahoo.com Author Tongkerd, Piyoros Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Author Panha, Somsak Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand text ZooKeys 2020 976 1 100 http://dx.doi.org/10.3897/zookeys.976.53859 journal article http://dx.doi.org/10.3897/zookeys.976.53859 1313-2970-976-1 B755A1D5D42D4CA589BE10C11EAB4580 1C1677B3CFE65ECEADF5CA56DACD0B9C Sarika benoiti (Crosse & Fischer, 1863) Fig. 50F Zonites benoiti Crosse & Fischer, 1863: 346, pl. 14, fig. 4. Type locality: "in loco Fuyen-Moth dicto, Cochinchine" [Phu Yen Province, Vietnam]. Helix benoiti : Pfeiffer 1868 : 99; Morelet 1875 : 248. Nanina (Macrochlamys) benoiti : Tryon 1886: 90, pl. 30, fig. 57, 58. Ariophanta ( Macrochlamys ?) benoiti : Fischer 1891 : 20. Macrochlamys benoiti : Ancey 1898 : 128, pl. 9, Fig. b; Saurin 1953 : 113; Schileyko 2011 : 30, 31. Sarika benoiti : Inkhavilay et al. 2019 : 81, fig. 38c; Pholyotha et al. 2020a : 7. Type material. No type material could be located in the MNHN collections. The illustration from the original description is reproduced here (Fig. 50F ). Diagnosis. Shell depressed, medium size (shell width up to 16.0 mm, shell height up to 9.0 mm), and thin. Shell surface smooth and shining; shell colour brownish. Whorls 6, increasing regularly; body whorl well rounded. Spire elevated; suture impressed. Aperture crescent-shaped and obliquely opened. Peristome simple. Columellar margin simple. Umbilicus narrowly opened (Fig. 50F ). Remarks. This species was described based on a specimen from south-central Vietnam ( Crosse and Fischer 1863 ). Up to now, Sarika benoiti has been recorded throughout the Indochina countries ( Ancey 1898 , Fischer and Dautzenberg 1904 , Saurin 1953 , Schileyko 2011 , Inkhavilay et al. 2019 ). However, these records remain equivocal and tentative because of unavailable distinguished genital data. In Thailand, Sarika benoiti was recorded from eastern Thailand based on specimens from the Pavie collection ( Fischer and Dautzenberg 1904 ). In this study, the specimens from the eastern part of Thailand agreed well with the syntype of S. bocourti (Fig. 34A ) where its type locality is in Battambang, Cambodia. Based on shell morphology, S. benoiti (Fig. 50F ) differs slightly from S. bocourti in having a smaller sized and well-rounded body whorl, whereas S. bocourti has a larger sized shell (shell width up to 33 mm) and obtusely angulated body whorl.