Genus TOCKUS. 

 Bill much smaller than in Anthracoceros, without the casque, but with the ridge of the 

 culmen sharp and slightly elevated, and with the sides of the upper mandible vertical at the base ; 

 the cutting-edge serrated. Nostril basal and round ; orbital region wide. Eyelids furnished 

 with stiff lashes. Wings, tail, and feet as in the last genus. 



TOCKUS GINGALENSIS. 



(THE CEYLONESE HORNBILL.) 



(Peculiar to Ceylon.) 



Buceros gingala, Wilkes, Encycl. Loud. iii. p. 480 (1808). 



Buceros gingalensis, Shaw, Gen. Zool. viii. p. 37 (1811); Temm. PI. Col. ii. p. 17 (1824) ; 



Blyth, Cat. B. Mus. A. S. B. p. 44 (1849); Kelaart, Prodromus, Cat. p. 126 (1852) ; 



Layard, Ann. & Mag. Nat. Hist. 1854, xiii. p. 260 ; Schlegel, Mus. P.-B. 1862, p. 12. 

 Buceros pyrrhopygus, W'agl. Syst. Av. (1827). 

 TocJcus gingalensis, Bonap. Consp. Gen. Av. 1850, p. 91 ; Jerdon, B. of Ind. p. 250 (1862, 



in part); Blyth, Ibis, 1867, p. 296 ; Jerd. Ibis, 1872, p. 5; Holdsworth, P. Z. S. 1872, 



p. 425 ; Legge, Ibis, 1874, p. 14, et 1875, p. 282 ; Elliot, Mon. Bucerotkte, pt. iv. (1877). 

 Bhinoplax gingalensis, Bonap. Consp. Vol. Anisod. 1854, p. 3. 

 Buceros (Penelopides) gingalensis, Von Mart. Journ. fur Ornith. 1866, p. 18. 

 The Small Hornbill, Kelaart ; Toucan, Europeans in Ceylon ; The Grey Hornbill or Jungle 



Grey Hornbill. 

 Kcendetta, Sinhalese. 



cf ad. supra sordide cinerascens, pilei plumis vix brunnescentioribus rnedialiter albido obscure liueatis : tectricibus 

 alarum purius cineraceis, nigro liinbatis : renn'gibus nigris vix viridi lavatis, primariis ad basin extremain albis, 

 primariis rnedialiter albo extus marginatis et albo late terminatis, secundariis extus cineraceis anguste albo 

 limbatis, intimis dorso concoloribus : rectricibus centralibus cineraceis, reliquis viridi-nigris, basaliter cineraceis, 

 exterioribus late albo terminatis : regione parotica nigrieanti-brunnea, albido anguste striolata : genis et corpore 

 subtus toto albidis, crisso rufescente : tibiis cineraceis : rostro albido, frontem versus mfescente, cubnine et 

 mandibula nigricantibus : pedibus cinereis, unguibus nigris : iride rubra. 



2 baud a mare distinguenda. 



Adult male and female. Length 22 to 23 inches ; wing S-0 to 8'3 ; tail 9 - to 9 - 5 ; tarsus 1*6 to 1*7 ; middle toe 1*3, 

 claw (straight) 0-55 ; bill, gape to tip, straight 3-9 to 4-3, along culmen 4 - 3 to 4-4. Expanse 27'0. 



Iris red ; orbital skin and eyelash black ; bill fleshy white in some, with a reddish tinge adjacent to the forehead, the 

 vertical part of the upper mandible black, lower mandible with a blackish patch beneath ; legs and feet slaty bluish 

 or greenish plumbeous, claws blackish. 



Head and nape reddish cinereous brown, each feather with a pale mesial stripe ; ear-coverts blackish brown, with pale 

 centres ; back and upper tail-coverts cinereous brown, paling to slaty on the hind neck, and with a slightly rufous 

 cast on the back in some ; wing-coverts greyish slate, the feathers margined with blackish ; quills black, the outer 

 webs of secondaries mostly slaty, with a still paler edge ; terminal portion of 3rd, 4th, 5th, and 6th primaries 

 white ; tail greenish black, the central feathers pervaded with a cinereous hue, and the terminal portion of the 

 remainder white ; normally this extends to half the feather on the two outer pairs, and decreases on each 



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