6 PROCEEDINGS OF THE NA TIONAL MUSEUM. vol. xxxiii. 



faint stripes along the rows of scales; faint dark cross shades. These 

 specimens differ from the specimen of scrofa I'ecorded by Eigenmann 

 and Norris from Piracicaba in the number of scales (9-48-8), the 

 height of the dorsal (equals head less snout in front of nares), the 

 extent of the pectorals (to third scale in front of ventrals). There 

 are other minor differences, but the two forms are evidently quite 

 similar. Origin of dorsal over the eleventh scale of the lateral line, 

 origin of ventrals below the fifteenth. 



Named for Mr. Barton A. Bean, Assistant ^Curator, Division of 

 Fishes, United States National Museum. 

 Prochilodus scrofa Steindacliner. 



No. 21445. One specimen, Paraguay, Page collection. 



No. 1632. One specimen, Paraguay, Page collection. 



Parodon paraguayensis Eig-enmann, new species. 



Parodon affinis Eigenmann and Kennedy (not Steindachuer), Proc. Acad. Nat. 

 Sci. Phila., 1903, p. 512. 7 Q 



Tijix'. — No. 9953, I. U. Museum, a specimen 18 mm. long to l)a.se of 

 caudal. Asuncion, Rio Paraguay. Anisits. 



Cotypes. — No. 9953a, Museum of Indiana University. Numerous 

 specimens, Asuncion. Also other specimens, Nos. 9952, 9975, 

 and 10237, Indiana University Mus., 35 to 105 mm. to base of caudal, 

 the largest 105 mm., Asuncion; and Cat. No. 1641, U.S.N.M., one 

 specimen 100 mm. to end of lateral line. Paraguay, Captain Page; 

 and Cat. No. 2108, U.S.N.M., 112 and 105 mm. to end of lateral line. 



Teeth 2-4, 4-2; head 3.5 to 4; depth 4.33-5.5; I). 11 or 12; A. 8; 

 P. 12; scales 4-42 to 44-4; eye 3^-4 in head; snout 3; interorbital 

 about equal to snout; width of mandible 5-5^ in the length of the head. 



Origin of dorsal equidistant from tip of snout and tip of adipose or 

 a little posterior; height of dorsal equal to head in front of upper 

 angle of gill opening; margin of dorsal obliquely truncate, the highest 

 rav extending beyond tip of last; adipose over anal; ventrals under 

 seventh or eighth dorsal ra}^ their tips 2 or 3 scales removed from 

 anus; tips of pectorals 4 scales removed from ventrals. Scales highlv 

 iridescent; a dark band from tip of snout along lateral line to tip of 

 middle caudal rays, a silvery band below it; back with faint dark 

 cross shades. 



Parodon piracicabae Eig-enmann, new species. 



Parodon affinis Eigenmann and Norris (not Steindachuer), Kevista Museum, 

 Paulista, IV, 1900, p. 356. 



Type. — No. 9292, Indiana University Museum, 108 mm. to end of 

 lateral line; Piracicaba, von Ihering. 



Cotypes. — No. 9292a, Indiana Universit}' Museum, 105 and 100 mm. 

 to end of lateral line. Piracicaba. Teeth 2-4. 4-2; head 5; depth 4^^; 

 D. 12; A. 8; P. 14; scales 4-41 or 42-3; eye 3.6-4 in head; snout 

 about 3; interorbital about equal to snout; mandibles narrow, the 



