No. 1.] SPEOTYTO CUNDTCOLAATA  HYPOGAA. I2I 
Incidently, I may remark here, that in Sfeotyto the main nerve 
of the leg is the sciatic; the main artery, the sciatic artery ; and 
the main vein, the femoral. 
Nowhere in Garrod’s work do I find a place where he paid any 
especial attention to the arrangement of the plantar tendons in 
the Owls, and he seems to have let this matter rest with his in- 
vestigation of four or five species of diurnal Raptores; and of 
these he says that “the fleror longus hallucts divides into two 
‘moieties opposite the lower end of the tarso-metatarse, one of 
which runs to the hallux. The other part is the representative 
of the vinculum of the above-mentioned birds; it is peculiar, 
however, in that, instead of joining the tendon of the flexor 
pervforans digitorum, before it is distributed to the anterior toes, 
it mostly runs down to blend with the slip which is associated 
with the inner of these (digit 2) only [figures it for 7zxnunculus 
alaudarius|.” 
“In Geranoaétus aguia and in Polyborus, besides the special 
tendon from the hallux-muscle to the second digit, there is a 
broad, thin vinculum present, as in Gallus. In the Accipitres 
Diurne, the arrangement of the tendons, therefore, differs in 
different groups —in Zaza their distribution being quite nor- 
mal, that is, as in the first described ; in Polyborus, Haliaétus, 
Tinnunculus, and Geranoétus, this condition is combined with a 
special tendon to the second digit, which greatly increases its 
power of flexion.” (Col/. Sct. Mem., pp. 293, 294-) 
Now of the Cathatide, he further adds, in the same place, 
that, “the two deep flexors descend beyond the ankle-joint in- 
dependently, as usual; after passing which, generally about one- 
third down the tarso-metatarse, they blend completely, defore 
any slip has been given off. From the conjoined tendon thus 
formed the tendons of distribution spring, four in number, one 
to the hallux, and others to each of the three anteriorly directed 
toes [he here directs attention to his figure of Buceros rhinoceros 
to show it], that to the former being generally separated off 
before any of the others.” (of. czz. p. 294.) 
Upon carefully examining these parts in my specimen of 
Speotyto, I find the arrangement a little different even from any 
of these; in the leg we find both the flexor muscles distinct, and 
their tendons remain distinct to a point about four or five mille- 
metres dclow the hypotarsus, where they not only completely 
