Rathbun.] 38 {May 15, 
only from the Corniferous limestone and Schoharie grit of North 
America, and Strophodonta perplana is found in the same formations 
and also in the Hamilton and Chemung groups. Of species much 
more abundant in the Mecurt than the Ereré beds; Tropidoleptus 
carinatus is essentially a Hamilton group form; Chonetes Freitasi in 
its younger stages resembles C. deflecta of the Hamilton, but the lare- 
er, more abundant forms are represented in New York State by the 
larger type of Chonetes of the Corniferous limestone. Rhynchonella 
dotis of the Mzcurti is probably as closely related to some of the 
Corniferous Rhynchonelle as to any of the Hamilton. I have been 
unable to make satisfactory comparisons of the Orthes, but they are 
of North American Devonian types. / | 
Of the new species of Mecurti Spirifere; Spirifera mecuruensis is 
closely allied to S. disparilis of the Corniferous, and S. Derbyi re- 
sembles S. raricosta of the same formation. 
Of the species peculiar to the Ereré beds, or most abundant there; 
Spirifera Pedroana appears to have related species in both the Cor- 
niferous and Hamilton groups of N. America; Chonetes Comstockii 
represents C. coronata of the Hamilton group; and Retzia Jamesiana 
is most like FR. lepida of the same formation. Spirifera granulifera 
of the Hamilton group of N. America is represented at Ereré by a 
similar species, and Lingula spatulata is a Hamilton group species. 
As might be expected, Streptorhynchus Agassizu is as common to both 
the Mecurti and Ereré beds as the North American species, which it 
represents, is common to the Corniferous, Hamilton and Chemung 
groups of New York State, etc. 
It would appear from the preceding comparisons that the Ereré 
beds, as determined by their fossils, and as before indicated in my 
previous paper on the Ereré Brachiopods, are more closely related to 
the Hamilton group than to any other North American formation; 
but the Mecurt and Curué fossiliferous beds, although they contain 
a sufficient number of Ereré species to proye their close connection 
with the deposits at the latter place, yet they also bear a nearer rela- 
tionship to the Corniferous group of New York State, than do the 
Ereré beds. In Pard we haye the same general order of succession 
of species as in the Corniferoys and Hamilton groups of N. America, 
and a similar intermingling of forms. The number of species of 
Brachiopods recorded from the Brazilian Devonian is so much small- 
er than that known from N. Amerjca, and the fossiliferous localities 
visited are so few, that we must expect further explorations to more 
