. The Cambridge natural history. Zoology. XVII SPECIES OF GIBBON 571 compared with other Anthropoids is the fact of the large size of the canines, which are of equal or nearly equal size in the two sexes. The molars on the other hand have been particularly. Fio. 272.—Hoolock. Hylobates hoolock. x J. compared to those of Man. The brain is simpler than in the higher form's. But it is not clear that this may not be a case of diminished complexity of convolution going hand in hand with smallness of size. The Gibbons range through south-eastern from Assam and Burmah to Hainan. The number of s
. The Cambridge natural history. Zoology. XVII SPECIES OF GIBBON 571 compared with other Anthropoids is the fact of the large size of the canines, which are of equal or nearly equal size in the two sexes. The molars on the other hand have been particularly. Fio. 272.—Hoolock. Hylobates hoolock. x J. compared to those of Man. The brain is simpler than in the higher form's. But it is not clear that this may not be a case of diminished complexity of convolution going hand in hand with smallness of size. The Gibbons range through south-eastern from Assam and Burmah to Hainan. The number of species is a little doubtful. It is clear that in the first place we may distinguish the Siamang, IT. synclactylus, which indeed some regard as a separate genus. It is mainly to be defined by the syndactylous character of the second and third toes; they are united by skin as far as the last joint. The Hainan species, H. hainamts, is probably distinct, and the following names have been given to various other species or races, viz. H. agilis, H. huciscus, H. leuco- genys, H. lar, H. hoolock. These animals can walk erect; and when they do so, the big toe is separated as in unsophisticated or at least unbooted man. The voice is well known to be loud,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. ed. [London, Macmillan and Co. , Limited; New York, The Macmillan Company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
