318 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Quite different is it on the upper part of the Dinder. On -reaching 
the stretches where the great open ‘meres’ begin, shortly below Um 
Orug, we found them really common. Cotton (1912) found them com- 
mon on the Galegu, but saw only a few on the Dinder, below the junc- 
tion of these two streams. He adds that they are not found on the 
Rahad, but are common on the Setit. We first found them a short 
distance above the Galegu, at Beit el Wahsh, where a few were feeding 
on a large ‘mere,’ and beyond this point we saw small numbers, usu- 
ally feeding in similar places. At Um Orug they were plentiful and 
remarkably unsuspicious. Dr. Phillips at one spot came upon a 
Waterbuck that allowed him to walk entirely around it at a short 
distance. Another that he obtained must have recently escaped 
from a lion as its back was deeply scratched and its belly so injured 
that the intestines protruded through the open wound. Shortly 
above the Galegu junction we saw a lion stalking an old Waterbuck in 
the open sandy bed of the river at about midday. On one large 
‘mere’ at Um Orug, Dr. Phillips saw ninety-seven Waterbuck at one 
time, quietly feeding, and later that evening we found others there, 
grazing by the half moonlight. This with the Reedbuck was usually 
the last of the antelopes to take fright when several species were 
feeding together. During the heat of the day they are apt to rest 
under the shelter of the thorn trees, and it is common to see them in 
small parties consisting of a buck and two or three does. 
OUREBIA MONTANA (Cretzschmar). 
Abyssinian Oribi. 
Antilope montana Cretzschmar, Riippell’s Atlas reise nordlichen Afrika. 
Sdugeth., 1826, p. 11, pl. 3. 
In his original description of this species, Cretzschmar gives its 
known range as Bahr-el-Abiad and the mountains about Fazogli 
(spelled “Fazuglo”). The latter are merely hills, however, so that 
the name “montana” is somewhat misleading. This is the common 
antelope along the Blue Nile and is called by the Arabs “ghazal.” 
In many of its habits it corresponds to our Virginia Deer. It inhabits 
the edge of the tall grass jungle along the river bank, or the bushy 
tangles in which it finds a safe retreat. We also met with it on the 
slopes of the ‘gebels’ or hills. It is watchful and resourceful, yet 
hardly to be considered shy, so that it seems well adapted to survive 
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