Il8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I50 



Two sets of 3 eggs each of C. c. cochlearius in the U. S. National 

 Museum, collected by G. D. Smooker, on July 14 and August 5, 1935, 

 on the Caroni River, Trinidad, are almost white, tinged weakly with 

 pale glaucous blue, with a few very faint spots and irregular markings 

 of cinnamon. They vary from subelliptical to long subelliptical in 

 shape and show the following measurements: 49.9x35.5, 50.0x35.3, 

 and 52.5x35.7; 46.9x36.4, 50.5x37.4, and 53.5x36.6 mm. 



The species is one that soon disappears as the countryside is de- 

 veloped for increasing human occupancy. 



COCHLEARIUS COCHLEARIUS PANAMENSIS Griscom 



Cochlearius seledoni panamensis Griscom, Amer. Mus. Nov. no. 235, Nov. 18, 

 1926, p. 11, (Corozal, Canal Zone, Panama.) 



Characters. — Adult, darker throughout than C. c. cochlearius, with 

 the side of the head and neck and the back and wings dark gray; 

 lower f oreneck and breast light grayish brown. 



Immature, much darker above and below than the same stage in 

 typical cochlearius. 



Measurements. — Males (4 from Panama), wing 266-282 (275), 

 tail 95.7-107.8 (102.1), culmen from base 75.5-81.6 (78.9), tarsus 

 77.0-81.5 (78.5) mm. 



Females (4 from Panama and Choco, Colombia), wing 260-269 

 (265), tail 94.4-104.2 (97.6), culmen from base 72.5-81.0 (75.9), 

 tarsus 65.0-76.8 (72.9) mm. 



Resident. Found in the tropical lowlands throughout the Repub- 

 lic, except on the Rio Jaque, southwestern Darien. 



These birds must occur along the lower river courses in Chiriqui 

 and the Pacific side of Veraguas, as they range into southwestern 

 Costa Rica, but the only definite report of them in that area to date 

 is the ancient record of one taken by Arce at Mina de Chorcha, east 

 of David, Chiriqui (Salvin, Proc. Zool. Soc. London, 1870, p. 218). 

 In the Azuero Peninsula I found them along the Rio Escota near 

 Santa Maria, and picked up a weather worn skull at Alvina, in 

 Herrera. Farther south, near tidewater on the Rio Caldera back of 

 Punta Mala, in March 1957, I located a colony of 20 to 30, that had 

 young fully grown but not long out of the nest. Some of the 

 country people here, who called these birds hocacho, had a supersti- 

 tion that they were evil because of their ugly appearance due to the 

 broad bill. In Bocas del Toro they are recorded from Changuinola 

 and Almirante (Peters, Bull. Mus. Comp. Zool., vol. 71, 1931, p. 

 305), and in the swamps at Boca del Drago. Farther east I found 

 one at Chilar, western Colon, March 11, 1952, and there are records 



