EIGENMANN: the PYGIDIID^, a family of south AMERICAN CATFISHES. 363 



text; Mission Geodesique de TEquateur, XII, 1912, p. 2, p. 10, pi. I, fig. 2, 



near the mouth of the Rio Misahually. 



Habitat. — Rio Napo, Ecuador. 



This species is known from the type. It is distinguished by its short body, 

 short barbel, and forked tail. 

 A.9934, Paris Museum, one, 92 mm. Rio Napo near the mouth of the Misahually, 



Ecuador. Charles Wiener. 



Fig. 31. Vandellia wieneri Pellegrin. (After Pellegrin.) 



Head over 7; depth 7; D. 11; A. 10; P. 6; 9 teeth; lower jaw incised in middle, 

 without teeth; maxillary barbel about three in the head; eye two in the snout; 

 fifteen opercular spines in four series, directed obliquely upward and backward; 

 seven or eight interopercular spines in two rows; dorsal about two and three-fourths 

 times nearer caudal than snout; ventrals a little in advance of the last third of the 

 body; caudal peduncle 2.5 as long as high. Named for the collector, Mr. Charles 

 Wiener. 



Rio Ma- 



Fig. 32. Vandellia wieneri Pellegrin. (After Pellegrin.) 



4. Vandellia hasemani Eigenmann. (Plate XVIII, fig. 3.) 

 7542, C. M., type, 72 mm.; 7543a-6, C. M., paratypes, 68 and 69 mm. 



more. Haseman. 



Evidently similar to V. wieneri. Head 8-8.5; depth 8; D. 11; A. 10; P. 6. 

 Five or six teeth in the premaxillaries, two thorn-Uke teeth on the distal part of the 

 anterior face of the premaxillary, two or three more slender teeth on the distal part 

 of the lower face of the premaxillary; mandibular rami without teeth, widely 

 separated from each other, the membrane between the two rami but little emargi- 

 nate; angle of gape about halfway between the premaxillary and the barbel; maxil- 



