HYNOBIIDAE. 



501 



If it is laid freely in the water, it drops to the bottom. I often noticed 

 that a part of the eggs, in such a free laid sack, are spoiled." 



The eggsack is 13-17 cm. long, 1.5-1.9 cm. thick in the middle, and 

 contains 37-70 eggs. "The number of the eggs varies with the size 

 of the sack. A pair of sacks is laid by each female and the number of 

 eggs is not always the same in both." 



"The single egg is covered by two coats, and the interval between 

 them is filled by a jelly mass." 



The egg is 3-3.2 mm. in diameter. The inner coat fits tight to 

 the egg at first, but later swells to a diameter of 6 mm. The outer 

 capsule is at first 4 mm. in diameter but swells eventually to an oval 

 whose diameters are 10 x 13 mm. 



Remarks: Very close to H. ikishimae. I have seen no specimens 

 of the Kiusiu form, but from the figures and measurements it seems 

 to differ from the species of Iki-shima in having a longer head, lighter 

 ground color, and flatter tail. The figure of nebulosus in Schlegel 

 (1838) shows an animal much resembling tsuensis of Tsu-shima South, 

 but differing in having a flatter tail with mottled sides. 



This seems the proper place to mention a specimen taken by Tago 

 (1907) at Ishizuchi yama, Umegahira, province Iyo, Shikoku. He 

 says "this animal may belong to some different species as I noticed 

 some differences in color, spots, and also a condition of the eggs while 

 in its body." He did not, however, describe it, but left it under 

 H. nebulosus, a course which I am compelled to imitate, although I 

 am convinced that the Shikoku animal will be found to differ both 

 from the Hondo and from the Kiusiu forms. 



Hynobius vandenburghi Dunn. 



1903. Hynobius jiebulosus Yamada, Tokyo Zool. Mag., 15, p. 73 (habits); 

 Tago 1904, Tokyo Zool. Mag., 16, p. 73; 1907, Tokyo Zool. Mag., 

 19, pp. 201, 233; Okajima 1911, Anat. Hefte 45, p. 1 (otic appara- 

 tus); 1911, Anat. Anz. 38, p. 27 (otic apparatus); Okajima and 

 Tsusaki 1921, Zeitschr. f. Anat. u. Entw. 60 (Scleral cartilages); 

 Tsusaki 1922, Fol. Anat. Jap. 1, p. 1 (Hyobranchial apparatus). 



1921. Hynobius naevius Abe (part?), Tokyo Zool. Mag., 34, p. 329. 



1923. Hynobius vandenburghi Dunn, Proc. California Acad. Sci., (4), XII, 2, 

 p. 28. 



Type: California Acad. Sci. No. 26714, adult male, collected May 

 1907. 

 Type Locality : Nara, province Yamato, Hondo. 



