BROWN DORSAL-STRIPED DORAS. 163 



pose fin small, situate nearly over the anal ; ventral 

 and anal fins placed near each other; dorsal and 

 pectoral spines much serrated ; a bony process on 

 the body, near the head, which the dorsal spine lies 

 against when it is closed. The opercles have smooth 

 edges, with striated, surface ; the cirrhi are long and 

 white. It much resembles the two last in its habits 

 and retreats, and is not much used for food." (The 

 " two last" refer to Nos. 41 and 40, iSchomb. Draw- 

 ings, also our two last described sj)ecimens). 



We have still the drawing of another small fish 

 with the second dorsal fin, which will enter into 

 this genus. 



Doras brunnescens. Brown Dorsal-striped 



Doras. — Macusi, Kiru-kiru ; L.Geral, Bayacu 



Schomh. Drawings, No. 18. — The drawing of this 

 fish, though characteristic, is scarcely sufficiently 

 detailed to w^ork from; for this reason we have 

 named it as distinct from the D. armatulus, Valenc, 

 to which it approaches in colouring, but not at all 

 in habits. From the drawing we cannot count the 

 costal plates, and the formula of the fins unfortu- 

 nately have been omitted. The formula of Valen- 

 ciennes is given underneath, with his description, 

 which can be compared with the notes of Mr. 

 Schomburgk. 



D. armatulus^ Valenc. 

 « Cost. pi. 28 or 29— D. 1/6_P. 1/6_V. 7— A. 12_C. 17." 

 " Ce poisson est d'un brun noir ; un band fauve- 

 clair commence au-dessus de Toeil, transverse le cote 



