APHELOCOMA. 495 



Aphelocoma unicolor, Sharpe, Cat. B. Brit. Mus, iii. p. 118'. 

 Cyanocorax concolor, Cass. Pr. Ac. Phil. 1848, pp. 26 ", 90". 



Saturate azurea, unicolor, alls nigricantibns, extus dorsi colore limbatis, loris eaernleo-nigris, alis et canda 

 nigris. Long, tota 12-5, alae 6-3, caudse 6-4, rostri a rictu 1-5, tarsi 1-5. (Descr. ezempl. ex Jalapa, 

 Mexico. Mus. nostr.) 



Hob. Mexico 16 10, valley of Mexico {White''), Puebla {Pease ^^), Jalapa {Sailed 

 de Oca^). — Guatemala, Totonicapam, Quiche, Chilasco {0. 8.&F. D. G.^). 



This species appears to be somewhat locally distributed in the moTintains of Southern 

 Mexico, Mr. Pease states that it is common in the hills bordering on the plains of 

 Puebla, at Pinal, and the mountains skirting the valley of Mexico, where it remains all 

 the year ". Though included in both Salle's and de Oca's collections made in the 

 vicinity of Jalapa, no mention is made of this species by Sumichrast as an inhabitant of 

 the State of Vera Cruz, which is somewhat strange, and leads us to suspect that some 

 of the Jays at least of his list may have been incorrectly determined. In Guatemala 

 A. tmicolor is a very local species ; we first met with it in the upland forests on the 

 ridge which divides the plain of Salama from the valley of the Motagua, and again 

 in the district of Chilasco which overhangs the valley of the Polochic, at elevations 

 varying from 4000 to 6000 feet. We subsequently found it on the ridge between 

 Quiche and Totonicapam, at elevations reaching as high as 10,000 feet. We are not 

 aware that it ever occurs in collections made near Coban, and we saw no sign of it in 

 the upland forests of the volcanos. A. tmicolor in its habits resembles its congeners. 

 It lives in pine-woods, associating in flocks of five or six individuals. 



y. Corpus suhtus cceruleum, gula coeruleo-albida. 

 4. Aphelocoma nana. 



Cyanocorax nanus, DuBus, Bull. Ac. Brax. xiv. pt. 2, p. 103'; Sol. P. Z. S. 1857, p. 204'; Scl. 



P. Z. S. 1859, p. 365 \ 

 Cyanocitta nanus, Bp. Consp. Av. i. p. 378*; Scl. P. Z. S. 1859, p. 381'; Sumichrast, Mem. Boat, 



Soc.N. H. i. p. 554'. 

 Aphelocoma nana, Sharpe, Cat. B. Brit. Mus. iii. p. 118''. 



Saturate azurea, subtus sordidior ; alis et cauda extus concoloribus ; pileo cyaneo tincfco ; fronte et superciliis 

 indistinctis magis cane'scentibus ; oculorum ambitu et capitis lateribus nigris ; gula tota albida caeruleo vix 

 tincta. Long, tota 8-1, alse 4-1, caud« 4-0, rostri a rictu 1-0, tarsi 1-2. (Descr. exempl. ex Jalapa, 

 Mexico. Mus. nostr.) 



Hob. Mexico i ^ alpine region of Vera Cruz {Svmichrast ^), Jalapa {Salle ^, de Oca ^), 

 Cordova '^, Llano Verde {Boucard ^), near the city of Mexico {Mus. nostr.). 



According to Sumichrast, this species is a native of the alpine region of Vera Cruz, that 

 is to say, between 5000 and 11,500 feet above the sea, where it occurs with several other 

 Jays, such as Cyanocitta coronata, but he gives no special account of its habits. Other 

 <jollector8 have also met with it in this portion of Mexico ; but it would appear, from 



