Haskman : Kxi'KunioN lo Cknikai, Souiii Amkkica. 345 



llu- tliird, Idiirtli, lillli, and sixili l()iim.-sl. 'VUv ()rii;in of ihc dorsal 

 is abo\r llir oiirrndar cklt ; soft dorsal and anal scaleless, extending 

 scarcrlx l)c\ond iho base uf the caudal; pectorals about one and one- 

 foiirili tinus the length of the head; caudal peduncle as long as deep. 



Dark bands beneath the eyes, continued above the eyes and meet- 

 ing half-way between the eyes and the origin of the dorsal; dark oper- 

 culum; tins usualK colorless, the membranes between the first five 

 dorsal spines sometimes black, and the edges of the anal and caudal 

 sometimes dark; six dark lateral bands extending from the dorsal to 

 near the U)wer part of the side; in some cases each row of scales has 

 a more or less distinct dark brown line; in some tases there are white 

 bands or lines from the eyes to the snout. 



This species is easily distinguished from Crenicara piinctidala 

 by its color, shape, scales, teeth, and long fourth dorsal spine. Some 

 of these characters almost warrant the erection of a new genus for 

 its reception. 



(ienus Crenicichla Meckel. 



36. C. semifasciata Meckel. 



? Batrachops scotli Eigenmann, ? Crenicichla ocellata Perugia. 

 Habitat. — Basin of the Rio de la Plata. No specimens were taken 

 b>- the expedition of the Carnegie INIuseum. 



37. C. reticulata (Ileckel). 



25 

 D. XXn, 10; A. HI, 8; pores — ; scales 9-66-19; eye 4.5 in the 



12 



head; interorbital 2.67; depth 4.33; head 3.33; four rows of teeth in 



the upper jaw and three in the lower; few spots in the dorsal fin; 



edge of dorsal and caudal dark; indistinct lateral bands, and each row 



of scales on the sides with a dark line. 



No. 2642, 9 cm.. Villa Bella, Rio Beni, Bolivia, Oct. 5, 1909. 



I have compared specimens of Crenicichla punctulata Regan from 



Guiana with this species and find them identical. 



38. C. simoni, sp. nov. (Plate LIX.) 



No. 2646, type, 7.5 cm., Rio Paraguay at Sao Luiz de Caceres, May 24, 



1909. 

 No. -2647, cotype, 6.5 cm., same locality, May 26, 1909. 

 No. 26480-^, cotypes, 5.6 cm., Puerto Suarez, Bolivia, May 6, 1909. 

 No. 2649, cotype, 5 cm., Corumba, Rio Paraguay, April 27, 1909. 

 No. 2650, cotype, 4.3 cm., \'illa Mays, Paraguay, .\pril 13, 1909. 



