10S PROCEEDINGS OF THE ACADEMY OF 



destitute of all markings except on the hind neck and sides of the head, 

 whereas the female of affinis, besides its duller plumage, has the wing coverts 

 brownish black barred and tipped with rufous, and the smaller quills barred 

 and spotted with black ; there are also black spots on the upper part of the 

 breast, and faint indications of narrow bars on the upper and under plu- 

 mage. 



I have enlarged more in pointing out wherein this species differs from affinis 

 for the reason, that I sent it to Mr. Sclater for publication (with some other 

 birds) in the Ibis, more than two years since. He returned it marked "affi- 

 nis;" to this opinion I demurred on the ground of that species having the crest 

 largely white, which in this is entirely black. I so wrote him; he replied that 

 not Laving the specimens before him he could uot then determine, but would 

 do so when examining Mr. Salvin's collection received from Panama. In 

 the List of that collection given, Proc. Zool. Soc. June, 1864, I notice T. affinis 

 is given, and referring the bird I called T. doliatus, (Ann. Lye. N. Y. vol. vii. 

 p. 293,) to the same species ; this specimen was in McLeannan's first collec- 

 tion ; when I received the collection made by Messrs. McLeannan and Gal- 

 braith, I noticed that the species now described was not doliatus, but supposed 

 it was similar to the one so called in my Catalogue, without comparing them. 

 I thereby misled Mr. Sclater, as I have since found that the specimen in Mr. 

 McL.'s first collection is T. radiatus. But as Mr. Sclater only saw the speci- 

 mens now described, of course these are the ones alluded to as being " affi- 

 nis." 



I do not pretend to say that the specimens received by Mr. Salvin from the 

 Isthmus and put in the List as affinis, are the same as mine now described. 

 There is every probability of affinis being found there, and I should not like 

 to give an opinion about their specimens without seeing them, therefore only 

 speak of my own. 



4. Geotrygon albiventer. 



Geotrygon violacea, Lawr., nee Temrn. Ann. Lye. of N. Y., vol. vii. p. 



477. 

 Geotrygon ? Scl. et Salv. P. Z. S. 1864. 



Male. Front pale rosaceous, crown dull brownish violet ; region of the 

 ears to hind neck bluish cinerous ; upper part of back of a rich reddish violet; 

 back, wing coverts and tail dark cinnamon or rufous brown, tinged with vio- 

 let ; the primaries are of a lighter cinnamon color than the tail, with their 

 inner webs dusky near their ends, the other quills are darker, becoming brown- 

 ish next the back ; all the quills and larger wing coverts have their ends 

 margined with light cinnamon, inside of which is a dusky narrow subterminal 

 band ; the under wing coverts are white with their ends blackish brown ; the 

 axillars are blackish brown at the base, remaining half white ; throat, sides, 

 abdomen and under tail coverts pure white ; feathers of thighs brown ending 

 in white : the feathers on the middle of the breast are of a light brownish ash, 

 with their ends pale rufous, the lower part and sides of the breast are of a 

 light pinkish lilac, these seem like new feathers ; and the whole breast in a 

 more mature bird is probably of this color ; it becomes paler as it extends 

 downwards, and gradually merges into the pure white of the abdomen ; bill 

 and legs in the dried specimen brownish yellow. 



Length 9 in. ; wing 5^ ; tail 3| ; bill ; tarsi f. 



Hab. Line of Pan. R. Road, near Lion Hill Station. 



My identification of this species as violacea, Temm., was made from his de- 

 scription and plate, Knip, Pig. t. 29, but I had misgivings as to it's correct- 

 ness. I then was not aware of their being two specimens of that species in 

 the Mus. of the Phil. Acad., which came from the Rivoli Collection. I have 

 since compared my specimen with these and find it quite distinct. 



G. violacea has the crown, back and wings greenish bronze; the upper 

 part of the back violet blue, and the tail and quills of a lighter red than in 

 my species. 



[June, 



