288 Clark, Anatomy of the Cuban Trogon. [j^ y 



the sixth longest; the sequence is 6, 7, 5, 8, 4, 9, 3, 2, 1, 10; the 

 eighth is 97 mm. long, the fourth is 90 mm. and the tenth, 45 mm. 



The rectrices are twelve with ten major coverts; there is no 

 covert for rectrix no. 1 (middle pair) ; the covert for no. 2 lies over 

 its outer side; those for nos. 3, 4 and 5 are in the same relative 

 position while that for no. 6 lies over its inner side. This is the 

 usual passerine arrangement. The posterior end of the spinal tract 

 becomes broad (ten feathers) and dense at the oil-gland where it 

 ends, instead of being narrow there as shown in Nitzsch's figures; 

 it is distinctly separated from the series of major upper tail coverts. 

 The oil-gland itself is naked, without a tuft. The major under 

 tail coverts are 14 in number but on each side pass into a well 

 marked post-anal tract of covert feathers; the major coverts of the 

 middle rectrices are pushed out of position, so that coverts 1 and 2 

 lie, one over the other under rectrix 2, covert 3 is between rectrices 

 3 and 4, covert 5 is under rectrix 4, 6 is under 5 and 7 under 6. It 

 is not clear whether covert 7 is properly a major covert or is merely 

 a large minor covert pushed into the major covert line. The whole 

 question of the relation of under coverts to rectrices demands 

 investigation. 



Passing to the internal anatomy, we find the palate is essentially 

 as Forbes found it in Pharomacrus, 1 but the vomer is shorter and 

 stouter than in that trogon and does not extend forward between 

 the maxillopalatines. The sternum, as in other trogons, has two 

 deep incisions on each side, in the posterior margin, and the manu- 

 brium though long and stout is not at all forked. Four pairs of 

 ribs reach the sternum but the fifth pair falls short by over a milli- 

 meter, its tip resting only against the base of the fourth. 



The tongue is not "short and three-sided," as trogon's tongues 

 are said to be, but is 10 mm. long and has a bifurcate tip, each half 

 of which is a pointed horny bit, one millimeter long. Posteriorly 

 the tongue is 4 mm. wide with each posterior corner developed into 

 a conspicuous conical horny point over a millimeter long. There 

 is no crop and the gizzard is large and spherical, 18 mm. in diameter. 

 It was crammed full of fruits 7-8 mm. long by 4-5 mm. thick; 

 there were 10-12 of these fruits, some of which were considerably 



» Proc. Zool. Soc. London, 1881, p. 836. 



