. The structure and classification of birds . nt, which isattached to head of metacarpal, The tendon of insertion ofthe tibialis anticus is divided; in Pulsatrix I found it tobe trifid at insertion, and even the muscle itself was dividedinto two for a short distance. The deep flexor tendons are of type I, In Ketupaceylonensis the two tendons blend a quarter of the way downthe tarso-metatarsus ; - though blejided the fibres can berecognised, and it may be seen that those of flexor hallucismainly supply digits I., II., a small part only to com-mon tendon. - Small Int Large Int. CsEca Ins
. The structure and classification of birds . nt, which isattached to head of metacarpal, The tendon of insertion ofthe tibialis anticus is divided; in Pulsatrix I found it tobe trifid at insertion, and even the muscle itself was dividedinto two for a short distance. The deep flexor tendons are of type I, In Ketupaceylonensis the two tendons blend a quarter of the way downthe tarso-metatarsus ; - though blejided the fibres can berecognised, and it may be seen that those of flexor hallucismainly supply digits I., II., a small part only to com-mon tendon. - Small Int Large Int. CsEca Ins. —■ , 103. Ins. Asio otus .... 20 2-5 Syrnium aluco 22 2 .3-5 „ nebulosum 25 2 3 Bubo ignavus 40 2-25 4-5 „ virginianus . . 34-5 3-5 ^■8 „ dapensis 30-25 2-8 Ketupa javanensis 24 1-75 4 „ ceylonensis 30 i 3-5 3-5, B25 Athene nootua .... 14 1 1 2-5 „ passerina . 14 1 2 Pulsatrix torquataSpeotyto ounioularia 21 ■ , 2 2-5 15 2 Nyotea nivea .... 42 4 Surnia funerea .... 16-5 15 2 Gymnoglaux nudipes . 9-9 2-2 1-4 STRIGES / \ The colic caeca are always (fig. 125) dilated at the blindend. The liver lobes are subequal, and the gall bladderappears to be always present.* The skull of the owls ^ shows some differences in Strixfrom the characters which distinguish the majority of thegroup. In Strix the skull is elongate, the proportions being inStrix flammea 66 length : 36 _ _ breadth. In another species{Strix sp. inc.) 62 : 37-5. On the other hand in otherowls the differences betweebreadth and length show grdually progressive series, ciminating in Speotyto cunialaria, in which the proportioiare nearly equal, viz. 38 : skull of Strix furtherdiffers from that of other owlsin the swollen character ofthe prefrontal processes,which are thin, almost paper-like sheets of bone in otherowls. The interorbital septumof Strix is thick, while in theremaining genera it is reducedto a thin dividing lamina, as isthe case with most birds. Theskull characters of the genusPho
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1898
