Genus— R HYACOPHILUS. 
Rhyacophilus Kaup, Skizz. Entwick-Gesch. Nat. Syst., 
p. 140, 1829 B. glareola. 
Also spelt — 
Rhyocophilw Bonaparte, Ann. Sci. Nat., Ser. IV., Vol. I., p. 149, 1854. 
Rhynchophilua id., Comptes Rendris Sci. (Paris), Vol. XLIII., p. 597, 1856. 
Small Totanine Waders with short straight slender bills, long wings, short 
tad, long legs, and long feet. The culmen is short, straight and slender, 
with the groove in the upper mandible scarcely extending beyond half its 
length : it is less than one-fourth the length of the wing and shorter than 
the metatarsus, and only about equal to the middle toe and claw. 
The wings are long and pointed with the first primary longest, and more 
than twice the length of the tail and more than three times the length of 
the metatarsus. The tail is comparatively short and rounded, less than half 
the wing and longer than the metatarsus, but shorter than the metatarsus 
and exposed tibia. 
The metatarsus is of medium length, being less than the tail but 
longer than the culmen or middle toe : the exposed tibia is however 
proportionately long, being more than half the length of the metatarsus. 
The toes are long, the middle toe being two-thirds the length of the 
metatarsus, longer than the exposed tibia, and httle less than the culmen, 
with the claw exceeding the last named. The webbing of the feet is as in 
the preceding genus, and a long hind toe is present. 
This genus, generally compared with Tringa {=Helodro7nas Auct.), seems 
to me to have more afimity with Iliornis. 
VOL. m. 
229 
