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Show 1018 DR. J. E. GRAY ON THE RHINOCEROTIDAE. [Dec. 12, horn, which is always well marked in the adult skull of that species. It is also distinguished from that species, as it is from R. unicornis and R. javanicus, by the convexity of the zygomatic arch and the size of the cavity for the temporal muscles. It has been suggested that this skull may have belonged to an Indian Rhinoceros that had been kept in a menagerie, and so very poorly fed that it never arrived at its full growth. The skull shows no sign of disease of any kind; the teeth are well worn down, as if it had had abundant food. Starvation is not likely to produce any such change in the proportions of the parts as this skull presents, when it is compared with the skull of the adult R. unicornis, or even when compared with the skull of a young R. unicornis of nearly the same size. Starvation is not likely to have decreased the growth, and at the same time to have extended the size and thickness of the temporal muscles, which is so characteristic of this interesting species. This skull having formed part of the collection of Sir Stamford Raffles renders it probable that the animal w*as a native of Sumatra. Sir Stamford had in his collection a few specimens from other localities- some obtained from Singapore, that being the general entre-port for the productions of the Malay peninsula and islands. There being in this collection only the upper jaw preserved, goes far to prove that it is not the skull of a menagerie specimen as has been suggested. The skull has no character in common with the species to which Professor Owen has referred it, except its small size and probable habitat. It is to be regretted that, as well as writing a technical description of it, describing what every one can see in the specimen, he did not give more particulars of its history, and show by comparison the peculiarity of the skull as compared with others in the collection ; but this would have required careful study. The want of more accurate details of the origin and history of the specimens is the general defect of this series of catalogues. Sir Stamford Raffles observes, " There is another animal in the forests of Sumatra never yet noticed, which in size and character nearly resembles the Rhinoceros, and which is said to bear a single horn. The animal is distinguished by having a narrow whitish belt encircling the body, and is known to the natives of the interior by the name of Tennu. It has been seen at several places ; and, the description given of it by several persons unconnected with each other corresponding generally, no doubt can be entertained of the existence of such an animal" (see Linn. Trans, xiii. 269; Blyth, /. c. 164). I have little doubt that the skull here described is that of the Tennu. B. The forehead and nose subcylindrical, rounded on the sides. Rhinoceros. 5. RHINOCEROS STENOCEPHALUS. B.M. Skull (half-grown) like that of R. unicornis of the same age, but |
