124 EHAMPHASTITI.F,. 



1. RHAMPHASTOS. r^ 



Type. 



Ramphastos, Lmn. S. N. i. p. 150 (1766) R. erytlirorhyncbus. 



Tucaius, £p. Consp. Vol. Zyij. p. 4 (1854) R. dicolorus. 



Builiynchus, Camn, Proc. Ac. Phil. 1867, p. 102 . R. carinatus. 



Tucaniis, Cassin, op. cit. p. ]04 R. erythrorliynclnis. 



Ramphoclryas, Cassin, op. cit. p. IOC) R. ariel. 



This genus embraces the largest and strongest species of the 

 family. They are mostly black and white in colour, varied with 

 scarlet and orange. 



The area of Rhawphasfos is co-extensive with that of the family, 

 or very nearly so. The most northern species is B. carinatiif!, 

 which is met with in the Mexican province of Vera Cruz : and the 

 most southern, JR. toco, which extends into the confines of the 

 Argentine Republic. 



In WMmpIiastos the sexes are similarly coloured. 



Koj to the Sjiecies. 



A. Upper tail-coverts white. 



a. Throat white 1. foro, p. 124. 



l). Throat yeUow. 



a'. Cap black ; nape reddish brown : 



I scarlet breast-band narrow ... 2. carinatu.'t, p. 125. 



( scarlet breast-band Avide 3. brcviearinatus, p. 126. 



V . Cap and nape reddi.'ih brown : 



I base of bill obscure 4. iocard, p. 127. 



) base of bill liplit reddish 5. amhif/mi.t, p. 128. 



R. Upper tail-coverts yellow or orange. 

 c. 15ill red, with pale basal and culminal 



bands (>. criithvorhiinchus,^. 128. 



(I. Bill black, with pale ba.=al and culminal 

 bands. 

 c . Black of bill with a reddish ba.=al spot. 7. iwca. p. 120. 

 d'. Black of bill uniform. 

 a". Throat white, or very sliglitly 

 tinged with yellow : 



j larger 8. cuvieri, p. 130. 



I .smaller 9. ctdminatus, p. 1.30. 



b". Throat lemon-yellow 10. cifreolcemus, p. 131. 



c". Throat yellow 11 . oscitlans, p. 131. 



0. Upper tail-coverts scarlet. 



e. Bill black, with a light basal band : 



j whole throat orange 12. ariel, p. 131. 



I sides of throat wliite 13. vitellinus, p. 132. 



/. Bill greenish, with black basal band . . 14. dicolorus, p. 133. 



1. Rliamphastos toco. 



Toucan de Cayenne, appell(5 Toco, Daub. PI. Enl. 82. 



Ramphastos toco, Miill. Si/st. Nat. Siippl. p. 82 ; Gm. S. N. i. p. 356 ; 



Lath. Lid. Orn. i. ]). loo ; Ma.r. Beitr. iv. p. 271 : Wagl. Si/st. Av. 



sp. 1 ; liin-m. Si/st. XTeb. ii. p. 203 ; Cab. in Schomb. Guian. iii. p. 721 ; 



Goidd, P. Z. S'. 1834, p. 74 ; id. Mon. Pamph. ed. 1, ]il. 6, et ed. 2, 



pi. 1 ; Sturm, Mon. Pamph. pt. iii. pi. i. ; Pp. Consj). i. p. 93 ; Scl. 



