(GENERA AVIUM 
PUBLISHED BY 
P. WYTSMAN, Zooctocist 
SPECIMEN OF LETTERPRESS 
7, VERTENEUIL & L. DESMET,: Epirors 

BRUSSELS (Brtcrium) 
SPECIMEN PLATE POST FREE ON DEMAND 
FAM. EURYLEMID4 
BY Ernst HARTERT 
WITH I COLOURED PLATE 
structure of the bill and feet, the Eurylemide were mostly arranged among the 
« Picariae » or « Coractiformes », generally near Coracias, because the bill of the 

>) Eurylenide has a great outward resemblance to that of a Coracias. As long ago 
as 1840, however, attention has been drawn to the fact that the pterylography was that of 
Passerine birds, Blanchard declared that the sternum was more Passerine, Garrod and Forbes 
have studied the palate, trachea and structure of the foot and pronounced their main features as 
Passerine, Kutter called attention to the nidology and oology, which are also Passerine. It is 
therefore now universally admitted that the Eurylemide are Passerine birds, though abnormal 
and best placed at the top of that order, as a distinct group. 
The sternum of the Eurvlemid@, although the manubrium sterni is not forked, differs 
widely from that of Coracias and all its main features are truly Passerine; the palate is zegitho- 
egnathous, the nasals holorhinal; the dorsal vertebree are heterocoelous. The flexor longus 
hallucis leads to the hallux and sends down a tendon to the flexor perforans digitorum, which 
leads to the three front-digits. The hallux is thus incapable of independant action. The oil- 
gland is small and nude. 
The bill is very wide, flat, but higher and distinctly ridged in the Calyptomenine, the nasals 
basal, round, open, either quite exposed or overgrown with bristly feathers, or lineiform. The 
metatarsus is sometimes covered in front with some large, very distinctly separated scutellee 
while in other forms the scutellae are mostly fused, thus forming a long lamina, divided only 
on the lower end, near the toes. The back of the metatarsus is somewhat rugose, covered with 
) 
