OCR Text |
Show 412 MR. G. BUSK ON FOSSIL REMAINS FROM BORNEO. [June 10, the posterior, are somewhat slender, and the latter is curved forwards towards the summit. There is a very minute tubercle at the bottom of the fissure. The crochet (c, fig. 4, p. 413) projects directly forwards, and rises from the hinder column at a very open angle. There is no trace of a crista. Fig. 2. Posterior surface. The question now is to determine the species, recent or extinct, to which these teeth belong. Although the evidence afforded by a single tooth, and that in a not fully developed condition, cannot be regarded as very ample or sufficient in many cases, still I think m the present it may be safely relied upon. Without entering into other details, I may say that the dimensions of the tooth alone exclude from consideration, among existing species, R. indicus, R. bicornis, and R. simus, leaving of known species only R. sondaicus and R. sumatranus, and, amongst quater- |