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Show 164 PROF. ST.-GEORGE MIVART ON THE ALUROIDEA. [Feb. 7, It is by cranial and dental characters that this genus is distinguishable, as was pointed out by Dr. Peters and Dr. Gray. The palate is much more prolonged behind the last molars than in any Paradoxure. In Paradoxurus grayii (in which it is more prolonged than in any other Paradoxure) the first molar's length is only 10, the whole cranial length being taken at 100, whilei n A. trivirgata it is 12*6 or even 148, and in the specimen named A. stigmatica 13*0. Moreover the hinder portion inclines more or less strongly Fig. 8. External form of Arctogale. upwards as it proceeds backwards, and there is a deep notch with a semicircular or more than semicircular outline on each side of the prolonged median portion. The hinder portion of the alveolar border of the mandible is also singularly everted. The teeth of Arctogale are remarkable for their small size and very unsectorial character. - and -- are very nearly equal in |