474 DUNN. 



of affairs in leechii. Unfortunately leechii varies far more in color than 

 does jicropus but in all its variation it never reproduces the coloration 

 of its ally in Hondo. 



This is beyond question the form described almost simultaneously 

 by Tago as fuscus and by Stejneger as nigrcsccns. That the two were 

 the same was admitted by Tago, and the two type localities, Nikko 

 and Sendai, are mentioned by both authors. 



The range of variation in the specimens I have seen covers the 

 descriptions of lichenatus and of peropus. Tago with his large series 

 and wide field experience could find no specimens of these two forms 

 and regarded them as very doubtfully distinct. He says "the only 

 difference between fuscus and lichenatus is the rudimentary fifth toe of 

 the latter." This is a purely individual variation, as series of several 

 species of Hynobius show, although three forms apparently always 

 have only four toes. I refer Abe's " abnormal " specimen of " naevius" 

 from Gumma to this form. It had short vomerine series, and a long tail. 

 Stejneger's specimen of ncbulosus from Nikko had 13 costal grooves, 

 thus differing from his specimen of nigrcsccns from Nikko which had 11 

 costal grooves. As the Inawashiro series shows, this is individual 

 variation. I have examined this Nikko specimen of "nebulosw" 

 (Tokyo Col. Sci. No. 51) and find that it is unquestionably the present 

 form. Boulenger (1882), and Okada (1S91) record //. ncbulosus from 

 Nikko, Sternfeld (1916) records it from Shimozuke and Abe (1921) 

 from Shinano. All four doubtless refer to the present form. 



Besides the localities mentioned in the list of specimens, it has been 

 recorded from the following places: 

 Hondo: Mottsu Province: Aomori (Boulenger 1883, lickenatus). 



Rikuzen Province: Sendai (Stejneger 1907, nigrcsccns: Tago 

 1907, fuscus). 



Ozen Province: Shonai (Abe 1921). 



Echigo Province: (Abe 1921). 



Hida Province: (Abe 1921). 



Ishikawa Prefecture: (Abe 1921). 



Gumma Prefecture: (Abe 1921). 



Kotsuke Province: Lake Suganuma (Tago 1907, fuscus). 



Shinano Province: Mt. Togashi (Tago 1907, fuscus). 



Yamato Province: (Stejneger 1907, peropus). 

 Specimens seen: 39, as follows; 

 Hondo: Rikuoku Province: Mimaya, 7 larvae (Cal. Acad. Sci. 26716, 

 25395a-f); Ozorezan, 1 larva (Cal. Acad. Sci. 26708). 



Rikuzen Province: Shiogama, 5 larvae (Cal. Acad. Sci. 

 25669a-e). 



