rissoanum, Microstoma Sarato [C.] 1887:[1] [Moniteur des Étrangers à Nice No. 265; ref. 18654] No types known. On p. 3 of reprint. •Synonym of Nansenia oblita (Facciolà 1887) -- (Cohen 1973:154 [ref. 6589], Cohen 1990:237 [ref. 14206]). Current status: Synonym of Nansenia oblita (Facciolà 1887). Microstomatidae. Habitat: marine.