THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SEVENTH SERIES.] 



" per litora spargite musoum, 



Naiades, et circiun vitreos considite fontes : 

 Pollice virgineo teneros Mc earpite flores : 

 Floribus et pictum, divae, replete canistrum. 

 At vos, o Nymphse Craterides, ite sub undas ; 

 Ite, reeurvato variata eorallia truneo 

 Vellite museosis e rupibus, et mihi conchas 

 Perte, Deae pelagi, et pingui conchylia succo. 



N.PartheniiGiannettaii, Boi. 



No. 31. JULY 1900. 



I. — On some Fish-remains from the Parana Formation, 

 Argentine Republic. By A. SMITH WOODWARD, LL.D., 



F.L.S. 



[Plate I.] 



There 13 an interesting marine deposit exposed in the banks 

 of the River Parana near the city of Parana, in the province 

 of Entrerios, Argentine Republic. It has been known since 

 the explorations of d'Orbigny and Darwin, and is of special 

 importance not only as containing the remains of land- 

 mammals itself, but also as being intimately associated with 

 other deposits which yield abundant evidence of extinct 

 mammalian faunas. Since marine fossils are of much more 

 value in determining the age of a formation than the remains 

 of land animals, this small Parana deposit may therefore be 

 expected to afford a clue to the geological age of some of the 

 South-American terrestrial faunas, concerning which various 

 opinions have been expressed. Its interest in this connexion 

 has already been recognized by several observer?, including 



Ann. & May. N. Hist. Ser. 7. Vol. vi. 1 



