5l8 BIRDS OF THE REPUBLIC OF PANAMA PART 2 



frantzii in the notching on the bill has closer resemblance to Ptero- 

 glossus sanguineus of western Colombia and northwestern Ecuador, 

 and to P. erythropygius of western Ecuador. These, however, differ in 

 lack of the brown semicollar on the hindneck. 



The species was named for Dr. Alexander von Frantzius who made 

 extensive ornithological collections in Costa Rica. 



SELENIDERA SPECTABILIS Cassin: Cassin's Aragari, Pichilingo 



Prieto 



Figure 67 



Selenidera spectabilis Cassin, Proc. Acad. Nat. Sci. Philadelphia, vol. 9, 1857, 

 p. 214. (Cocuyos de Veragua, Caribbean slope of Veraguas, Panama.) 



In slender form like the collared aracari, but slightly smaller ; under 

 surface from throat to abdomen black, with a prominent yellow stripe 

 on the flanks. 



Description. — Length 365-395 mm. Rump and upper tail coverts 

 concolor with the back; tail not longer than the wing; cutting edge 

 of maxilla notched lightly basally, heavily toward tip. Adult male, 

 auricular feathers considerably elongated, yellow ; crown, hindneck, 

 and rest of side of head deep black; back, scapulars, wing coverts, 

 rump, and upper tail coverts olive-green ; tail bluish slate, with shafts 

 black, and outer webs at base edged with dull olive-green ; primaries 

 and secondaries fuscous-black, with outer webs except in outermost 

 primaries largely olive-green; lower surface from throat to upper 

 abdomen black ; a broad stripe of orange-yellow on flanks ; longer 

 under tail coverts chestnut, the shorter ones bright red ; tibia chestnut ; 

 under surface of tail black ; under wing coverts and basal area of pri- 

 maries and secondaries rather dull yellow. 



Adult female, crown and hindneck chestnut; auricular feathers 

 black, only slightly elongated ; otherwise like male. 



An adult male taken on the lower Rio Boqueron, on February 18, 

 1961, had the iris deep red; bare skin above eye light blue, becoming 

 duller forward to the base of the bill ; narrow band below eye, and 

 entire bare area behind, clear light green, shading to lemon yellow on 

 the lower part of this area forward to base of bill ; narrow margin of 

 upper and lower eyelids dark green ; inside of mouth reddish orange; 

 base of maxilla in front of nostrils dark yellow, shading to dull, light 

 green on culmen and sides of maxilla ; base of maxilla, sides to beyond 

 the third notch from the tip, and whole of mandible deep brownish 

 black; notches on edge of maxilla tipped lightly with horn color; 

 tarsus and toes light blue ; claws black. 



