346 Annals of the Carnegie Museum. 



2"^— 24 



D. XXII, II; A. 111,7; pores ; scales 8 or 9-61 to 66-15 tc 



14-15 



19; teeth in three rows in each jaw; depth 4; head 3.25; eye 4. 



snout 4: diameter of eye 1.33 in the interorbital space; three rows of 



scales between the lateral lines; caudal peduncle three-fifths as long 



as deep; maxillaries extending almost to the middle of the eyes; 



eight gill-rakers on the lower anterior arch; depth of preorbital not 



more than one-third the diameter of the eye; last row of teeth faintly 



depressible; in some of the specimens the spinous dorsal does not have 



two rows of spots, but all have three rows of spots in the rayed dorsal; 



anal uniformly dusky; caudal with a dark margin at the end of a 



whitish band, which extends from the upper basal margin to the end 



of the median caudal rays; the other fins colorless; a small dark 



ocellated spot at the base of the caudal ; sides and back crossed by from 



eight to eleven double dark bands; each row of scales on the sides with 



spots on the scales; a dark band from the eye to end of the operculum. 



C. cyanota Cope has a more slender body and no dorsal spots, while 



C. reticidata (Heckel) has a much smaller eye. This species differs 



from the previously described Paraguayan forms in color, in the 



larger size of the eye in comparison with the interorbital space, and 



in the number of scales and spines. It is more closely allied to C. 



cyanota. 



I have dedicated this species to Mr. Fleciano Simon of Corumba, 

 who assisted me in various ways while I was collecting in the Rio 

 Paraguay. 



I find that the teeth of adult C. vittata and iguassuensis are just 

 as firm as in the supposed species of the genus Batrachops, which is 

 based on large specimens. The last row of teeth of C. lacustris are 

 one-half depressible and in C. dorsocellata are not depressible. C. 

 lepidota and saxatilis have several rows of depressible teeth. As 

 a rule the species of the genus Batrachops have three rows of teeth, 

 but some have as many as six. The number of rows of teeth varies 

 a great deal in all of the species of Crenicichla. Hence I consider 

 the genus Batrachops as not tenable. 



39. C. cyanota Cope. 



No. 2643, 5.5 cm., Santarem, Dec. 9, 1909. 



No. 2644C-C, 5.5 cm., San Joaquin, Bolivia, Sept. 4, 1909. 



No. 2645, 7 cm., San Joaquin, Bolivia, Sept. 6, 1909. 



