. The Emu . tire cranium of this remarkablerepresentative of the Parrot tribe. The Hyoid Arches (fig. 10, Plate VI.)—This part of the skeletonhas received considerable attention at the hands of not a fewornithologists. Some of this Hterature is cited in Beddardsexcellent work, On the Structure and Classification of Birds,where he reproduces for us many of Mivarts figures of the bonyparts of the tongues of Parrots (pp. 265-267). Nestor appears to have the morphology of the various bones tosome extent in agreement with what we find in such a species asLorhis flavopalliattis. There is one very un
. The Emu . tire cranium of this remarkablerepresentative of the Parrot tribe. The Hyoid Arches (fig. 10, Plate VI.)—This part of the skeletonhas received considerable attention at the hands of not a fewornithologists. Some of this Hterature is cited in Beddardsexcellent work, On the Structure and Classification of Birds,where he reproduces for us many of Mivarts figures of the bonyparts of the tongues of Parrots (pp. 265-267). Nestor appears to have the morphology of the various bones tosome extent in agreement with what we find in such a species asLorhis flavopalliattis. There is one very unusual departure,however, for the Kea has an entoglossum quite different from thatof any other Parrot. The twin moieties are very elongate anddrawn close together, which is not surprising, inasmuch as the faceof the Kea is more extended anteriorly, and the mandiblesnarrower, than is at all usual among the Psittaci. The hasihyal is elongate, being about twice as broad posteriorly The Emu, Vol. XVIII PLATE VI. ^° i^il^^^l Shufeldt, Skeleton of Kea Parrot (Nestor notabilis). 3^ as at its anterior end, where an enlargement exists bearing anarticular surface distally, with a minute underlapping lip forarticulation with the united entoglossum. Posteriorly it isproduced mesiad as the iirohyal—a very slender rodlet aboutfive millimeters in length. At the middle of the basihyal, dorsad, there is to be observed ascroll-like, osseous parahyal process, which practically agrees withwhat we find in the skeleton of the tongue in some of the Lories,as, for example, Lorins flavopalliatiis, as figured by Mivart andrepublished by Beddard {loc. cit., p. 266). The parahyal processupon either side is produced forwards on the dorsal aspect of thebasihyal as an elevated, thin, osseous plate, to meet the fellowof the opposite side anteriorly, and co-ossify with it. At thispoint it is a thin, sharp, bony platelet, directed to the front,standing well above the basihyal and not in contact with it. The
Size: 1256px × 1989px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirdspe, bookyear1901
