PICI 189 



is connected with the anterior part of the dorsal tract by a 

 single row of very small downy feathers. 



In Malacoptila fusca ' the oil (/hind has a few fine hairs 

 at the apex' (NiTzscn). The aftershaft is absent. 



The tongue of Bucco macula tun is long, flat, and thin ; the 

 tip is not lacerated ; the base is spiny. 



The muscle formula of the leg is given as AXY . Two 

 carotids are stated to be present. 



The deep flexor tendons are like those of the Capitonidse. 

 The flexor hallncis supplies digits I., II., IV. The flexor 

 profundus supplies only digit III. The two where they 

 cross are connected by a small vinculum. 



Monasa nigrifrons has fourteen cervical vertebra. The 

 atlas is perforated for the odontoid process. The eighth 

 vertebra has two catapophyses, which come into contact at 

 their bases in the middle line ; on the ninth is the first 

 median hypapophysis ; these continue to the first dorsal ; 

 on the thirteenth cervical are large catapophyses, which are 

 present, but much smaller, on the hypapophysis of the next 

 vertebra. There are only three free dorsals, all of which 

 bear ribs reaching the deeply two-notched sternum, which 

 has a long spina externa. 



The clavicles are expanded into a wide, thin, roughly 

 triangular plate at their attachment to coracoids ; there is a 

 thin but broadish hypocleidium where they meet below. 



The skull is desmognathous, and in front of the conjoined 

 maxillo-palatines is a gap of about half an inch in length 

 in the bony palate. The process of the squamosal very 

 nearly reaches the jugal bar. The lacrymal completely 

 reaches the jugal bar in front, and the descending process is 

 in contact, but not fused, with the strong and swollen 

 ectethmoids. The interorbital septum is quite complete, as 

 is the intranarial. 



The Rhamphastidae (toucans), with their large bills, 

 serrate slightly at the edge, bear a certain superficial resem- 

 blance to the hornbills, with which, however, they have no 

 specially intimate connection. They are, on the other hand, 



