Mr. W. R. Ogilvic-Grant on American Gallinse. 245 



front with 11 or 12 scutes. The feathers from the front of 

 the vertex to the nape are black, with two broad white bands 

 in the middle. The neck and the head are black. The back 

 and the wings are black, with numerous transverse white 

 lines. Some of these lines are visible on the median rectrices, 

 whilst others are uniform black, all turning to white towards 

 the point. The breast, the lateral parts of the body, and the 

 legs are yellowish, with broad, transverse, black bands ; the 

 belly and the under tail-coverts are uniform yellowish. Tlie 

 wing measures 34, the tarsus 10 centim. 



'' Mus. Paul. Est. de S. Paulo.^' 



This is apparently based on a female of Crax pinima. The 

 description of the plumage agrees almost exactly with that 

 of specimen " c" in the British Museum Collection, described 

 [cf. Cat. B. Brit. Mus. xxii. p. 447 (1893)] as '' a second and 

 apjjarentli/ less mature specimen." The groove on the bill is 

 probably accidental and of little importance. 



16. Ortalis cinereiceps (Cat. B. xxii. p. 515). 



Ortalis struthopus Bangs, Pr. New Engl. Zool. Clidj, iii. 

 p. 61 (1901) [Arch, de las Perlas, Bay of Panama]. 



The birds from the Archipelago de las Perlas are separated 

 from typical 0. cinereiceps (Gray) on account of their 

 ''very much smaller and weaker^' foot and tarsus. The 

 measurements given are as follows : — 



Middle toe 



Tarsus. aud claw, 



in. in. 



Ortalis strut/iopus, <^ 2'32 2'74 



9 2 02 2-22 



Ortalis cinereiceps, J 2*52 8'08 



? 2-36 2-56 



This difference in size (which, as shown by our series, has 

 no real existence) is, we venture to think, hardly sufficient 

 to entitle the birds from the Archipelago de las Perlas to 

 specific or even subspecific rank. 



