Mori (1928_a_:16) first mentioned in Japanese text the alleged distinctiveness of the salamander occurring on Cheju Do. Later, Mori (1928_b_:47 in Japanese, and 1928_c_:53 in English) provided valid descriptions of the subspecies, _Hynobius leechii quelpaertensis_. Okada (1934:17) questioned the validity of _H. l. quelpaertensis_ and Sato (1943) regarded the salamanders of Cheju Do as inseparable from the Korean _H. leechii_. The English description of _quelpaertensis_ is briefer than the preceding one in Japanese and lacks comparisons with related forms. KU 38775-76 seemingly differ appreciably from the description of _quelpaertensis_ only in having the series of vomerine teeth narrowly V-shaped and longer than broad. We tentatively follow Sato in regarding _quelpaertensis_ as a synonym of _leechii_. =Bombina orientalis= (Boulenger) _Bombinator orientalis_ Boulenger, Ann. Mag. Nat. Hist., ser. 6, 5:143, pl. IX, fig. 2, February, 1890 (type locality restricted to Chefoo, China, by Pope, Bull. Amer. Mus. Nat. Hist., 61:435, August 29, 1931). _Bombina orientalis_, Stejneger, Bull. U. S. Nat. Mus., 58:51, figs. 30-43, pl. VII (reproduction from Boulenger, _supra_), July 22, 1907. _Specimens examined_ (87).--2 mi. N Chip´o-ri, 8 (KU), 5 (UMMZ); 1 mi. SW Inje, 1 (KU); 15 mi. NE Mosulp´o, Cheju Do, 6 (KU); Sangdaehwa, 2 (KU); Taehoesan-ni, 1 (KU); 1 mi. W Tangjonggok, 32 (KU), 17 (UMMZ); Tangnim-ni, 2 (KU); 3 mi. SW Yanggu, 1 (KU); 2 mi. N Yongdae-ri, 8 (KU), 4 (UMMZ). _Remarks._--Most of our specimens were taken from breeding congresses after heavy rains in rice fields and other shallow temporary waters. Thirteen individuals from Chip´o-ri were collected from foxholes around the edge of a military compound (two pairs in amplexus; no egg masses seen), and represent a small sample of frogs that were everywhere following a heavy rain on the night of May 13-14. On April 23, 32 _Bombina orientalis_ and three _Rana temporaria dybowskii_ were trapped in the water-filled bottom of an unused grease pit near Tangjonggok. Many tadpoles and two kinds of egg masses (small clusters and beadlike strings) were present; the small clusters of _Bombina_ were commonest. On June 13 at the same locality, thousands of these toads were observed (hundreds in axillary amplexus) in foxholes, temporary rain pools, and backwashes along the Puk-ch´on [river]. On June 12 near Yongdae-ri many individuals were seen (several pairs in amplexus), along Route 24 paralleling the Puk-ch´on, in rain pools and in ditches and backwashes from the river; almost all available water contained small (approximately 10 × 10 mm.) egg masses. Numbers of eggs per mass, selected at random, were 5, 2, 2, 5, 2, 8, 8, 2 and 5. Some that were saved subsequently hatched on June 15-17.