427 
Expedition to the Zambesi River. 
169. Barbatula extoni Layard. 
Adult ? (near Zumbo). Total length (measured in the 
flesh) 4*3 inches, wing 2*3. Bill black ; iris brown ; legs and 
feet black. 
170. Trachyphonus cafer (Vieill.). 
Common. Observed either singly or in pairs. In the 
pairing-season, towards the end of November, the males were 
to be heard constantly in the woods. The song, if it can be 
called one, is uttered from the tops of tall trees, and consists 
of a string of trilling notes that are at first given out very 
softly, sounding somewhat ventriloquial, and remind one 
forcibly of those of the Grasshopper Warbler, then towards 
the finish they become very loud and well-marked, exactly like 
the clicks of a mowing-machine. 
171. Campothera smithi (Malh.). 
Not common. First met with near Zumbo. A female 
obtained on November 23 had sexual organs in breeding 
condition. 
Adult $ . Total length (measured in the flesh) 7*43 inches, 
wing 4"5. Iris light claret-colour; legs and feet brownish 
green. 
172. Campothera bennetti (Smith). 
Scarce. Adult ? . (near Kafue river, Dec. 27). Total 
length (measured in the flesh) 8*2 inches, wing 4*5, culmen 1, 
tail 3 # 1. Iris reddish brown. 
173. Dendropicus cardinalis (Gm.). 
Common. Our specimens agree in measurements and 
size with the Nyasaland birds from Zomba, Itawa, and 
Songwe. 
The range of this species is from Cape Colony to the Rovuma 
river and Songwe on the east, on the west through Great 
Namaqualand, Damaraland, and in Angola north to the 
Quanza river. 
174. Thripias namaquus (Licht.f. ^ 
The common Woodpecker of the Zambesi region. 
When working the woods hardly a day passed without our 
