1879.] MR. W. OTTLEY ON THE GROUND-HORNBILL. 461 



(5) Furnarius tricolor, During; Cab. J. f. O. 18/8, p. 196. 

 This little species, which is quite new to me, is even rather smaller 



than 1\ minor, Pelzeln, and quite different in colour. 



(6) Synallaxis orbignii (rleichenb.); Scl. P. Z. S. 1874, p. 22. 

 Dr. Doring's skin is marked « S. fugax, sp. nov.," but'agrees 



wel with one in my collection (ex Mendoza, S. crassirostris, Land- 

 beck) which I refer to S. orbignii (Reicheub.). 



(7) Synallaxis sclateri, Doring; Cab. J. f. O. 1878, p. 196. 

 This species, which Dr. Doring has done me the honour to call 



after me, is certainly very nearly allied to my S. hudsoni (P. Z. S. 

 1874, p. 25), and may be the same. Unfortunately I have mislaid 

 the typical specimen of S. hudsoni, and cannot make the necessary 

 comparison. There is a faint tinge of yellow on the throat of S. 

 sclateri ; this was certainly well marked in my S. hudsoni. 



(8) Phacellodomus sibilatrix, Doring, MS. 



I have already a Bolivian example of this species in my collection, 

 but had confounded it with P. frontalis, as likewise Lafresnaye and 

 D Orbigny seem to have done. It appears distinguishable from P 

 frontalis by the rufous colour on the bend of the wine 



(9) Notuoprocta doeringi, Cab. J. f. Om. 1878, p. 198. 

 This species is closely allied to N. pentlandi (Gray), of Bolivia 



aud to N.piinctulata (Gray), of Chili. Specimens of all three species 

 are in the Pans Mnspnn, ' ucs 



The following papers were read : — 



1. A Description of the Vessels of the Neck and Head in the 

 Ground -Hornbill (Bucorvus abyssinicus) . By W. Ottley 

 F.R.C.S., Demonstrator of Anatomy at Univ. CoiL 

 Lond. 



[Received May 17, 1879.] 



fi m U M P T r re ? d , bef ° re this Societ ? in 1876 ee P - z S. 1876, p. 

 00), Air Garrod drew attention to a peculiarity in the vessels of the 



insll th ; i Gr0UD f d - H , 0rnbU 1 1 ' and P° infed °«' that the carS r er es 

 instead .of being found m their usual place in the middle of the neck 

 and in the hypapophysial canal, were replaced by two vessels which ac- 

 companied the pneumogastric nerves as far as the head. This necu 

 hanty had not been observed in any other bird, the nearest approach 



l£ f "Sf v 1 \ S0 , m l Parr0tS ' Where such a ve «^l is found on one 

 side of the neck, while the carotid artery of the other has its normal 

 portion. Though at first inclined to suppose that these abeiran 

 arteries were really carotids, Mr. Garrod felt some doubt on the po™ 



