Taxonomic revision of the land snail generaMacrochlamysGray, 1847 andSarikaGodwin-Austen, 1907 (Eupulmonata: Ariophantidae)from south-eastern Myanmar, with descriptions of three new species

Integrative taxonomic revision of the land snail genus Sarika Godwin-Austen, 1907 in Thailand, with descriptions of nine new species (Eupulmonata, Ariophantidae)

“…Living specimens were photographed, euthanised by two-step methods ( American Veterinary Medical Association 2020 ), and then fixed in 95% (v/v) ethanol for morphological and DNA studies. Species identification followed the original descriptions by Godwin-Austen 1907 , Blanford and Godwin-Austen (1908) and Pholyotha et al (2020c) , and were then compared to the relevant type specimens. To study anatomy, 3–10 specimens of each species were dissected and examined under a stereomicroscope.…”

“… Sarika is a land snail genus in the family Ariophantidae Godwin-Austen 1883 and is widely distributed in mainland Southeast Asia, especially throughout Thailand ( Blanford and Godwin-Austen 1908 ; Zilch 1959 ; Solem 1966 ; Schileyko 2002 ; Inkhavilay et al 2019 ; Pholyotha et al 2020a , 2020c ). Systematic studies of Sarika date back from the mid-19 th to the early 20 th centuries ( Pfeiffer 1860 ; Möllendorff 1894 , 1902 ; Godwin-Austen 1907 ; Blanford and Godwin-Austen 1908 ; Tomlin 1929 ; Laidlaw 1933 ; Solem 1966 ).…”

“…Nine years later, Godwin-Austen 1907 nominated Sarika as a distinct genus from the genus Macrochlamys Gray, 1847, and designated H. resplendens Philippi 1846 as the type species of Sarika , emphasizing that Sarika and Macrochlamys have a very similar shell form (depressed shape, closely coiled whorl, polished, thin, and semi-transparent) and general soft anatomy (short to long flagellum, long spermatheca and large dart apparatus). However, the genitalia of Sarika possess a straight (or un-coiled) epiphallic caecum, while Macrochlamys has a spirally coiled epiphallic caecum ( Godwin-Austen 1907 ; Blanford and Godwin-Austen 1908 ; Schileyko 2002 , 2003 ; Pholyotha et al 2018 , 2020c ; Sajan et al 2019 ).…”

“…Subsequentially, many species have been placed in the genus Sarika ( Laidlaw 1933 ; Solem 1966 ; Panha 1996 ; Hemmen and Hemmen 2001 ; Pholyotha et al 2018 , 2020a , 2020c ; Inkhavilay et al 2019 ). Yet, most previous studies were either species descriptions or checklist, and in Thailand and Malaysia, only a few studies so far have dealt with the genital anatomy ( Godwin-Austen 1907 ; Laidlaw 1933 ; Solem 1966 ; Maneevong 2000 ; Sutcharit and Panha 2008 ).…”

“…In Laos, Inkhavilay et al (2019) published a checklist of the land snails, including several species of Sarika . A year later, the genus Sarika from Myanmar and Cambodia were taxonomically revised, and two new species from Myanmar and three new species from Cambodia were discovered based on genitalia characters ( Pholyotha et al 2020a , 2020c ; Sutcharit et al 2020 ). However, knowledge on the genus Sarika is still fragmentary because most of the nominal species are described from Thailand.…”