Radulae of Alycaeidae A Alycaeus eydouxi Venmans, 1956 NHMUK 20160702 B Alycaeus gibbosulus Stoliczka, 1872, HNHM 104857 C Dioryx messageri (Bavay & Dautzenberg, 1900) NHMUK 2014.02.81 D Chamalycaeus sp., HNHM 104858 E Chamalycaeus everetti (Godwin-Austen, 1889), HNHM 104859 F Dicharax itonis (Kuroda, 1943) HNHM 104860 G Dicharax okinawaensis (Uozumi, Yamamoto & Habe, 1979), HNHM 104431 H Stomacosmethis balingensis (Tomlin, 1948) HNHM 104861 I Stomacosmethis perakensis (Crosse, 1879) HNHM 104430. Scale bars: 50 μm. All images: Barna Páll-Gergely.