1911
Nematotrypa gracilis, new species — Bassler, pp. 165, fig. text fig. 83
1952
Nematotrypa gracilis Bassler — Toots, pp. 130, fig. 10:6
1985
Nematotrypa gracilis Bassler, 1911 — Gorjunova, pp. 95, fig. XII 1,2
1992
Nematotrypa gracilis Bassler, 1911 — Gorjunova, pp. 16, fig. 7