124 Annals of the Carnegie Museum. 



ventrals to behind anal. Head back of eyes dusky, the color extend- 

 ing down and back on the sides posterior to the gill-openings. Head 

 3^ ; depth 2^ ; D.I, 7 ; P.I. 7 ; V. 7 ; lat. I.22. 



Charactd^e. 



39. Hop lias malabaricus (Bloch.) Trahira. 



Three specimens, Corumba (362) ; one specimen, Bahia Negra 



C396). 



40. Hoplerythrinus unitceniatus (Spix). 

 Two specimens, Bahia Negra (402). 



41. Pyrrhulina australe Eigenmann and Kennedy. 



Five specimens, Upper Paraguay at Corumba (309, 316). 



42. Psectrogaster curviventris Eigenmann and Kennedy. Blanquillo. 

 One specimen, Bahia Negra (374), and one specimen Puerto Max 



(408). 



43. Curimatella alburnus (Miiller and Troschel). 

 One specimen, Bahia Negra (375). 



44. Curimatus elegans nitens Holmberg. 

 Curimatus elegans paraguayensis E. & K. 



Two specimens, Ascuncion (276). Twospecimens from mountain 

 streams at Sapucay (457). 



45. Curimatus bimaculatus Steindachner. 

 One specimen, Corumba (357). 



46. Prochilodus scrofa Steindachner. 

 One specimen, Bahia Negra (396). 



47. Anisitsia othonops' 1 (Eigenmann & Kennedy). 

 One specimen, Bahia Negra (403). 



48. Parodon paraguayensis Eigenmann (Plate XXXIX., Fig. 1). 

 Nineteen specimens, Ascuncion (275). 



49. Nanognathus borelli Boulenger (Plate XXXIX., Fig. 2). 

 Anostomus fasciatus Eigenmann & Kennedy, Proc. Phila. Acad. 



Sci. 1903, 512, 1904 (Rio Paraguay at Ascuncion and Estancia la 

 Armonia). 



The specimens mentioned by E. & K. and three additional ones 

 from Corumba (338, 357) and one from Puerto Max (409) differ from 

 fasciatus in having no caudal spot. They differ from the typical 

 dissimilis Garman in having but 40-42 scales in the lateral line and 

 the head 4^ in the length, instead of 4^3. 



7 Misprinted orthonops in E. & K.'s article, /. c. , 511. 



