306 CnEOMIDES. 



is two-elevenths of the total length, the length of the head one- 

 foiirth. 

 Brazil. 



a. Thirteen inches long. River Capin. Purchased of Mr. Stevens. 



This species very much resembles Or. Johanna, hut the snout is 

 comparatively veiy short, one-third of the length of the head. The 

 cleft of the mouth is much broader than long, and the inner margins 

 of the mandibles and interopercles do not touch each other in the 

 median line. There is a compressed, cutting, scaly, cartilaginous 

 excrescence, like an adipose fin, on the back of the tail, near the base 

 of the caudal. We cannot say whether this is merely accidental, or 

 a specific character. The specimen is uniform broAvn. 



2. Crenicichla Johanna. 



? Nhaquunda, Marcgr. p. 171. 



? Perca brasiliensis, Bl. vi. p. 84. tab. 31(i fig. 2. 



Ciclila brasiliensis, Bl. Schn. p. 339. 



Creniciclila vittata, Heck. Brasil. Fluss-Fische, p. 417. 



lenticulata, Heck. ibid. p. 419. 



adspersa, Heck. ibid. p. 421. 



lugiibris, Heck. ibid. p. 423. 



funebris. Heck. ibid. p. 424. 



Johanna, Heck. ibid. p. 425. 



^•T^7- ^^-g^a- L- lat. 100-120. 

 About fiifteen series of scales between the origin of the dorsal fin 

 and the lateral hne. Snout moderately produced, its length being- 

 somewhat more than the width of the interorbital space. The height 

 of the body is one-fifth of the total length, the length of the head 

 two-sevenths. 



Var. a. vittata. A black band runs from the snout, through the 

 caudal spot, to the extremity of the caudal; a black vertical spot 

 below the eye ; upper parts of the head with blackish dots and 

 streaks. 

 a. Half-grown. From the Collection of the College of Surgeons. 



Var. /3. stngata. A pair of brown streaks along the middle of the 

 body to the caudal spot, the upper streak continued on through the 

 eye to the snout. Another streak along the upper portion of the 

 lateral line ; an undulated brown band along the back. Upper part 

 of the head with series of round black spots and with a longitudinal 

 streak, which is forked posteriorly. Vei-tical fins with broad black 

 marginal bands. 



h, c-e. Adult. River Capin. Piu'chased of Mr. Stevens. 

 /. Half-grown. River Cupai (800 miles from the sea). Purchased 

 of Mr. Stevens. 



Var. y. lenticulata. A band, formed by eight or nine irregidax 

 blotches, along the upper part of the body ; head superiorly and 



