72 Annals of the Carnegie Museum. 



Parodon piracicaba Eigenmann, Proc. U. S. Nat. Mus., Vol. XXXIII, 1907, p. 6, 

 (Piracicaba, Province Sao Paulo, Brazil); Reports Princeton Univ. Exp. Pata- 

 gonia, Vol. Ill, 1910, p. 423. 



Habitat. — Basin of the Tiete. 

 9292 a-c, I. U. M. 1 12-127 mm. Piracicaba, von Ihering. Types. 



6588 a, C. M. 150 mm. Piracicaba, July 23, 1908. Haseman. 

 5705 a-e, C. M. 61-125 mm. Salto Avanhandava, above the falls. 



Sept. 14, 1908. Haseman. 

 12660 a, I. U. M. 93 mm. Puerto Bertoni, Alto Parana. Bertoni. 



Head 5 (4.5 in the smallest); depth 4.33-4.75; D. 10-12; A. 8.1; 

 P. 14; scales 4-40 to 43-3; eye 3.6-4 in the head, snout about 3, 

 equal to interorbital; depth of caudal peduncle equals one-half the 

 depth at the dorsal. 



Dorsal and ventral profiles about equally arched. Four premaxil- 

 lary and two maxillary teeth; origin of dorsal about equidistant from 

 snout and middle of adipose or some point behind the adipose in the 

 young, highest dorsal ray about equal to head less half the opercle, its 

 margin obliquely truncate, the longest ray scarcely projecting be^'ond 

 tip of last ray; end of anal about on vertical from origin of adipose 

 in adult; height of anal a little greater or a little less than length of 

 head. 



A dark stripe from tip of snout along lateral line to end of middle 

 caudal rays, obscure on head, well marked on sides; a second band, 

 narrower and less intense between first and second scale below dorsal 

 from occiput to adipose dorsal; a silvery band below the lateral band; 

 one to three dusky spots along the middle of the back in front of the 

 dorsal, usually obscure or absent in the adult; dark shades across the 

 back just in front of the adipose, between dorsal and adipose, at the 

 dorsal, and at the nape, a partial band confined to the sides between 

 the bands at the dorsal and at the nape. These cross-shades are 

 well marked in some of the young, very obscure or absent in the adult. 



2. Apareiodon itapicuruensis Eigenmann & Henn. (Plate XI, fig. 2.) 



5804 a, C. I\I. Type. 78 mm. Rio Paiaia, tributary of Rio Ita- 

 picuru. Nov. 8, 1907. Haseman. 



5805 a-c, C. M. Paratypes, 62-72 mm. Same place and date. 



5806 a-e, C. M.; 13542 «-c, I. U. M. Paratypes, 46-66 mm. Que- 

 imadas, Rio Itapicurii, March 2, 1908. Haseman, 



