626 Prof. E. Lonnberg on Eastern Hedgehogs. 
Pterygoid fossa narrow, only 3°5 mm. where it is broadest, 
hardly 3mm. at posterior end. There is a rather broad 
shelf behind the transverse posterior ridge of the palate, but 
there is also a well-developed median spine (unlike in 
F, orientalis, Allen). 
Geographically spoken, Erinaceus orientalis, Allen, 1903, 
and E. ussuriensis, Satunin, 1906, are perhaps the next 
neighbours to this hedgehog from Korea. The latter differs, 
however, very much with regard to the striking coloration 
of its lower side with its cinnamon and tawny shades, while 
E. orientalis is said to have the “ventral surface very pale 
yellowish,’ and H. ussuriensis is in the middle of breast and 
belly ‘“ greyish white,’ otherwise greyish brown with a mix- 
ture of white hairs. The shoulders of the latter appear to 
have the last-mentioned mixture of brown and white hairs, 
and in E. orientalis they are ‘‘ pale greyish sandy brown,” 
but in the Korea Hedgehog white. The skull of the latter 
is smaller than that of both the other species, and especially 
is the shortness of the nasals striking, and this depends as 
well on the shortness in front as on less extension backwards. 
Erinaceus chinensis, Satunin, 1906, from Chingan, is, 
according to its author, covered on the lower side with 
“ dichter weisser Wolle,’”’ and it is thus rather different from 
the Korea animal. The skull of the former is larger than 
that of the latter and, although the single type-specimen 
is said to be young, it had already longer nasals than the 
old specimen from Korea. Satunin expresses a suspicion 
that possibly his chinensis may prove identical with dealbatus. 
It is very difficult to form any definite opinion in this matter, 
but it does not appear very probable. Perhaps it is more 
related to orientalis. 
The difference between the Korea Hedgehog and F. deal- 
batus is very great, not only with regard to the colour, but 
also with regard to the smallness of the claws of the latter. 
The cranial characteristics are also very different, e. g., the 
difference in length of nasals. 
Ericius przewalskii, Satunin. 
1 9,17. 8.1920, Bank Tjaggan, Mongolia; 1 ?, 17. 8. 
1920, near Burtun Nor, Mongolia (Professor Andersson coll.). 
‘Several names have been given to members of this genus 
( = Hemiechinus, Fitz.) found in Eastern Asia, e. g., dawuricus, 
Sundevall, 1841, albulus alaschanicus, Satunin, przewalskit, 
Satunin, 1907, and miodon, Thomas, 1908. Of these albulus 
alaschanicus is easy to exclude at once from the comparison 
with the present specimens, in consequence of its small size. 
The remaining three are much similar as well znter se as also 
