160 



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



Diameter of eye 3|-5^ in the length of head, length of snont 

 3-3|, interorbital width 3-4. Nostril nearer to eye than to tip 

 of snout. Maxillary extending to beloAv anterior ^ of eye ; depth 

 of prfeorbital ^^ the diameter of eye. Anterior teeth forming 

 4 or 5 series in the upper jav/, 3 or 4 in the lower. 9-11 gill- 

 rakers on the lower part of anterior arch. Scales denticulated 

 except on the head and the lower parts of thorax and abdomen, 



60-73 i^zi^, 50-62 in a longitudinal series below the lateral line, 

 3-4§ between last dorsal spine and lateral line, 2 or 3 between 

 upper and lower lateral lines. Lateral line 22-26 -f- 9-12. Dorsal 

 XVII-XX 13-16, the spines subequal from about the eighth, the 

 last |— I the length of head. Anal III 8-10. Pectoral about -|, 

 ventral |— | the length of head. Caudal peduncle | to as long as 

 deep. Olivaceous ; a dark stripe from eye to extremity of operculum, 

 sometimes continued forward on the snout, rarely edged with 

 white above and below ; often a dark spot or oblique stripe below 

 the eye ; body with or without white spots, which may be numerous 

 and well-developed ; sometimes a continuous dark longitudinal 

 band from operculum to caudal, which may be represented by a 

 series of blotches or by a single blotch, or sometimes an ocellated 

 spot, above the pectoral ; a dark spot, often ocellated, on the upper 

 part of the base of caudal ; dorsal and anal sometimes with a 

 narrow dark edge ; spinous dorsal sometimes with an intramarginal 

 series of blackish spots, one on each interradial membrane ; soft 

 dorsal and caudal often with altei-nate series of light and dark spots. 

 E,. Amazon ; Guiana ; Trinidad ; Rio Grande do Sul. 



1. 



2-4. 



5,6. 



7. 



8,9. 



10, 11. 



12. 



13-15. 



16-18. 



19. 



20-22. 



23. 



24, 25. 



26. 



27. 



28. 



29-35. 



(133 mm.) 

 (99-145 mm.) 

 (89 and 103 mm.) 

 (200 mm.) 

 (171 and 226 mm.) 

 (73 and 108 mm.) 

 (217 mm.) 

 (170-271 mm.) 

 (150-201 mm.) 

 (141 mm.) 

 (165-211 mm.) 

 (66 mm.) 



(154 and 205 mm.) 

 (104 mm.) 

 (155 mm.) 

 (185 mm.) 

 (153-251 mm.) 



Brit. Guiana. 

 Demerara. 

 Brit. Guiana. 



Guiana. 

 R. Cupai. 

 R. Essequibo. 



Surinam. 



Brit. Guiana. 



Berbice. 



Tabatinga. 



Rio Grande do Sul. 



Trinidad. 



Sir R. Scbomburgk. 

 Dr. Hancock. 



Mr. Ehrhardt. 

 College of Surgeons. 

 Stuttgart Mus. 



Mr. Kappler. 

 C. W. Cottam, Esq. 

 J. G. Beckford, Esq. 

 Mus. Comp. Zool. 

 Dr. H. von Ihering. 

 P. W. Urich, Esq. 

 L. Guppy, Esq. 



3. CrENICICHLA LUCIUS. 



Grenicichla lucius Cope, Proc. Am. Phil. Soc. xi. 1871, p. 570 ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 377 (1904). 



Crenicichla anthurtis Cope, Proc. Ac. Philad. xxiii. 1872, p. 252, 

 pi. x. fig. 1 ; Pellegr. 1. c. 



Depth of body 4-|-5| in the length, length of head 3. Diameter 

 of eye 4|-6 in the length of head, length of snout 33-3|-, inter- 

 orbital width 4-5^. Nostril nearer to eye than to tip of snout. 

 Maxillary extending to below anterior 1 of eye ; depth of 



