(syn. Stachyris Ϯ Chevron-breasted Babbler S. roberti) Gr. σφην sphēn, σφηνος sphēnos wedge; κιχλη kikhlē thrush; "SPHENOCICHLA, n.g.* Bill longer than the head, conical, straight, and acute. Culmen, from region of the nostrils to the forehead, much compressed; from nostril to apex swollen and flattened. Nostrils protected by a scale-like cover and shaded by dense nareal tufts. Commissure almost straight. Lower mandible flat-sided; gonys broad, more flat than rounded, but slightly curved. ... *This may be the same genus as that named Heterorhynchus by Mandelli; but if so, that title cannot stand, having been previously employed by Lafresnaye. ... SPHENOCICHLA ROBERTI. ... This anomalous form has the structure of a Turdinus and the bill of a Stachyris" (Godwin-Austen & Walden 1875); "Sphenocichla Godwin-Austen and Walden, 1875, Ibis, p. 250. Type, by monotypy, Sphenocichla roberti Godwin-Austen and Walden." (Deignan in Peters 1964, X, 299).