HALOYONID^. 
335 
Halcyon, Sw. BiU long, very straight, cylindrical ; 
the sides widened ; the base more or less depressed. 
Gonys ascending. Feet syndactyle. 
Baceh, Leach. Margin of the upper mandible consi- 
derably sinuated near the tip. Wings lengthened , 
the quills slightly mucronate. Tarsus covered with 
rough scales. Australian range. 
D. gigantca. White’s Voy. pi. 2. 
Halcyon, Sw. {fig- 290. d) Bill long, straight, broad, 
nearly quadrangular. Culmenslightlyinclimngtowarda 
the tip near which the margin is slightly sinuated. 
Gape smooth. Wings broad, short, rounded. Tail very 
short. Feet syndactyle. Scales of the tarsus obsolete. 
H. cinnamomina. Z.lll.i.67. lilacina. Soon. Vjoy. pl.^218. 
'diops. PI. Col. 272. 
melanorynclm. Ib. 891. 
omnicolor, lb. 135. 
Smyrnensis. P. E. 894. 
ruficollis. Sw. Ib. 232. 
concreta. lb. 346. * 
atricapilla. PI. Enl. 673. 
capensis. Ib. 590. 
collaris. Z. III. i. pi. 27. 
sanctius. Ein. Tr. xv. 206. 
leucocopbala. P. Enl, 757. 
chlorocephala. lb. 783. f. 2. 
concreia. xu. " , . 
Syma, Lesson. Differs from Halcyon in ^ 
margins of both mandibles, for two thirds of thei 
length, armed with numerous sharp and strong teeth.t 
s. Lessonia. Sw. (S. torotoro. Voy. Coq. 2.) 
Todiramphus, Lesson. Habit of Halct/on. BiE broad, 
and greatly depressed its whole length ; the tips round- 
ed obtuse, and not indexed. Gonys ascemhng, but 
without a ridge. Gulmen obsolete. Commissure per- 
fectly straight. Nostrils, winp, tail, and feet as m 
Halcyon ; but the scales are distinct. South Seas. 
T. saccr. Less. Mem. Soc. d’Hist. Nat. iii. pi. 11. 
Ceyce, Lacepede. BiU and general structure of Bacelo ; 
but the inner fore toe is wanting.^ 
C. tridactyla. Soon. Voy. pi. 32. 
Alcbdo, Linn. BiU very straight, compressed its whole 
length : the tip of both mandibles acute, and t e 
» Add to these the species described in West Af. its other 
\ This tvpe I have never seen, and am, therefore, unable to a 
cbar.wters!or to determine whether it enters into thU circle or the next, 
t This type I have never seen. 
