258 Canadian Record of Science. 



e. P. Forchammeri zone. 



f. P. Agnostus lsevigatus zone. 



For comparison I would first refer to the interesting 

 fauna of Cambrian age, described by M. Jules Bergeron, 

 and occurring at the Montaigne Noire, Dept. Herault, in 

 the south of France. 



Until of late years the fauna of Sabero in Spain, studied 

 by De Yerneuil and Barrande many years ago l has been 

 the only one in the south of Europe giving an exact hori- 

 zon in the Cambrian system. Now, however, that we have 

 Cambrian faunas from other districts in that part of the 

 continent, there is a broader basis on which to build our 

 comparisons. In two of these districts we find varietal 

 forms of species known elsewhere, and in one of them a 

 peculiar combination of types, which it is difficult to 

 parallel in other Cambrian areas, and especially in Scandi- 

 navia. To the fauna from the south of France one can 

 easily find a parallel ; but that of Sardinia, though in a 

 country so near at hand, is perplexing, and difficult to place, 

 owing to the novel forms which it contains. 



M. Jules Bergeron has given a full account of the fauna 

 observed by him in the shales of Montaigne Noire, and il- 

 lustrated the forms with excellent plates representing the 

 species which occur there. This fauna consists of about 

 ten forms, (seven described species) nine trilobites and one 

 cystidian. It is referred by M. Bergeron to the Menevian, 

 but it is rather to be compared to that part of the Menevian 

 which has been set off by Dr. Hicks as the Solva group. It 

 agrees very closely with the sub-section 1 c. 2 of the St. 

 John group, and has species equivalent to those of the " Ex- 

 sulensKalk" of Scandinavia. 2 



The talented author of the publication describing this 

 fauna, found it to extend through twelve metres in thick- 



1 Faune primordeale dans la chaine cantabrique. 



2 Etude geologique du Massif ancien situ6 au sud du plateau 

 central. J. Bergeron, Paris. 



