Scveral new speeies of Braziian Nematognatli 
Tn the following T am publishing the description 
of a certain number of fislies of the Order of Nema- 
tognathes that till oow are unknown to Science. I for- 
bear giving liere detailed observations and illustrations, 
as I am elaborating a study of a more general character 
which will comprehend all the fishes belonging to the 
Order of Nematognathes of Brazil. This revision will 
be published in Vol. VII of the Revista do Museu 
Paulista and most of the speeies described therein will 
be accompanied by illustrations. 
I cannot help improving the occasion to render 
again my best thanks to Prof. Cli. H. Eigenmann for 
his efficacious assistance at the beginning oí my ichthyo- 
logical studies. It is also lie to whom I am indebted 
for the certainty with which I am able to present these 
descriptions, as lie has been kind enough to examine the 
speeies sent him (they are marked in the descriptions 
with a *) and to give me in a good part the diagnoses. 
Finally I must say that I also had occasion to show 
some of the cotypes to Dr. C. Tate Regan, of the 
British Museum of Natural History in London, when 
passing through that city. 
