— 20 - 
General colour jellowish, witli dark hues on head, 
cheeks, back, and (-andai region. A11 fins nearly plain ; 
only tlie pectorals somewhat darkened at the anterior 
margin as well as at the dorsal at its base and subter- 
minally, leaving a whitish band in the middle ; pecto¬ 
rals and ventrals lighter at the ends. 
Type: Several specimens from a total lenght of 
12J/^-22 cm. from the riverlets of the Island of S. 
Sebastião, State of S. Paulo. 
Heptapterus multiradiatus n. sp. 
D. 7; A. 36; V. 5 ; P. 7-8; Body greatly elongated, 
generally compressed, specially at its posterior half; 
width at the thorax, equal to hight (a little less than 
length of head). 
Head depressed in front, gradually elevating poste- 
riorly where it attains 4 / 5 of the width; length of head 8 
times in length of body; covered whit tliin skin, also over 
the eye ; provided with symmetrical pores on snout, be- 
tween eyes, behind tliese and parallel to the gill-openings. 
Fontanel reaching the base of occipital process whicli is 
very slender and not longer than an eye diameter. Eye 
decidedly before middle of head, covered with skin ; nares 
considerably separated, the posterior one less than 1 
orbital diameter before eye, the anterior one almost 
over the % provided with a rather long tube; inter- 
orbital space equak nearly length of snout; snout 2 
in head. 
/ O 
Maxillary barbeis reaching middle of pectoral as 
well as the outer pair of mental barbeis ; postmental 
barbeis a little shorter. Distance from dorsal to tip of 
