362 Magazin de Zoologie, 



Among the Mammalia described, we have a description and figure 

 of the beautiful Colobus Guereza, taken from the " Neue Wirbel- 

 thiere" of Riippel. — A notice of some of the animals brought home 

 by " La Corvette La Favorite/' and a short memoir, " Sur le genre 

 Pcephagomys et quelques autres Rongeurs qui I'avoisinent," accom- 

 panied by a figure of P. ater, and a good plate of the dentition of 

 Oryctomys, Blain. 



The ornithological department commences with descriptions of 

 some of the birds discovered by the expedition of " La Favorite," 

 by MM. Fortune Eydoux and Paul Gervais. A figure of Gould's 

 Pteroglossus ulocomus is given. The specimen was procured at 

 Para, and is said to be the only one in the Parisian collections. 

 An Ibis is presented under the title of I. Lamellicollis, sent from 

 New Holland, and so named by M. Lafresnaye, but this is the 

 New Holland Ibis of Dr Latham, the /. spinicollis of Jame- 

 son, New Ed. Phil. Journal ; and the I. Lathamii, Gray, Pro- 

 ceed. Zool. Society of London. — The same gentleman figures and 

 describes a shrike as new, and lately sent from the Cape of 

 Good Hope, by M. Verreaux, under the title of Ij. melanoleu- 

 cus. — How he has hit on the same title we know not, but a 

 plate and description will be found executed and published six or 

 seven years since in Illustrations of Ornithology by Sir W. Jar- 

 dine and P. J. Selby, from specimens sent to Europe by Dr Smith. 

 A curious bird from Madagascar, of which a new genus is made, 

 (Falcidia,) is figured and fully described. The form is consider- 

 ed to be intermediate between the hoopoes and Promerops of Tem- 

 minck, and the colouring is peculiar, the head, neck, and under parts 

 pure white, the remaining plumage deep bluish-black. A short 

 memoir by M. Lafresnaye on the species of the genus Orthoiomus 



of Horsfield. Remarks by the same person on the genus Cerlhi- 



laiula, Svv. with observations on two South American species, 

 which are considered to be new, and a beautiful 3Iic?-opagon 

 from South Africa, or rather from the interior of the country, said 

 to have been brought from the country of the " Masilikats." M. 

 Lafresnaye has named it M. sulphur atus. 



MoLLuscA. Plate 71 represents Drepanosioma naulUiformis, 

 the type of a subgenus of Helix distinguished by a peculiarity in 

 the shape of the aperture which the name (from d^iiravov, a scythe, 

 and dro/jja, a mouth,) is meant to express. The species is a native 

 of the province of Como in Italy, living in families under stones 



and decaying leaves in shadv woods. The Ilosiellaria occidenta- 



lis of Beck forms the subject of PI. 72. It belongs to the same 

 section as our British species ; and is a native of the North Ame- 



