Skull, head skin. Sex: Female. Locality: Chittagong. Collected by: Zoological Society of London. In Natural History Museum, London, United Kingdom. Catalogue number: 1901.1.22.1
Skull, head skin. Sex: Female. Locality: Chittagong. Collected by: Zoological Society of London. In Natural History Museum, London, United Kingdom. Catalogue number: 1901.1.22.1
Skull, head skin. Sex: Female. Locality: Chittagong. Collected by: Zoological Society of London. In Natural History Museum, London, United Kingdom. Catalogue number: 1901.1.22.1
R.lasiotis. In the first place, with regard to the external characters of colour and hair development, a comparison of the head-skin of R. lasiotis with the two specimens in the Museum of 'Ceratorhinus niger' leads me to the conclusion that the differences described were mainly due to age. For it will be remembered that the 'C. niger' (that is to say the specimen determined by Sclater as sumatrensis and used by him for his comparison with lasiotis) was very old, while the type of lasiotis was then quite young. In its old age, the latter has become practically quite like the former, for the tufts on the ears do not exceed l ? -2 inches in length, and are in no way noticeably different from those of the Malaccan specimen. In fact, Dr. Anderson's supposition (P.Z.S. 1872, p. 130) that the tufts on the ears might wear off with age, seems to me entirely confirmed by the evidence, so far as can be judged from a menagerie specimen.
Type of R. lasiotis. The following are its measurements, given in inches for comparison with those published by Sir W. Flower in 1878: Length from occipital crest to end of nasals, in straight line 23 5/8. With tape over curve of nasals 24.5 ; greatest zygomatic breadth 12 7/8 ; interorbital breadth 8. [Teeth and palate too much diseased for measurement..]
In conjunction with Mr. Lydekker, I have compared the fine skull in the Museum of R. platyrhinus, hitherto usually considered related to the simus group, and after careful consideration we have come to the conclusion advocated by Osborn, that, in spite of its tooth characters, it is really most nearly allied to the sumatrensis group.
R. lasiotis. Nor is there in colour any difference worthy of note, that described by Selater having apparently disappeared with advancing age.
R.lasiotis. In the first place, with regard to the external characters of colour and hair development, a comparison of the head-skin of R. lasiotis with the two specimens in the Museum of 'Ceratorhinus niger' leads me to the conclusion that the differences described were mainly due to age. For it will be remembered that the 'C. niger' (that is to say the specimen determined by Sclater as sumatrensis and used by him for his comparison with lasiotis) was very old, while the type of lasiotis was then quite young. In its old age, the latter has become practically quite like the former, for the tufts on the ears do not exceed l ? -2 inches in length, and are in no way noticeably different from those of the Malaccan specimen. In fact, Dr. Anderson's supposition (P.Z.S. 1872, p. 130) that the tufts on the ears might wear off with age, seems to me entirely confirmed by the evidence, so far as can be judged from a menagerie specimen.
