106 Proceedings of Indiana Academy of Science. 
here adopted corresponds fairly well with the general coloration of the 
species concerned, although Nyroca baeri is, of course, an exception. Fur- 
thermore, the sequence of species is virtually the same as that adopted by 
Mr. N. Hollister in his recent notes on the relationships of Fuwligula col- 
laris,: except that, of course, the sequence is reversed. 
The measurements of which use is made in proportional comparisons in 
this paper have been taken as follows: 
Length of wing—The distance from the bend of the wing to the tip of 
the longest primary, taken with dividers without straightening the quills. 
Exposed culmen (length of bill) —The chord of the culmen, taken from 
its tip to the point where the feathers of the forehead impinge on its base. 
Height of bill at extreme base——The distance in a straight line from the 
highest point on the base of the maxilla to the nearest point on the ramus 
of the mandible. 
Width of bill—Measured with dividers at the widest point near the end 
of the bill; at base: at point of greatest width; or at the posterior end of 
' the nail where this coalesces with the culmen. 
Length of the nail of bill—The chord of the dertrum, measured in a 
straight line from its tip to the point where it coalesces with the culmen. 
Inner toe with claw—Measured with dividers along the upper side from 
the middle of the joint between the metatarsus and the inner toe, in a 
straight line to the tip of the claw. 
The writer is indebted to Dr. C. W. Richmond for a number of references 
to generic names cited in this paper. 
Fuliz SUNDEVALL. 
Marila OKEN, Isis (von Oken), 1817, Heft VIII, col. 1183 (nomen 
nudum). 
Fulir Sundevall, Kongl. Vetensk.—Acad. Handl., for 1835 (1836), p. 129 
(proposed for ‘‘Anates lobatae,”’ with no species mentioned) (type by sub- 
sequent designation [Baird, Brewer, and Ridgway, Water Birds North 
Amer., II, 1884, p. 17], Anas marila Linnaeus). 
Marila BONAPARTE, Compt. Rend. Acad. Sci., XLIII, Sept. 30, 1856, p. 
651, (Reichenbach, MS.) (type by tautonymy, Anas frenata Sparrman [= 
Anas marila Linnaeus]) (nee Marila Reichenbach quae Aithyia Gloger). 
Nettarion BAIRD, Rep. Explor. and Surv. R. R. Pac., IX, 1858, p. 790 
(in text) (substitute name for the group to which /Fulir Sundeyall is 
simultaneously restricted) (type by subsequent designation [| Baird, Brewer, 
and Ridgway, Water Birds North Amer., II, 1884, p. 17], Anas marila Lin- 
naeus). 
Marila STONE, The Auk, XXIV, No. 2, April, 1907, p. 191 (Oken MS.) 
(type by original designation and monotypy, Anas marila Linnaeus) (nee 
Marila Reichenbach). 
Description.—Wing 41/2-5 times the length of exposed culmen; bill rela- 
tively but little flattened terminally, its width near end 11/10-13/10 times 
its width at base, its tip squarish, its width at posterior end of nail 2 1/2- 
31/5 times the length of its nail; tip of maxilla much hooked: nail of bill 
broad and triangular, or narrow and strap-like; height of bill at extreme 
’The Auk, XXXVI, No. 4. October, 1919, pp. 460-463. 
