Microdarwinula zimmeri (Menzel, 1916)

(Figs 9 F–H)

1916 Darwinula zimmeri n. sp. —Menzel: 487–489, Figs 16, 17.

1952 Darwinula brevis n. sp. —Straub: 498, text-figs 21–22.

nov. comb. 1969 Microdarwinula zimmeri (Menz) —Danielopol: 154–163, figs 1–28.

Material examined. Seven females from a seep at the edge of a track in Hino-cho, Shiga Prefecture, N35º 00’ 02.1”, E136º 19’ 32.2”, 16 April 2008. One female from gravel in the riverbed of the Myo-odani River, Katsuragawabomura-cho, Otsu, Shiga Prefecture, N35º 14’ 38.3”, E135º 52’ 19.9”, 4 October 2007. All material collected by the author.

Remarks. Previous records of Microdarwinula zimmeri are widespread, but sparsely distributed in Europe, Western Africa, North America, the Caribbean, Madagascar, the Middle East and Indonesia (see the review in Rossetti and Martens 1998). Herein is the first report of this species from Japan.