464 Analytical Notices of Booh, 



which it closely resembles. Its fur is yery thick, coarse, and long, 

 resembling that of the Agoutis ; the hairs are about an inch in 

 length, and are coloured in successive rings of yellow and deep- 

 brown ; hence the upper parts of the body and limbs are variegated 

 with these colours ; both the jaws, and all the under surface, are of 

 a uniform yellowish white ; the hairs of the tail are brown above, 

 and yellowish below. Its country is yet unknown. 



Figures of the animal, of its skeleton, and of various anatomical 

 details connected with it, illustrate the description. 



The remainder of the seventh livraison is occupied by an Ap- 

 pendix, containing additions and corrections to the preceding 

 parts ; a Preface ; and a Catalogue of the genera of Mammalia. 

 Both the latter merit attention; the former on account of the 

 judicious observations contained in it relative to the abuses which 

 now prevail in the formation of genera and species on insufficient 

 grounds ; and the Catalogue for the valuable hints interspersed 

 throughout it. Under each genus the number of species contained 

 in it is stated, as also the doubtful ones ; and M. Temminck con- 

 cludes that full eight hundred and fifty genuine species of Mam^ 

 malia are to be found in our existing collections. 



Manuel de Mammalogie, ou Histoire Naturelle des Mammiferei / 

 par R. P. Lesson. l2mo. pp, 442. Paris, 1827. 



A neat and convenient little Manual exhibiting the characters^ 

 generic and specific, of the whole of the Mammalia hitherto no- 

 ticed. It is compiled chiefly from the Mammalogie of M. Desmarest, 

 itself a compilation, the very errors of which are occasionally 

 copied. With this are interwoven the new species which have 

 been described since the appearance of that work, and the number 

 of mammiferous animals is thus raised from 850 to 1124 ; of which, 

 however, probably one-fourth may be regarded as founded on 

 erroneous or insufficient data. It possesses no novelty beyond that 

 of occasionally elevating to the rank of a genus what had been 

 considered as a species ; but is merely to be viewed as a useful 



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