120 
Mr. H. Seebohm on the Genus Cursorius. 
(Pluvianus), probably in consequence of its frequenting the 
muddy banks of rivers, like the Ringed Plovers; but there 
seems to be no valid reason why it should not remain in the 
genus in which Wagler placed it. It agrees with C. sene- 
galensis in having a shorter tarsus than usual, and with 
C. bitorquatus in having white bands across some of the pri¬ 
maries. It also agrees with the latter species in not having 
the claw of the middle toe pectinated; but examples of 
C. senegalensis also occasionally show no trace of this 
peculiarity *. 
In order to show the mutual relationship between the 
species of this genus and also some of the more prominent 
differences in the adults, I have constructed a diagram which 
serves as a key to the species, more simple and concise, 
though conveying more information, than those in ordinary 
use :— 
f somalensis. 
Hind head slate-grey.. gaUicus . 
S^rufus . 
Black on belly . J seneyaUnsis . 
^ coromandelicus . . 
1 
’ Under wing-coverts black. 
< 
chalcopterus 
Feathers of upper part 
with pale margins 
White patches near end 
of primaries . 
fcinctus ... . 
L bicinctus ,. 
j’bitorquatus 
{ cegyptius. 
> Upper tail-coverts white. 
Inner primaries chestnut- 
buff. 
J 
* A recent reviewer, in 1 Nature,’ of Professor Newton’s excellent article on 
Ornithology in the 1 Encyclopaedia Britannica,’ finds fault with the learned 
writer on account of his unfavourable criticism of Sundevall’s ‘ Tentamen.’ 
If the Swedish ornithologist’s treatment of the group of birds commonly 
called Limicolae be a fair sample of the whole work, one can only come to 
the conclusion either that the anonymous reviewer was unacquainted with 
