eigenmann: the pygidiid^e, a FAMILY OF SOUTH AMERICAN CATFISHES. 365 



dorsal over the tips of the ventrals, distance of origin of dorsal from caudal 2.25-2.5 

 in its distance from the snout. 



Back and basal part of caudal truncate. 



Fig. 35. Vandellia hasemani Eigenmann. .1, Left premaxillary from below, with two functional 

 and two relay teeth. B, left premaxillary of another individual with four teeth. C, the same, looking 

 at the edge of the teeth. D, premaxillary from below. 



5. Vandellia sanguinea Eigenmann. (Plate LIII, fig. 2.) 



Vandellia sanguinea Eigenmann, Proc. Am. Philos. Soc, LVI, Jan., 1918, p. 701. 

 7082, C. M., type, 62 mm. San Antonio de Rio Madeira. Nov. 3, 1909. Hase- 



man. 



This species differs from the others of the genus Vandellia in having concealed 

 teeth on the ends of the mandibles. It resembles them so much in other points 

 that it naturally raises the question whether these structures have not been over- 

 looked in V. cirrhosa and wiener i. They cannot be seen without considerable effort . 

 The species greatly resembles V. plazai. Mr. Haseman noted that the specimen 

 was white (translucent?), the alimentary canal straight and gorged with blood. 



Fig. 36. Vandellia sanguinea Eigenmann. No. 7(Js2, fain. Mus. Type, 02 mm. 



