Xxx ABBREVIATIONS. 
Trans. Geol. Soc.—Transactions of the Geological Society of London. 
Ato. London. 
Trans, Linn. Soc.—Transactions of the Linnean Society. 4to. London. 
Trans. Zool. Soc.—Transactions of the Zoological Society of London. 
4to. London. | 
Zeitschr, deutsch. geol. Ges.— Zeitschrift der deutschen geologischen 
Gesellschaft. Berlin. 
Note.——The abbreviations of separate works are readily recognizable, 
and do not require explanation. Memoirs that appeared in serials are 
always quoted from such serials, with one or two exceptions, like Pomel’s 
“Catalogue Méthodique’? (Paris, 1853) and H. von Meyer’s ‘ Die fossile 
Zahne und Knochen von Georgensmund’ (Stuttgart, 1834), which ori- 
ginally appeared in serials but are better known as separate volumes. » 
1 The first part of this Catalogue appeared in its original form in 1852, in 
the ‘Ann. Sci. Auvergne’ ( Clermont-Ferrand). 

CORRIGENDA. 
Page 67. In the description of Nos. 40827 a, and 40827 b, transpose 
the words right and left. 
Page 74, For No. 15436 read 15434. 
