JACANA. 183 



with brownish black and purplish gray. Hab. Pacific coast of North 

 America, from Lower California north to the Aleutian Islands and 

 across to the Kurils.... 287. H. bachmani AUD. Black Oyster-catcher. 

 & 2 . Length 18.00-20.00, wing 10.25-10.80, culmen 2.82-3.00, greatest depth of 

 bill anterior to nostril .60, tarsus 2.10-2.20, middle toe 1.70-1.75. Hab, 

 Coast of Chili. 



H. ater VIEILL. Chilian Black Oyster-catcher. 1 



FAMILY JACANID^. THE JACANAS. (Page 143.) 



Genera. 



(Characters same as those given for the Family) Jacana. (Page 183.) 



GENUS JACANA BRISSON. (Page 183, pi. LVL, fig. 6.) 



Species. 



Adult : Head, neck, chest, and upper back uniform greenish black ; quills and 

 secondaries pale yellowish green, bordered at tips with dusky ; rest of plumage 

 uniform rich purplish chestnut. Young : Top of head grayish brown, bordered 

 along each side by a broad superciliary stripe of buffy white ; a dusky streak be- 

 hind eye extending to hind-neck, which is also dusky or dull brownish ; rest of 

 head and neck, with whole lower parts, except sides, buffy white; upper parts 

 grayish brown, the feathers more or less distinctly tipped with rusty buff (obsolete 

 in older specimens), the quills pale greenish, as in adult. Length about 8.50, wing 

 4.50-5.40, culmen 1.15-1.40, tarsus 1.90-2.35, middle toe 1.85-2.25. Eggs 1.22 X -94, 

 olive-tawny or tawny olive, marked all over with confused " pen-lines" of black, and 

 occasional "blots" of same. Hab. Whole of Middle America, from northern Mexico 

 (including the lower Rio Grande Valley in Texas) to Panama ; Cuba ; Haiti. 



288. J. gymnostoma (WAQL.). Mexican Jacana. 



1 Hsematopua ater VIEILL., Gal. Ois. ii. 1825, 88, pi. 220. 



