424 Annals of the Carnegie Museum. 



7152a, C. M., one, 96 mm., Munez Freire, Rio Itapemerim, June 18, 



1909, Haseman. 

 7154a, C. M., one, 190 mm., Campos, June 14, 1908. Haseman. 

 7146a, C. M., one, 154 mm., Lagoa Feia, June 16, 1908. Haseman. 

 7i6ia-m, C. M., thirteen, 70-160 mm., Sao Joao da Barra, June 22, 



24, 1908. Haseman. 

 69990-^, C. M., four, largest 62 mm., Rio Itapicuru, Queimadas, 



March 2, 1908. Haseman. 

 yoooa-b, C. M., two. larger 78 mm., Rio Itapicuru, Timbo, March 5, 



1908. 



This species is undoubtedly identical with T. striatulus (Steindach- 

 ner). The specimens from the south are lighter in color and more 

 mottled, those from the north having fewer spots and flecks and being 

 generally darker. A complete intergradation of all the characters 

 used to separate the two species T. galeatus (Linn.) and T. striatulus 

 (Steindachner) is found, and therefore striatulus is placed in the sy- 

 nonymy of galeatus. 



78. Auchenipterichthys thoracatus (Kner). 



6782a, C. M., one, 175 mm., Manaos, Nov. 29, 1909. Haseman. 

 6'jdiia-d, C. M., four, 60—117 mm., Maciel, Rio Guapore, Aug. 11, 



1909. Haseman. 

 7003a-/, C. M., six, 73-90 mm., San Joaquin, Sept. 5, 1909. Haseman. 

 6998a, C. M., one, 125 mm., Bastos, Rio Alegre, into R. Guapore, 



June 26, 1909. 



79. Pseudauchenipterus nodosus (Bloch). 



67780-7, C. M., seven, 122-145 mm., Para, Dec. 24, Jan. 19-22, 1909. 

 Haseman. 



678oa-c, C. M., three, 80-120 mm., Penedo, March 20, 1908. Hase- 

 man. 



6779a, C. M., one, 210 mm., Alcobaga, Jan. 10, 1910. Haseman. 



6997a, C. M., 140 mm., Rio Coite, Jan. i, 1910. Haseman. 



The specimens from Para have the margin of the caudal dark, the 

 dark widest on the upper lobe; maxillary barbel reaching to the tip of 

 the pectoral or a little shorter. Three of the specimens are males, in 

 these the anterior anal rays are prolonged into a slender lobe extending 

 far beyond the tip of the last rays; the urogenital duct of the male 



