318 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



A specimen from Salvador in the National Museum collection agrees 

 in color with Guatemalan specimens.] 



Garrulus {Cyanocorax) melanocyaneus Haetlaub, Rev. ZooL, 1844, 215 (Guate- 

 mala) . 



C\_yanolyca\ melanocyanea Cabanis, Mus. Hein., i, Oct., 1851, 223, footnote. 



Cyanolyca melanocyanea Salvin and Godman, Biol. Centr.-Am., Aves, i, 1887, 498 

 (Dueilas, Volcan de Fuego up to 8,000 ft. , Santa Maria, below Quezaltenango, 

 San Ger6nimp, Tactic, and Coban, Guatemala; bet. Seguatepeque and Tau- 

 levi, Honduras; Chontales, Nicaragua). — Lantz, Trans. Kans. Ac. Sci. for 

 1896-97 (1899), 222 (Palin and Amatitlan, Guatemala). 



ICyanodtta'] melanocyaneus Bonapaete, Consp. Av., i, 1850, 378 (Guatemald). 



Cyanocitta melanocyanea Sclatee and Salvin, Ibis, 1859, 21, pi. 5, fig. 6 (Duenas, 

 Guatemala; descr. eggs). — Sclatee, Cat. Am. Birds, 1862, 144 (Guatemala); 

 Ibis, 1873, 373 (Chontales, Nicaragua). — Owen, Ibis, 1861, 63 (San Geronimo, 

 Guatemala). — Boucaed, Liste Ois. Gnat., 1878, 37. 



[Cyanocitta'] melanocyanea Sclatee and Salvin, Nom. Av. Neotr., 1873, .39 

 (Guatemala). 



Cyanocorax melanocyaneus Sclatee, Proc. Zool. Soc. Lond., 1858, 359 (between 

 Seguatepeque and Taulevi, Honduras). — Taylor, Ibis, 1860, 112 (Hon- 

 duras). — ScHLEGEL, Mus. Pays-Bas, Coraces, 1867, 45 ("Colombia;" Guate- 

 mala?). 



[Cyanurus] melanocyaneus Gray, Hand-list, ii, 1870, 4, no. 6102 (Guatemala). 



Xanthura melanocyanea Shaepe, Cat. Birds Brit. Mus., iii, 1877, 134, pi. 6 (Coban, 

 Guatemala). 



Cissolopha melanocyanea Stone, Proc. Ac. Nat. Sci. Phila., 1891, 444 (Coban). 



Genus CYANOLTCA Cabanis. 



Oyanolycaa Cabanis, Mus. Hein., i, Oct., 1851, 223. (Type, pyanocorax armUlatus 

 Gray and Mitchell.) 



Neotropical Garrulinse with nasal tufts and sides of head black, con- 

 spicuously contrasted with the color (blue or lavender) of the pileum 

 or throat, and with the frontal feathers more or less erect and bristly. 



NidA/flcation. — (Unknown.) 



Bcmge. — Southeastern Mexico to Peru, Bolivia, and Venezuela. 

 (Nine species.) 



The above imperfect diagnosis characterizes a group of Neotropical 

 jays which are obviously related to one another more closely than to 

 any others, the very considerable difference between certain specific 

 types rendering a more satisfactory diagnosis difficult. It may be 

 found necessary to subdivide the group and restrict the generic name 

 Cyanolyca to C. armillata and its nearer allies {merldana, (juindiuna, 

 turcosa., jolysea, and viridicyanea); but in this case it would be neces- 

 sary to make three additional genera for the four Central American 

 species, only two of which {C. ornata and 0. cucullata) are closely 

 allied. 



Cyanolyca is related to Aphelocoma through two small species of 

 southern Mexico and Guatemala (C. naiia and C. jntmilo), which with 

 the coloration of Cyanolyca have the more slender form of Aplidocoma. 



""Von Kvavsoi, blau, und AiVo;, Dohle." 



