the Subat and Baro Rivers. 605 
verditer-blue feathers over the lores and bordering the black 
cheeks and ear-coverts fairly well-marked. The specimens 
collected by Lord Lovat on the Blue Nile and by Emin at 
Langomeri are similar and should also be referred to this form, 
if it is kept separate from M. bullocki; but the fact is that 
certain West-African specimens, such as an example in the 
British Museum procured by Moloney on the Gambia, have 
the cheeks and ear-coverts bordered below with bluish-green 
and cannot be separated from M. frenatus. 
88. Mrrops ViRIDIS. 
Merops viridis Linn. ; Grant, p. 430; Butler, p. 351. 
Merops viridissimus Swains. ; Reich. ii. p. 326 (1902). 
a-e. 6 2. Khartum, January 7th & 11th. 
f- &- Renk, January 21st. 
- g. &. Moradar, February Ist. 
h. 3. Polkom, April 5th. 
in. 6 2. KElea, April 4th & 7th. 
o. 6. Lake Tinero, April 6th. 
The colour of the throat in the above-mentioned specimens 
varies from green and yellowish green to yellow. 
89. MERoPs ALBICOLLIS. 
Merops albicollis Vieill.; Grant, p. 431; Butler, p. 851. 
Aerops albicollis Reich. ii. p. 317 (1902); Neumann, 
1905, p. 193. 
a-c. 2. Kaig, March 38rd & 4th. 
d. 9. lake Tinero, March 27th. 
90. Merors Nusicvus. 
Merops nubicus Grant, p. 431; Reich. ii. p. 829 (1902) ; 
Butler, p. 352; Neumann, 1905, p. 193. 
a,b. 8 2. Renk, January 29th. 
c-o. 6. Elea, March 26th and April 7th. 
p-s. 6 @. Lake Tinero, 6th April. 
91. DicrocERcUS FURCATUS. 
Dicrocercus furcatus (Stanl.); Sharpe, Cat. Birds B. M. 
Xvil. p. 42 (1892); Reich. i. p. 316 (1902). 
