428 Miller, Genera of Ceryline Kingfishers. (.July 



b A conspicuous occipital crest; 18 secondaries; tail graduated for 

 one-thirteenth of its length; 2nd toe with claw normally ex- 

 ceeding 4th without claw; outer webs of secondaries uni- 

 form green; green chest-band incomplete, the feathers not 

 barred; larger (wing 125-146 mm).. .Chloroceryle amazona. 



bb Scarcely crested; 14 or 15 secondaries; tail graduated for one- 

 fifth or one-sixth of its length; 2nd toe with claw rarely ex- 

 ceeding 4th without claw; outer webs of secondaries light- 

 spotted; green chest-band complete, the feathers barred; 



smaller (wing 54-106 mm) Chloroceryle americana 



Chloroceryle inda 

 Chloroceryle cenea 



The interrelationships not expressed in the key may be briefly 

 stated. Megaceryle maxima agrees with M. lugubris and M. 

 guttulata in the pattern of the primaries and approaches them in 

 the markings of the npperparts and in the extent of cohesion of 

 the toes. M. alcyon resembles these same two species in the 

 slight development of the tomial serrations, and approaches them 

 in the curvature of the bill and the size of the crest. M. torquata 

 is practically identical with M. alcyon in the union of the toes and 

 in the color of the upperparts, but M. t. stellata recalls M. maxima 

 in the pattern of the upper surface. 



At the time my paper was written no skeleton of Ceryle varia was 

 available and the skull only of Chloroceryle amazona. I now have 

 a complete skeleton of each of these species and am able to com- 

 pare them with skeletons of Megaceryle alcyon, M. torquata and 

 Chloroceryle americana. 



Chloroceryle amazona resembles C. americana in the coracoid, 

 spina sterni, and preiliac process; in the form of the clavicle it 

 is intermediate between its congener and Megaceryle. 



As indicated in the accompanying key, Ceryle agrees with 

 Megaceryle in the form of the expanded maxillary, and with Chloro- 

 ceryle in the shape of the coracoid and clavicle, in the long spina 

 sterni, in the narrow T lacrymal, the descending process of which 

 is greatly swollen and does not reach the maxillary, and in the 

 small size of the preiliac process. The anterior edge of the sternal 

 keel agrees with that of Chloroceryle amazona and both of these 

 species are in this feature intermediate between Megaceryle and 

 Chloroceryle americana. In the relation of the pars plana to the 



