G24 DR. G. HARTLAXJB ON NEW [NoV. 30, 



who informed me that he shot it on the Upper Limpopo or Croco- 

 dile River, about sixty miles in a south-easterly direction from Shos- 

 hong, on the edge of the southern tropic. He was at once struck 

 by its peculiar appearance, and found it so shy and wary of approach 

 that he was a long time in pursuit before he succeeded iu securing it. 



6. On some new Birds discovered and collected by Dr. Emin 

 Bey in Central Africa, between 5° and 2° N. lat., and 31° 

 and 32° E. long. By Dr. Gr. Hartlaub. 



[Eeceived November 18, 1880.] 



(Plate LX.) 



1. Triciiolais fI/Avotorquata, n. sp. 



Supra dilute olivacea, pileo et capitis lateribiis cinereis ; subtus 

 alba, pectore excepto citrino-fiavo, abdomine canescente ; hypo- 

 chondriis et subcaudalibus cinei-ascenti lavatis ; remigibus et 

 rectricibus obsolete fuscis, his, mediis exceptis, limbo apicali 

 albido ; tectricibus minoribus clorso concoloribus ; siibalaribus 

 albido favidoque variis ; rostro plumbeo-fuscescente, pedibus 

 carneis (6)- Lonxj. tola circa 102 mill., rostri a fr. 10, alee 

 .50, caudcB '67, tarsi 18. 

 One specimen obtained on January 12 at "Maguugo." Iris brick- 

 red. 



The generic characters of this species agree in every respect with 

 Heuglin's genus Tricholais (Ornith. N.-O. Afr. i. p. 285) . 2'. elegans, 

 the typical species, differs in its yellow abdomen &c. The colour 

 of the upper parts is in both species the same, alight yellowish olive- 

 green. The lemon-yellow pectoral band is not very circumscript. 

 The white of the underparts is purest on the throat. The dark line 

 through the eye, so conspicuous in Heuglin's figure of T. elegans, 

 is entirely wanting in the new species. 



2. CiSTICOLA HYPOXANTHA, U. Sp. 



Minor, supra in fundo olivaceo-rufescente minus distincte fusco 



longitudinaUter notata, subtus tola unicolor, pallide Jiava ; uro- 



pyyio subrvfescente ; remigibus tertiariis et tectricibus rufe- 



scenti marginatis ; subalaribus albis ; rectricibus fuscis, rufe- 



sceiiti limbutis et ante upicem puUidius rvfescentem obscure adum- 



hratis ; rest ro pallida, culminc obscuro ; pedibus pullidis (cSJ- 



Long, tota vix 100 mill., rostri afr. 8, ala 44, caudce 38, tarsi 20. 



One specimen. " Alagnnso, December II." 



A small typical species which appears to be undescribed. The 



darker longitudinal markings of tlie u])per parts not very conspicuous ; 



underparts of a uniform pale straw-yellow. The pale apical spot 



of the rectrices, as well as the dark portion before it, is more distinct 



on the underside. Wings short, obtuse, subtruncate. Remiges 



3-7 longest and of nearly equal length. Feet rather large. 



