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It is our colleague, M. Isidore Geoffroy Saint Hilaire, 

 who has engaged to make known the Mammalia. But he 

 has not confined himself to the description of new species 

 due to the researches of M. Belanger. He has taken occa- 

 sion to enrich the science by the consideration of new facts 

 relative to Mammalia in general. Also in an introduction, he 

 adverts to some of the more abstract views of Zoology. On 

 the characters of the new animals as compared with those 

 of animals known before, which constituted the special ob- 

 ject of his subject, he is led to offer general observations on 

 Geographical Zoology from the materials afforded by M. 

 Belanger, as well as from those of different countries of the 

 globe with which we have become acquainted by means of 

 other travellers. Then follows a general table of the Qua- 

 drumana, in which the generic and specific characters of 

 these animals are found, those which inhabit Africa, as well 

 as such as belong to Asia. To complete this table, M. 

 Geoffroy Saint Hilaire describes five new species of Indian 

 Monkeys ; these are the Semnopethicus Feller osus,^ Geof. 

 S. CuculatuSi\ Geof., the Macacus aureus^ Geof., Macacus 

 arctoideSf Geof.; still viewing his labours under the same 

 point of view, our colleague traces briefly the history of the 

 various labours devoted to the investigation of the Bats, and 

 makes us acquainted with one new species of Vespertilio, 

 the Vespertilio of Belanger, discovered by our traveller at 

 Pondicliery, where it is known under the name of Terinjily, 

 He describes also two new species of Kingfishers, due to 

 the researches of M. Duvaucel, at Sumatra, and to those 

 of M. Dussumier on the continent of India. 



Observations on the natural characters of insectivorous 

 animals precede the general remarks on the genus Tupaia, 

 and by this denomination our colleague intends the Indian 

 insectivora to be designated, and not the Squirrels which in 



* The furred Monkey. 



t The hooded Monkey. 



