518 Wisconsin Academy of Sciences, Arts, and Letters. 
and Selby in the genus Cirrepidesmus Bonaparte, along 
with Cirrepidesmus mongolus and Cirrepidesmns atrifrons 
( = pyrrhotliorax), but solely because of its similar color pat¬ 
tern. A careful comparison, however, of CJiaradrius falklan- 
dicus Latham and C}iarad7dus hicinctus Jardine and Selby 
shows that the two belong undoubtedly in the same genus, 
since they differ only very slightly in relative length of ex¬ 
posed culmen, dertrum, middle toe without claw, and bare 
portion of the tibia, and in a few other unimportant particu¬ 
lars, including the shape of the tail. The generic name Per- 
nettyva is therefore available for the group, the two species 
of which will stand as follows: 
Peimettyva hicincta (Jardine and Selby). 
Pe^mettyva falklandica (Latham). 
Plnviorliynchus Bonaparte. 
Pluvio^diyncJius Bonaparte, Comptes Kendus Acad. Sci., 
XLIII, No. 8, August 26-31, 1856, p. 417 (type, by subsequent 
designation [Sharpe, Cat. Birds Brit. Mus., XXIV, 1896, p. 
209], CJiaradrius ohscurus Gmelin). 
Hyetoce^^yx Heine, Nomenelator Mus. Hein. Ornith., 1890, 
p. 336 (nom. iiov. pm PluviorJiyncJius Bonaparte, vox hybridal). 
Diagnosis. —Similar to Pernettyva, but wing 2^ times the 
length of the tail, 5% times the length of the exposed culmen, 
and 4% times the length of the tarsus; tail 21/3 times the 
length of the exposed culmen; bill stouter, the tip much more 
expanded vertically, the gonys sharply angled and strongly 
ascending; exposed culmen 4/5 of the length of the head; der¬ 
trum about 1/2 the length of the exposed culmen; and tarsus 
short, only 11/4 times the length of the exposed culmen. 
Description. —Wing about 2i/^ times the length of the tail, 
5^ times the length of the exposed culmen, and 41/2 times the 
length of the tarsus; tail rounded, 2 1/3 times the length of 
the exposed culmen, and about 2 times the length of the tar¬ 
sus; bill long but stout, the tip much expanded vertically, the 
gonys sharply angled and strongly ascending; exposed culmen 
4/5 of the length of the head, 31/^ times the height of bill 
at base, and four times its breadth at loral feathering; dertrum 
slightly less than % the length of the exposed culmen; tarsus 
11 ^ times the length of the exposed culmen, and 1% times the 
