114 



Closnly resembles C. aurita, Temm., from which it differs in want- 

 ing black spots to the wings, in having a less rounded tail without 

 the black band, and in the wing coverts being rufous, and not grey. 



32. Ortyx Montezumve, Vigors, Jard. and Selby. 111. Orn. fasc. 

 9. t. 1 26. O. cinereo-violacea ; plumis nigrofasciatis, secimdum 

 rachim cinnamomeo lineatis ; tectricibus alarum maculis rotun- 

 datis nigris : subtus nigra maculis perlatis albis ; abdomine me- 

 dio longitudinaliter castaneo. 



In our specimens, perhaps arising from immaturity, the throat is 

 whitish, and not black. 



Fcem. Tectricibus alarum nuiculis non rotundatis atfasciformibus; 

 subtus Icete vinacea, nigro signata, maculis albis obsoletis. 



Codarniz, Mexic. 



Among the numerous Ortyges lately discovered in Mexico, and 

 especially among the crestless species, the Ortyx MontezvmiE, of 

 which we now, for the first time, introduce the female to the notice 

 of naturalists, is the most handsome. 



33. Egretta Leuce, Nob. Ardea leuce, HI. Ctanza blanca, 

 Mexic. 



34. Rallus Chiricote, Vieill. Gallina de Montensoma, Mexic. 



35. Parra Jacana, L. P. purpureo-castanea ; capite, collo cor- 

 poreque subtus nigro-violaceis ; remigibus Jlavo-olivaceis riigro 

 marginatis ; spina alarum robustd Jiavd. 



Jaqnanar at Vera Cruz. Buff. PI. Enl. 272. 

 All the Mexican specimens I have seen are of a much darker tinge 

 and of a larger size than the Brazilians. 



II. Having lately, through the kindness of Colonel Velasquez de 

 Leon, had an opportunity of examining a collection of birds, formed 

 by him during a fortnight's scientific tour in Guatamala, 1 think it 

 desirable to give the Society a list of the known species contained in 

 it, with concise descriptions of those birds which appear to me to be 

 new. I hope they may prove not uninteresting to the naturalist, 

 for whom that part of Central America possesses attractions not in- 

 ferior to those of any other country. 



1. Herpetotheres CACHiNNANS, Vieill. H. alb'us, nigra coro- 

 ■natus ; dorso alisque fuscis, remigibus interne rufo fasciatis ; 

 rectricibus albo nigroque fasciatis. 



Falco cachinnans. Lath. Macagua ricaneur, D'Azara. 



2. BuTEo. A species which I am unwilling to give a name to, 

 owing to the immature state of the only specimen I have seen. 



It is of an ashy brown colour, with the vent feathers whitish, 

 banded with rusty. The wings reach a little beyond the middle of 

 the tail ; the primaries are rusty red, with black bands except at the 

 tip. The tail-feathers ashy, with four wide black bands. 



3. Prionites Momotus. P. viridis, subtus fulvescens ; pileo 



