Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 



Vol. LII. No. 6. 



ZOOLOGICAL RESULTS OF THE THAYER BRAZILIAN 



EXPEDITION. 



PRELIMINARY DESCRIPTIONS OF NEW GENERA 



AND SPECIES OF TETRAGONOPTERID 



CHARACINS. 



By Carl H. Eigenmann. 



CAMBRIDGE, MASS., U. S. A. : 



PRINTED FOR THE MUSEUM. 



December, 1908. 



