468 Analytical Notices of Books. 



the entire skeletons and skulls which he was enabled to bring with him 

 to Europe. 



From these materials he has produced a very interesting volume, not 

 merely to the scientific reader, but also to the world at large ; adding 

 as it does to very minute descriptions, and valuable discussions on the 

 synonymy of the species, extensive details of their habits and modes of 

 life, derived chiefly from personal observation. In this latter part of 

 his subject, which renders his book as amusing as it is instructive, he 

 frequently corrects his predecessor D'Azara, who appears to have 

 relied more on accounts furnished by natives than is either safe or 

 prudent. 



The volume commences with the physical description of the native 

 inhabitants of Paraguay, which the authour limits to the kind of penin- 

 sula formed by the rivers Paraguay and Parana, from their union as far 

 North as 21 ° S. lat. Within this tract of country he has met with 68 

 species of Mammalia, which we shall proceed to enumerate, making a 

 few observations on those which seem to require elucidation. Only 

 three species of Monkeys are noticed : \\z. 1. Mycetes Caraya, Desm.; 

 2.CehusAzar(E, Rengg. ; and 3. JVyctipithecus trivirgatus: the Caraya, 

 Cay, and Mirikina of the natives. The first and last are now well 

 known species; the second is meant to include all the varieties, as the 

 authour considers them, of the Paraguayan species of Cehus. In corro- 

 boration of this opinion he describes numerous individuals varying 

 greatly in the nature and intensity of their colouring, even in the same 

 family ; thus affording strong grounds of suspicion that the number of 

 species in this genus has been greatly and unnecessarily augmented by 

 the adoption of slight differences of colour as a sufficient ground of 

 separation. The Cheiroptera observed are>^ more numerous : they are 

 4. Phyllostoma superciliatum, Wied ; 5. Phyll. lineatum, Geoff. ; 6. 

 Phyll. infundibuliforme, Rengg. : 7. Phyll. Lilium, Geoff. ; 8. Glosso- 

 phaga villosa, Rengg. ; 9. Vespertilio villosissima, Geoff. ; 10. Fesp. 

 nigricans, Wied; 11. Molossus laticaudatus, Geoff.; 12. Mol. 

 c(Bcus, Rengg. ; 13. Mol. crassicaudatus, Geoff. ; 14. Mol. casta- 

 neus, Geoff, j 15, JVoctilio dorsatus, Wied ; and 16. JVoct. ruber. 



