of North-eastern Africa . 181 



We found this species only immediately before and at the 

 commencement of the rainy season^ in the forest-region of Bongo, 

 in Central Africa, where it occurs in pairs in isolated bushes 

 upon clearings densely covered with tall grass. It seems also 

 to like the vicinity of water ; and at the break of day the male 

 ascends like a Lark into the air, and descends again in jerks 

 with a loud cry, something like ^' ter-ter-ter" and a vibrating 

 movement and smiting together of the wings, D. navia, from 

 Senegambia, which I have not been able to compare directly 

 with my birds, has, according to my measurements, a rather 

 shorter bill, narrower at the base, a yellowish mandible, and 

 longer remiges; the wing measured 2" 8'", and the tail 1" 8'". 

 The name originally chosen by me, " Dnjmoica vulida," had pre- 

 viously been employed by Dr. Peters * ; it is therefore now 

 changed to D. jjachyrhyncha. 



26. Drymceca cinerascens, Heugl., J. f. 0. 1867, p. 296. 

 D. semitorques, Id., ibid., 1862, p. 40 (ex parte). 



Statura D. i-uficipitis, at cauda breviore, latiore, minus graduata ; 

 notseo areacjue utrinque pectorali sordide fumoso-cinera^ 

 scentibus, immaculatis, pileo (nee cervice) ex cano rufe- 

 scente ; loris albidis ; macula obsoleta anteoculari fumosa ', 

 alse tectricibus et tertiariis dilute pallide marginatis ; re- 

 migibus fumosis, extus basin versus ex cano rufescente 

 marginatis, intus basin versus albicante limbatis ; uropygio 

 pallide murino, supracaudalibus fumoso-cinerascentibus, 

 vix rufescente lavatis ; rectricibus | medianis dorso con- 

 coloribu.s, apicem versus fuliginoso adumbratis, vix albido 

 marginatis, et" ex toto delicate fasciolatis ; reliquis fu- 

 mosis, infra magis canis, macula latiuscula nigricante 

 ante apicem conspicue album notatis, extima utrinque 

 pogonio exteruo delicate albo marginata ; gastrseo ex fuU 

 vescente sericeo-albo, hypochondriis cano lavatis ; tibialibus 

 rufescente adumbratis ; rostro nigricante, mandibula media 

 albido-cerina ; iride laete helvola ; pedibus rubellis. 

 Long. tot. 4", rostro a fr. 4"'^i"', al. 2" l"'-2" 2'", caud. 



1" 5"'-l" 61'" tars. 8i"'-9|"'. 



Distinguished from D. ruficeps by the very dark- coloured, 



stronger, rather more arched and shorter bill, broader, shorter, 



* [We are not able to refer to Dr. Peters's description. — Ed.] 



K 2 



