1891.] ON THE PARTS OF schreber's saugthiere. 587 



6. On the Dates of the Parts, Plates, and Text of Schreber's 

 ' Saugthiere/ By C. Davies Sherbokn, F.Z.S. 



. [Eeceived October 10, 1891.] 



Many difficuUies iu synonymy have arisen from lack of informa- 

 tion as to the dates of publication of Schreber's ' Saugthiere,' a work 

 which commencing in 1774 was not completed until 1855. The 

 following deteruiinations have been arrived at by searching through 

 contemporaneous literature. Unfortunately no copy of the book 

 still preserving the original wrappers of the parts has come to my 

 hands, and the evidence of dates is, with one or two exceptions, 

 derived from periodical publications. In every case a reference to 

 the authority quoted is given. 



The list is still imperfect, but the dates of all the more important 

 parts have been determined ; blanks have been left for the insertion 

 of further particulars, information about which I shall gratefully 

 receive. 



The following is the general description of the work : — 



Schreber, Johann Christian Daniel. Die | Saugthiere | 

 in I Abbildungen nach der Natur | mit lieschreibungen. | 

 Erlangen (Walther). 



Th. I., title, Vorrede (4 pp.) title, 1-190 pp., 62 pis.. 1775. 



Th. II., pp. 191-280, pis. 63-80, 1775. 



Th. III., title, pp. 281-590, pis. 81-165, 1778. 



Th. IV., title, pp. 591-936, pis. 166-240, 1792. 



Th. V. (pt. 1), pp. 937-1 1 12, pis. 241-3-17 and various supple- 

 mentary plates, [thence continued by August Goldfuss, whose 

 " notice " is dated " Erlangen, im Marz, 1817 "], pp. 1 113- 

 1272, [thence continued bv Johann Andreas Wagner], 

 pp. 1273-1472. 



Th. V. (pt. 2), pp. iv, 1473-1840, various plates. 



Th. VI., pp. xvi, 1-520, pis. 308-328. 



Th. VII., pp. viii, 1-428, pis. 329-385. 



Supplementary Volumes, also by J. A. Wagner: 



I., pp. xiv, vi, 1-551, pis. 1-62, 1840 [completed in 1839]. 



II., pp. viii, 1-558, pis. 63-84, 1841. 

 III., pp. xiv, 1-614, pis. 8.5-165, 1843. 

 IV., pp. xii, 1-523, pis. 168-327, 1844. 



v., pp. xxvi, 1-810, pis. 1-51, 1855. 



The following are the details of the separate parts. The authori- 

 ties for the dates are given at the end of each " Heft." The contents 

 of each Heft up to 64 are given from an original copy of Goldfuss's 

 circular, fortunately preserved in an early copy of the work now in 

 the Natural History Museum, which was brought to my notice 

 by Mr. J. Saunders of the Zoological Library ; Goldfuss, however, 

 does not give a single date ! 



