Works on Natural History. 499 



first described may be said to have five. * The sides of the 

 body are of a deeper hue, and the feet are of a deep grey, 

 consisting of a mixture of black and white hairs. 



There are other points of difference in the colouring, but 

 they are of minor importance. I may mention that, generally 

 speaking, this animal is of a deeper hue ; often, if not generally, 

 being quite black on the back between the striae. It is cer- 

 tainly more subject than the first to variations in colour. 



Should these two animals be considered as distinct species 

 by the generality of naturalists, I would propose that the 

 specific name of palmarum be kept for the former, and that 

 of tristriatus be adopted for the latter. 



The dimensions of these two animals are as follows : — 



Both these animals inhabit the continent of India. The 

 species called by me tristriatus is from the more southern 

 parts of Hindostan. 



REVIEWS. 



Art. I. Le Regne Animal, distribue d'apres son Organisation. 

 Par Georges Cuvier. Nouvelle E'dition, par une reunion 

 d'E'leves de Cuvier. Roy. 8vo, in numbers. Paris, Crochard 

 and Co. 



2. Iconographie du Regne Animal, Par E. F. Guerin. 8vo, 

 in parts. Paris. 



3. Dictionnaire pittoresque d'Histoire Naturelle. 4to, in 

 numbers. Paris. 



4. Suites & JBiiffbn ; Jbrmant, avec les CEuvres de cet Auteur, 

 un Cours complet d'Histoire Naturelle. 8vo. Published in sepa- 

 rate volumes, with fascicles of plates. Paris, Roret. 



5. Suites a toutes les E'ditions de Buffbn. Histoire Naturelle 

 des Animaux Articides. Par Laporte de Castelnau et M. 

 Lucas. 8vo, in numbers. Paris, Dumenil. 



* The outer white line on each side of the body is joined on the lower 

 side by so pale a colour, that it is not very evident as a line ; but when we 

 compare the two animals here described, we see that much difference in 

 general appearance arises from there being no white on the flanks in the 

 latter. 



f Measuring along the curve of the back. 



o o 2 



