804 uuLLETiisr r)0, united states national museum. 



retrice.s. C. vlolaceus (type of Coronideas Cabanis) is .structurally 

 quite identical with C. cyanojoogon, C. cayantis^ etc., but lacks an}- 

 white on the tail, has no blue or white markina^s on the head, and has 

 the under parts of the body grayish violet instead of white or pale 

 yellow. C. eyanoinelas agrees with 61 ■ololaceuti in the respects men- 

 tioned, but has the crest scarcel}^ if at all developed, and has no light- 

 colored nuchal area. It will be seen, therefore, that any further sub- 

 division of the genus would necessitate a considerable addition to the 

 number of genera. 



Pica ci£Tulea Temminck (= Corvus azureux Vieillot) is, however, so 

 different in its conspicuously exposed nostrils and differently con- 

 structed crest that its removal from Oyanocorax seems to me to be 

 quite necessary. 



CYANOCORAX AFFINIS ZELEDONI Ridgway. 

 TALAMANCA JAY. 



Similar to C. a. ajJitilH^" \mt decidedly brighter colored, with under 

 parts of the body and tips of rectrices light creamy yellow instead of 

 white or yellowish white. 



Adtdti< {f<e.cef< (dlJie). — Head (except occiput), neck (except hind- 

 neck), and chest uniform black; a conspicuous superciliarv patch, a 

 smaller patch immediately beneath posterior half of e^^e, and an 

 elongated patch on anterior and upper portion of malar region, cam- 

 panula l)lue; occiput and nape duller and more purplish blue; lower 

 hindneck, back, and rump plain dull heliotrope purple or dull lirown- 

 ish violet-blue, the scapulars similar l)ut rather darker; wings, upper 

 tail- coverts, and tail dull ^•iolet-blue or plum purple, the latter 

 broadly tipped with pale creamy 3^ellow or yellowish white; under 

 parts of body light creamy yellow; bill, legs, and feet black; iris 

 sulphur-yellow.'' 



Adult iii(de. — Length (skins). 345.5-362 (354); wing, 158-167.5 

 (161.5); tail, 159-169 (163); bill from nostril, 20.5-23 (21.5); depth 

 of bill at nostrils, 12.5-15 (14); farsus, 48.5-50 (49.5); middle toe, 

 30-33 (31).'- 



Advlf /^//w/<'.— Length (skins), 305-330 (319.5); wing, 156-157.5 

 (157); tail, 147.5-151 (149.5); bill from nostril, 20.5-21.5 (21); depth 

 of bill at nostrils. 13; tarsus, 49.5-51.5 (50): middle toe (one specimen). 

 30.5.'' 



u Cyanocorax uffinis Pelzeln, Sitz. Ak. AYien, xx, 1856, 164. — Cyanocorax sdateri 

 Heine, Journ. fiirOrn., viii, Mar., 1860, 115. 

 ''Zeledon, manuscript. 

 '" Four specimens. 

 '^ Three si)ecimons. 



