MAMMALIA. 237 



must have read rather carelessly the description of the Reporter, when he 

 states " that Wagner resolves the two known species into one, and says that 

 the Priuz von Wied and Renggcr are of the same opinion ;" for this is 

 thoronglily incorrect. The Reporter says just the contrary (in Schrcber's 

 Suppl. ii, s. 166) : "the Prinz von Wied distinguishes as a second and larger 

 species the Nasua solitaria : Reuggcr also recognizing this second species." 



The fourth and concluding part (1841) of the Supplement 

 hand to Schreber's Mammalia, as continued by Andr. 

 Wagner, terminates the Rodentia, to which succeed the 

 Edentata, Solidungula, Pachydermata, and Ruminantia. 

 The Seals, to be followed by the Cetacea, are already being 

 prepared for the last volume. 



The second part of the geographical distribution of the 

 Mammalia, propounded by Dr. A. Wagner, has appeared in 

 the Abhantll. der mathem. physikal klasse der k. bay- 

 erisch. Akadern der Wissenchaften, IV. Ahth. 2. 



The first part depicts, after a general introduction given to the subject, 

 two provinces of the northern animal zones, namely, the polar and temperate. 

 The second part is devoted to the third or the temperate province of North 

 America, and is then applied to the consideration of the middle or tropical 

 zones, of which the first or southern Asiatic province is treated of. The 

 printing of this part has been long since concluded, so that its publication 

 may be hopefully expected to follow towards the end of this year. 



Numbers 14 and 15 of Blainville's Osteographie have 

 come to hand, and treat of the Hyaena and Manatus. 



A very detailed comparative description of the cranium 

 has been given by Otto Kostlin, in his work entitled ' Der 

 Bau des knochernen Kopfes in den vier klassen der Wir- 

 belthiere/ Stuttg. 1844. 



The Disquisitioues recentiores de arteriis Mammalium et 

 Avium of L. Barkowius, in Nov. act. acad. nat. cur. xx, 2 

 (1841), p. 607, deserve to be mentioned with praise. We 

 may here also notice with distinction the new edition of 

 Gurlt's Anatomischen Abbildungen der Haus-Saiigthiere, 

 which has reached the 14th Number. 



A very interesting Report concerning the institutions of 

 natural history adjacent to, or upon the banks of, the Rhine, 

 was communicated in the ' Isis/ s, 245. It ranges over the 



