dorsolateral folds, (8) a dark brown, linear mark below canthus, and (9) an immaculate ventral surface. Two additional distinguishing characters, which we found difficult to evaluate, are the nearly straight, dorsolateral folds, and lack of vocal sacs or ostia in males of R. a. coreana (Shannon, 1956:38). Some of the differences between the two species were illustrated by Okada, 1931:107, fig. 48, R. temporaria temporaria [=R. t. dybowskii] and 123, fig. 54, R. temporaria coreana [=R. amurensis coreana].

Rana temporaria dybowskii Günther

Remarks.—On October 9 in the Central National Forest, five individuals were found in a concrete-walled pit in old ruins on a wooded hillside; no specimens of Rana amurensis coreana were taken there. R. t. dybowskii was most often taken on high, moist slopes, and seemed to be especially common in forests. The specimen from 8 mi. SW Kangnung was obtained in a wooded area along a mountain stream. The earliest date of collection of a specimen of dybowskii was March 7 at Taegwang-ni. See also the remarks under the preceding account of Rana amurensis coreana.

The largest male among our specimens measured 65 in snout-vent length and the largest female, 79. Five gravid females had snout-vent lengths of 64, 68, 69, 69 and 70.

Trionyx sinensis Wiegmann

Remarks.—Our only specimen was purchased from a man who had captured it by hand in the Han River; it was the only turtle seen during our stay in Korea. Koreans eat turtles, and the elaborate (and relatively permanent) fish-traps that they construct across streams and small rivers probably reduce the size of populations of T. sinensis and other species.

Eremias argus Peters

Remarks.—Individuals of E. argus were most often seen on dry hillsides having a relatively sparse cover of vegetation. The first lizard of this species was taken on April 2. In 1954 the last part of March and early part of April were generally warm, with temperatures above 70° F. on several occasions; probably some E. argus were active in late March. KU 38773 (snout-vent length, 51) laid three eggs between June 4 and 14; KU 38768 (snout-vent length, 58) obtained on May 8 was gravid, containing four eggs. Testes of lizards in the breeding season measure approximately 4.0 x 2.5 (KU 38772, obtained on June 16).

The snout-vent length of our largest female is 61, that of the largest male, 57. The snout-vent length of 11 specimens averaged 77 (67-96) per cent of length of tail.

Tachydromus amurensis Peters

Remarks.—One of our specimens was found among grasses along a small stream in the Central National Forest. The other two were obtained by other persons and we lack knowledge of conditions of their capture.

A juvenile (KU 39416, snout-vent length, 25) that was obtained on September 9 is tentatively referred to this species. There seem to be three femoral pores on the left leg but the number is indistinct on the right. The specimen is dark and lacks a pattern. Its condition precludes counts of ventral scales (not keeled), but scalation is otherwise the same as a male (KU 40120, snout-vent length approximately 47, length of tail, 124). The third specimen, a male (UMMZ 113442, snout-vent length, 51, length of tail, 115), agrees with KU 40120, except in having 32 instead of 29 dorsal scales at midbody, 4-4 instead of 3-3 femoral pores, and in lacking a pale stripe from eye through ear to shoulder.

Tachydromus wolteri Fischer

Remarks.—On April 14, two females (57 and 45 in snout-vent length, the tail of the latter measuring 103) were easily captured by hand on a burned-over rice field.

Lygosoma reevesii (Gray)

Remarks.—On October 23 an individual was captured while sunning on a stump on a wooded hillside in the Central National Forest; two others at this locality were collected on damp ground-cover on the same hillside. A juvenile from Cheju Do was found among moss-covered rocks in a stream bed; the other specimens from Cheju Do were found among moss-covered rocks on the western slope of Halla San.

Each ovary of a female obtained on October 23 contained five enlarged follicles, about 1 mm. in diameter. The left testis of a male obtained on August 10 seemed enlarged, indicating possible sexual activity, and measured approximately 6 x 2 mm. The snout-vent length of our largest male is 41, that of our largest female, 48. The prefrontals are in contact in all of our specimens save one (UMMZ 113446).

There is disagreement among herpetologists concerning the generic name of the small lygosome skink in the United States and its ecological equivalent in China and Korea. We tentatively use Lygosoma (Conant, 1951:207-208), although Mittleman (1950) pointed out reasons for using Scincella. Shannon (1956:41) discussed the debated issue whether or not the lygosome skinks of the New and Old worlds are conspecific.

Rhabdophis tigrina lateralis (Berthold)