338 BULLETIN 15 3, UNITED STATES NATIONAL MUSEUM 



bill green, yellow on basal half of mandible and on sides of maxilla 

 at base ; feet and claws brownish flesh color. 



The narina trogon occurs over most of Africa south of the Sahara, 

 and has been differentiated into three currently recognized forms. 

 I have examined a series of 25 skins representing two of the three 

 subspecies (of constantia no material has been available). The 

 ranges and characters of the races are as follows : 



1. A. n. narina. — Eritrea, northern Somaliland, Ethiopia, the adja- 

 cent parts of the Anglo-Egyptian Sudan west to the Nile, and south 

 through the drainage area of the Bhar el Ghazal to the Ubangi River, 

 south to the northern boundary of the Congo Forest ; south through 

 northern and eastern Uganda, Kenya Colony, Tanganyika Terri- 

 tory, the Katanga, and Angola to the Cape Province, omitting the 

 Kalahari region, Ovampoland, Namaqualand, Damaraland, the 

 Southwest African Protectorate, the Orange Free State, and the 

 western part of the Cape Province ; in forested areas only throughout 

 its range. 



2. A. n. hrachyurimi. — The equatorial rain forest; from southern 

 Cameroon and Spanish Guinea eastward through the Belgian Congo 

 to the Buddu Kingdom in Uganda, the Kivu country and the west 

 l)ank of the northern part of Lake Tanganyika. This race is similar 

 to the typical one but smaller (according to Chapin,^"* the wing 

 measurements of 'brachyumin are 122-136 (male), 122-136 (female) 

 as against 129-145 (male) and 128-144 millimeters (female) in 

 noHna) ; also the adult female lacks the cinnamon wash on the 

 breast found in naHnoi, but has this area gray with greenish reflec- 

 tions. In his review of the races of this trogon, Chapin ^^ definitely 

 shows the range of hrachyuruin to extend as far east as Entebbe, 

 Uganda. Van Someren °^ records specimens from Bugoma, Budongo, 

 and other western Uganda forests, but writes that he can not detect 

 any differences between males from east Africa and Uganda, and 

 those from the type locality in South Africa. He seems not to have 

 compared East African birds with others from Uganda, however. 



3. A. n. constantia. — Liberia to Calabar. Similar to hrachyuruni 

 in size, but said to lack the bronze-green edges on the greater upper 

 secondary coverts and on the secondaries ; the male with these feathers 

 lighter, the whitish vermiculations broader and more numerous than 

 in hrachyw^'m. 



The series available for study illustrates the sequence of plumages 

 of this bird. 



The Juvenal plumage, which is alike in both sexes is as follows: 

 Upper parts : Head, nape, scapulars, interscapulars, back, rump, and 



" Amer. Mus. Nov., no. 50, 1923, pp. .3-4. 

 ^^ Nov. Zool., vol. 29, 1922, p. 72. 



