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 * Turdus terrestris Kittlitz, Mém. Acad. Sc. Pétersburg I p. 245, pl. 17 (1830—Boninsima).


 * Geocichla terrestris Bonaparte, Consp. Av. I, p. 268 (1850); Seebohm, Cat. B. Brit. Mus. V, p. 183 (1881); Hartert, Kat. Vogels. Senckenb, p. 6 (1891); Sharpe, Monograph Turdidae, I p. 107, pl. 33 (1902).


 * Cichlopasser terrestris Bonaparte, C.R. XXXVIII, p. 6 (1854).

HE following is Dr. Sharpe's description from a specimen in the Leyden Museum: "General colour of the upper parts olive-brown, shading into chestnut-brown on the rump, upper tail-coverts, and tail; the inside web of each feather much darker, approaching black on the back; lores dark brown; eye-stripe very obscure; lesser wing-coverts brown, darkest on the inside web; median coverts dark brown, with large olive-brown tips; greater coverts nearly black, broadly tipped, and narrowly margined towards the base with olive-brown; primary coverts black, with a broad olive-brown patch on the outer webs; tertials dark brown on the inner web, and olive-brown on the outer web; secondaries brown, margined with olive-brown on the outer webs; primaries brown, with the basal half of the outer webs, and a spot where the emargination begins, olive-brown; tail-feathers chestnut-brown; ear-coverts brown; underparts olive-brown, shading into white on the chin, throat, and centre of belly; under tail-coverts dark brown, with irregular diamond-shaped white tips; axillaries brown; under wing-coverts brown. Geocichline markings on inner webs of quills dirty white. Wing 3.8 inches, tail 2.6, culmen 0.85, tarsus 1.07, bastard primary 0.8."

The only person who ever collected this short-tailed Ground-Thrush was Kittlitz, who obtained four specimens, one of which is in St. Petersburg, one in Frankfurt, one in Vienna, and one in Leyden. Neither Holst, nor Alan Owston's Japanese collectors obtained specimens, though their special attention was called to it. Therefore, unless these recent collectors left unvisited the most important island of the group, we must suppose that it became extinct.

Habitat: Bonin Islands, south-east of Japan.