364 Annals of the Carnegie Museum, 



No. 27790-^, 2.2 to 6 cm., Sao Joao da Barra, Rio Parahyba, June 24, 



1908. 

 No. 2780, thirty-nine specimens, i to 8 cm., Campos, Rio Parahyba, 



June 13 and 15, 1908. 

 No. 2781a, 1.8 cm., Xiririca, Dec. 5, 1908. 



No. 27816— f, 3.4 to 4 cm., Iguape, Rio Ribeira, Dec. 15, 1908. 

 No.,2782a-^, 2.5 to 6.4 cm., Minas, Rio Doce, May 26, 1908. 

 No. 27830-6, 2.7 cm., Sao Joao da Barra, Rio Parahyba, June 22, 



1908. 

 No. 27840-^, 2.5 to 4.5 cm., Tocas, Lagoa Feia, June 27, 1908. 

 No. 2785, 3.5 cm., Rio Pelao, near Santos, July 31, 1908. 

 No. 2786c-/, 2.3 to 3.5 cm., Minas, Rio Doce, May 27, 1908. 

 No. 2787, 1.8 cm., Xiririca, Rio Ribeira da Iguape, Dec. 5, 1908. 

 No. 2788, 1 1.2 cm., Lagoa Feia, Rio de Janeiro, June i'6, 1908. 



This specimen is very dark, and has peculiar tubercles on the gill- 

 arches, which appear to be eggs, but are not. 

 No. 27890-^, 4 to 9 cm., Morretes, Parana, Jan. 2, 1909. 



The largest specimen has the caudal peduncle longer than deep; 

 depth 2.5, like the Raiz da Serra specimens, which also came from 

 a rapid rocky stream. 

 No. 279oa-c, 3.4-4 cm., Morretes, Parana, Jan. 4, 1909. 



These smaller specimens are much more like the typical C. brasili- 

 ensis, having deeper bodies and shorter caudal peduncles than the 

 larger examples from the same place; hence I infer that the change in 

 the shape and form with age in such environment is due to individual 

 adaptation and is not a fixed characteristic. 

 No. 2791, II cm., Porto Alegre, Rio Grande do Sul, January 21, 1909. 



This specimen agrees with G. hrachyurus in all details, excepting 

 the length of the pectorals, a very variable character. 

 68. Geophagus brasiliensis iporangensis, var. nov. (Plate LXXI.) 

 No. 2792a-e, 4.5-8.7 cm., Iporanga. From a mountain stream of 



the Rio Ribeira da Iguape, Dec. i, 1909. Type, No. 2792G. 



D. XV, 11; A. Ill; depth 2.5; head 2.75; snout 2.12; diameter of 

 eye 4 in the head; equal to the preorbital and interorbital space; 

 maxillaries extending about midway between the posterior nares and 

 the front margins of the eyes; fold of the lower lip interrupted; five series 

 of scales on the cheeks; nine gill-rakers on the lower anterior arch; 

 scales 4-28-9; one to two scales between the lateral line and the first 

 dorsal rays; dorsal spines increase till the last one, which is two-fifths 



