108 Proc('('(li)i(/.s of hidiarc Acadciiii/ of t^cicnce. 



The species now relVrable ti> this ireiius are : 



Fulix marila tnarila (Linnaeus) 

 FuUx marila mariloides (Vigors) 

 FuHr marila nearctica (Stejneji'er) 

 FuUx affinis (Eyton) 

 Fulix novaeseelaniUae (Gmelin). 



Fuligula STEPHENS. 



Fulifjula STEPHENS. Sliaw's Gen. Zool.. XII. pt. ii. 1824. p. 187 (type 

 by tautonymy, Anas fuligula Linnaeus). 



Ania BONAPARTE. Ann. Lye. Nat. Hist. N. Y.. II. 1828. p. 386 (in synon- 

 ymy of FiiH(/iil<i : type tlins l)y virtnt- of siil)stitnti(>n. Aiia.s fiilifiiila Lin- 

 naeus). 



Glaticium GRAY. List Genera Birds. 1S40. p. TH (Brisson MS., in synonymy 

 ot Fuligula "Ray" [= Gray]) (type by virtue of sultstitution. .L/ff.v fuligula 

 Linnaeus). 



Diagnosis. — Similar to Fuli.r. but tip of bill much rounded, its width at 

 posterior end of nail less than 2 1/2 times the length of nail ; and head with 

 a long occipital crest. 



Description. — Wing 5 times the length of exposed culmen : bill relatively 

 little flattened terminally, its width near end 1 1/10-1 2/10 times its width 

 at base, its tip romided. its width at posterior end of nail 2-2 1/4 times the 

 length of nail ; tip of maxilla much hooked ; nail of bill broadly triangular ; 

 height of bill at extreme base 5/6-10/20 of its greatest width; base of cul- 

 men not deeply concave ; length of exposed culmen 2-2 .S/8 times the height 

 of bill at extreme base. 1 0/10-2 times the greatest width of bill, and decid- 

 edly less than the length of inner toe with claw : anterior outline of feather- 

 ing at the base of culmen triangular and acutely pointed ; feathering on 

 sides of maxilla not reaching forward as far as that at the base of culmen; 

 a long (75 mm.), .slender occipital crest. 



Type.— Arias fuligula Linnaeus. 



Remarhs. — This bird is much more closely allied to the genus Nyroca 

 than to Fulix, despite its coloration, as may be seen from the diagnosis 

 herewith given. Its long, pointed crest is unique among the species here 

 considered, although some of the others have the feathers of the pileum 

 lengthened into a short, bushy crest. 



The name to be applied to this genus is, of course, clearly Fuligula 

 Stephens.' as its type is. by tautonymy, Anas fuligula Linnaeus. The name 

 Platypus Brehm,^ by some others cited in the synonmy of Fuligula, is a syn- 

 onym of Somateria Leach, as is established t>y the designation of its 

 type by Lesson' as An^is mollissima Linnaeus. 



The only species of this genus is Fuligula fuligula (Linnaeus). 



Nyroca FLEMING. 



Nyroca FLEMING. Philos. Zool.. II. 1822, p. 260 (type by tautonymy. 

 Anas nyroca GiildenstJidt). 



nu Sh.nvs (i.Mi. Zool.. Xir, pt. ii. 1S24, p. 1 S7. 

 -Li'lirb. <1. .\:i(nrjr. Eur. Voff.. II, 1S24. p. SOo. 

 '*M.iii. dOiiiith., II, June, 1828, p. 415. 



