504 * DUNN. 



were 13 costal grooves. It was a female with head length 17 mm., 

 and bod}' length 36 mm. 



Paehypalaminus boulengeri is probably closest to the present animal. 



The range according to Tago (1907) is mainly south of Tokyo. 

 Definite localities are few. Besides Nara, in Yamato Province, Tago 

 (1907) records it from Unebi in the same Province, Okajima (1911) 

 from Asakawamura, Musashi Province, and Abe (1921) from Bingo 

 Province. 



Specimens seen: 5, as follows; 

 Hondo: Province Yanato; Nara 1 (Cal. Acad. Sci. 26714). 



Central Hondo 3 (Cal. Acad. Sci. 25948-50). 

 Japan: 1 (Cal. Acad. Sci. 35391). 



Genus Pachypalaminus Thompson. 



1912. Pachypalaminus Thompson, Proc. California Acad. Sci. (4), 3, p. 183, 

 (type Pachypalaminus boulengeri Thompson). 



Range: Same as that of type species. 



Diagnosis: Hynobiidae with horny covering to palms and soles and 

 over tips of digits; premaxillary fontanelle large; lungs ?; gills of 

 larvae ?; vomerine teeth in Y-shaped series; tail very flat; one 

 species. 



Pachypalaminus boulengeri Thompson. 



1912. Pachypalaminus boulengeri Thompson, Proc. California Acad. Sci. (4), 

 3, p. 184, pi. 14. 



Type: Cal. Acad. Sci. no. 33192, adult male. 



Type Locality: Odaigahara Mt., Yamato, Hondo, Japan. 



Range: Known only from type locality. 



Diagnosis: A salamander with the dentition of Hynobius; a very 

 flat tail; "palms, soles, and inferior surface and tips of fingers and 

 toes covered with a tough brown corneous modification of the epi- 

 dermis," (as in Batrachuperus); no markings. 



Description: "Head large, depressed, and as broad as long; snout 

 long and rounded; nostril situated a trifle nearer to the orbit than to 

 the tip of the snout; eyes rather large and prominent; orbit contained 

 one and one third times in the length of the snout. Series of palatine 

 teeth interrupted, not forming a reentrant angle; apices of the two 



