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must have read rather carelessly the description of the Reporter, when hestates “ that Wagner resolves the two known species into one, and says thatthe Prinz von Wied and Rengger are of the same opinionfor this isthoroughly incorrect. The Reporter says just the contrary (in Schreber ’sSuppl. ii, s. 166): “the Prinz von Wied distinguishes as a second and largerspecies the Nasua solitaria : Rengger also recognizing this second species.”
The fourth and concluding part (1844) of the Supplementhand to Schreber ’s Mammalia , as continued by Andr.Wagner, terminates the Rodentia , to which succeed theEdentata, Solidungula, Pachydermata, and Ruminantia .The Seals, to be followed by the Cetacea , are already beingprepared for the last volume.
The second part of the geographical distribution of the(Mammalia , propounded by Dr. A. Wagner, has appeared inthe Abhandl. der mathem. pliysikal klasse dei- k. bay-erisch. Akadem der Wissencliaften, IY. Abth. 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 tropicalzones, of which the first or southern Asiatic province is treated of. Theprinting of this part has been long since concluded, so that its publicationmay be hopefully expected to follow towards the end of this year.
Numbers 14 and 15 of Blainville’s Osteographie havecome to hand, and treat of the Hyaena and Manatus.
A very detailed comparative description of the craniumhas been given by Otto Kostlin, in his work entitled ‘ DerBan dcs kltbehernen Kopfes in den vierklassen der Wir-belthiereStuttg. 1841.
The Disquisitiones recentiores de arteriis Mammalium etAvium of L. Barkowius, in Nov. act. acad. nat. cur. xx, 2(1841), p. 607, deserve to be mentioned with praise. Wemay here also notice with distinction the new edition ofGurlt’s Anatomischen Abbildungen der Haus-Saiigthiere,which has reached the 14th Number.
A very interesting Report concerning the institutions ofnatural history adjacent to, or upon the banks of, the Rhine ,was communicated in the ‘ Isis/ s. 245. It ranges over the