polycatodon, Dysomma Karrer [C.] 1983:89, Figs. 27 A-B [Faune Tropicale v. 23 (for 1982); ref. 5679] Northwestern Madagascar, 15°21'S, 46°11'E, depth 170-175 meters. Holotype (unique): MNHN 1979-0003. Type catalog: Bauchot et al. 1993:103 [ref. 20810]. •Valid as Dysomma polycatodon Karrer 1983 -- (Robins & Robins 1989:250 [ref. 13287], Chen & Mok 1999:60 [ref. 24093], Smith 1999:1661 [ref. 24661], Chen & Mok 2001:79 [ref. 25465], Ho et al. 2015:99 [ref. 34124], Ho et al. 2015:178 [ref. 34130], Fricke et al. 2018:6 [ref. 35780], Fricke et al. 2018:41 [ref. 35805], Ho & Tighe 2018:53 [ref. 36037], Prokofiev 2019:321 [ref. 36804], Ramos-Castro et al. 2021:525 [ref. 38842], Smith 2022:100 [ref. 39684], Vo et al. 2024:9 [ref. 40748]). Current status: Valid as Dysomma polycatodon Karrer 1983. Synaphobranchidae: Ilyophinae. Distribution: Indo-West Pacific: Madagascar; Philippines, Vietnam to Taiwan. Habitat: marine.