158 MR. C. TATE REGAN ON SOUTH-AMERICAN [Mcar. 7, 



D. XX-XXIII 12-13. A. Ill 8-10; diameter of eye i the 



length of head (in a specimen of 169 mm.) 5. lacustris. 



D. XX-XXir 10-11. A. Ill 7-8 ; diameter of eye \ the length 



of head (in a specimen of 225 mm.) 6. macropJithalmws. 



3. Maxillaiy not extending to the vertical from anterior 

 margin of eye; 57 scales in a longitudinal series 

 below the lateral line. D. XVIIl-XX 11-13. 



A. Ill 7-9 7. tvaUacii. 



B. 84-130 scales in a longitudinal series below the lateral 

 line. 

 1. Maxillary not extending to below the ej^e: snout 

 more than ^ the length of head. 

 a. Interorbital width 4|-5 in the length of head. 

 1). XXIII 13-14. A. Ill 9-10. 84-95 scales in a longitudinal 



series below the lateral line 8. vittata. 



D. XXIV 14. A. Ill 11. 113 scales in a longitudinal series 



below the lateral line 9. acutirostris. 



h. Interorbital width 3i in the length of head. 



D. XXIV-XXV 13-14. A. Ill 9-10 10. muUispinosa. 



2.* Maxillary extending to below anterior margin of eye 



or a little beyond ; snout -J- the length of head or 



less. 



a. Scales above posterior part of upper lateral line 



ctenoid. D. XXII-XXIII 15-17. A. Ill 10-12. 



93-108 scales in a longitudinal series below the lateral line, 



14-16 between first dorsal spine and lateral line ; snout 



3|-3| in the length of head 11. strigata. 



106-113 scales in a longitudinal series below the lateral line, 

 16-17 between first dorsal spine and lateral line; snout 



3-3^ in the length of head 12. Itignbris. 



120 scales in a longitudinal series below the lateral line, 20 



between first dorsal spine and lateral line 13. ciiicta. 



h. Scales above upper lateral line all cycloid ; 112- 

 130 in a longitudinal series below the lateral line. 

 D. XXI-XXIII 17-19. A. Ill 11-12. 

 18-20 scales between first dorsal spine and lateral line ; maxil- 

 lary extending a little beyond anterior margin of ej^e 14. ornata. 



15 or 16 scales between first dorsal spine and lateral line; 



maxillary extending to below anterior margin of eye 15. lenticulata. 



II. Scales cycloid, small ; nostril nearer to tip of snout than 



to eye \Q. jolianna. 



1 , Crenicichla lepidota. 



Crenicichla lepidota Heck. Ann. Mus. Wien, ii. 1840, p. 429 ; 

 Hens. Arch. f. N'a,t..l870, p. 55; Steind. Sitzb. Ak. Wien, Ixx. 

 1874, p. 520 ; Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 372 

 (1904). 



Depth of body 3-4 in the length, length of head 3. Diameter 

 of eye 34-5 in the length of head, length of snout 3|— 4 and equal 

 to the interorbital width. Nostril nearer to eye than to tip of 

 snout. Maxillary extending to below anterior ^ of eye or beyond ; 

 depth of prseorbital f the diameter of eye or less. Anterior teeth 



* Crenicichla hrasiliensis var. marmorata (Pellegr. Mem. Soc. Zool. Prance, xvi. 

 1903, p. 383, fig.) is probably a valid species belonging to this section, but is 

 insufficiently described. D. XXIV 17. A. Ill 11. Scales 116 {i. e. below the 

 lateral line) ^. Yellowish ; an irregular brown band at the base of the dorsal ; a 

 series of brown spots and blotches along the middle of the side. The Ferca 

 hrasiUensis of Bloch does not resemble any known species of Crenicichla and may 

 represent a young example of CichJa temensis Humb. 



