MAMMALIA -- EDENTATA. 45 



Malherbe, in his 'Faune Ornithologique' (p. 9), mentions that Ifystri.r 

 crixluta is indigenous in Sicily. 



SUBUNGULATA. Of Dusi/procta punctatn and nigrct, Gray lias given 

 figures in the 'Voyage of the Sulphur' (pi. 15 and 16), besides a repetition 

 of the definition, but he has not added any description or comparison with 

 other species, winch would have been so necessary. 



DUPLICIDENTATA. Gray (ib. pi. 1 4) has given a figure of Lepus Bennett ii, 

 and also (p. 35) an accurate description. 



EDENTATA. 



Anatomisclie Untersuclmngen iiber die Edentaten (Ana- 

 tomical Researches on the Edentata), by W. von Rapp. 

 Tubing. 1843. 



This Monograph affords, in a clear and comprehensive manner, a general 

 exposition of the internal structure of the Edentata, as it includes not only 

 the facts previously known, but also describes numerous independent and 

 extremely accurate researches, by wliich our knowledge of these animals is 

 importantly advanced. The Mouotremata are excluded, and the remaining 

 Edentata divided into herbivorous and insectivorous. Nine lithographic 

 plates, as beautifully as they are accurately executed, increase the value of 

 this distinguished Monograph. 



Description of the Skeleton of an extinct gigantic Sloth, 

 Mylodon robustus, Ow., with observations 011 the osteology, 

 natural affinities, and probable habits of the Megatherioid 

 Quadrupeds in general. By R. Owen. London, 1842. 



Another work of the highest importance, by the celebrated author, which 

 not only presents to us one of the most wonderful forms of the primitive 

 world, and displays it to our sight in twenty-four plates of surprising beauty, 

 but besides tin's, from the comparison of it with congenerous, extinct, and 

 still existing types of a whole group of animals, establishes its true syste- 

 matic position. The skeleton was found in 18 il , in the fluviatile deposit near 

 Buenos Ayres, and in an almost perfect condition ; its dimensions are gigan- 

 tic (entire length 11'), and its form extremely massive. Owen is of opinion 

 that the Mylodon, as well as the Megctlonyx and _ Megatherium, fed, like the 

 Sloths, on the foliage of trees, and, consequently, that these extinct animals 

 might have employed their powerful anterior extremities for the purpose of 

 uprooting the trees. These and the allied forms he terms " phyllophagous 

 Edentata" with the following characters : " teeth few, composed of vascular 



