. The structure and classification of birds . FIG. 5.—A, LOWER MANDI-BLE OF INDIAN , KUDIMENTARY TONGUE. 7? Trwr-r-r TV P^r FlG- 6.—HEAD OF LoriUS, SHOWING -D, IN PROFILE. m / r< .-mmn\ WITH BRUSH TIP (AFTER GARROD). the taxonomist, except as regards smaller groups. Thusthe Plataleidae have been distinguished from other Herodionesas Lipoglossae. Teeth are not met with in living birds. KOSE, however,has discovered what he believes to be a rudimentary toothband ( Zahnleiste ) in Sterna,1 a discovery which may have This has been recently confirmed by Miss CARLSSON ( Ueber die S
. The structure and classification of birds . FIG. 5.—A, LOWER MANDI-BLE OF INDIAN , KUDIMENTARY TONGUE. 7? Trwr-r-r TV P^r FlG- 6.—HEAD OF LoriUS, SHOWING -D, IN PROFILE. m / r< .-mmn\ WITH BRUSH TIP (AFTER GARROD). the taxonomist, except as regards smaller groups. Thusthe Plataleidae have been distinguished from other Herodionesas Lipoglossae. Teeth are not met with in living birds. KOSE, however,has discovered what he believes to be a rudimentary toothband ( Zahnleiste ) in Sterna,1 a discovery which may have This has been recently confirmed by Miss CARLSSON ( Ueber die Schmelz-leiste bei Sterna hirundo, Anat. Anz xii. 72), who found it to characterise bothjaws. For other embryonic traces of teeth see P. FHAISSE, Uber Ziihne u. Zahn- ALIMENTARY CANAL Il some added significance in view of the possible relationshipto modern birds of the cretaceous Iclithyornis (cf. below).The need for teeth seems to have disappeared with thedevelopment of a horny bill, the replacement of the onestructure by the other being
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1898
