Cichlid Genera Uotroculus, Oe )iilja;:;iH, if-*. o7 



of tlic K)wcr lip not contiimous ; clicck with 4-7 scries of 

 scales; 1(5 ^ill-nikcrs on tiic lower part of anterior arch. 

 Scales 29-31 [i^,, \\ or 2 between lateral line and anterior 

 rays of soft dorsal, those of the thoracic rcj^ion small. 

 Dorsal (XIV) XV-XVI U-IO, the spines subctjnal from the 

 lonrth or fifth, the last A the len},'th of head. Anal 111 G-7. 

 Soft dorsal and anal not scaly at the base, more or less 

 ])r.)dneed. Pectoral as lonj^ as or longer than the head, 

 extending to above the origin of anal. Candal truncate. 

 Caudal peduncle nearly as long as deep. Olivaceous; sides 

 of the head with light blue spots ; soft dorsal with alternate 

 light and dark spots; sometimes a dark spot on the upper 

 part of the base of caudal. 

 K.Amazon; Guiana. 



1. (127 mm.) t\-pe of Guiana. Sir R. Schombiufjk. 



•S'. mncruUpis. 



2. ("•} una ) Lago de Maximo. Mus. Comp. ZodI. 



3. (l."50 mm.) Coarv. Mus. Comp. Zool, 



4. (2(H) mm.) Tetl",?". ])r. Uacb. 



5. (220 mm. J Coary. I'rof. A. Aga-ssiz. 

 G. Skeleton. Coary. I'rof. A. Ag;wsiz. 



8. Geophagus brusiliensis. 



Chromis Irasilienm, Quoy Sc Gaim. Voy. Uran., Pois.«. p. 286 (1824). 

 Chrovtis uuipiinctnta, Castelu. Anim. Am. Sud, Poiss. p. 1;J, pi. viii. 



fig. 2 (18.VJ). 

 Chrotiiis uiiiinactdata, Casteln. /. c. pi. vii. fig. 2. 

 Chromis of/scura, Casteln. t. c. p. 14, pi, vi. tig. 3. 

 Acara bra.'it'/ifnais, tiiinth. Cat. Fish. iv. p. 278 (1802). 

 Aciira {/i/i)ifi(tp<'7un, Giinth. /. c. 

 Acara ohsctira, Gunth. t. c. p. 281. 

 Acara lanjiunctafa, Giinth. t. r. p. 283. 

 Grophafju-i brasilicnsis, Kner, ISovara Fische, p. 22G, pi. x. fig. .3 (1869) ; 



Hens. Arch. f. Nat. 1870, p. oU; Steind. Sitzb. Ak. Wien, Ix.\. 1874, 



11. oil, pi.*, ii. ii iii. ; Cope, Proc. Am. Phil. 8oc. xxxiii. 1804, p. 100 ; 

 Mlfgr. y\6m. Soo. Zool. f>ance, xvi. 1903, p. 192 (1904). 

 Geo))ha(/HS r/uib'/otus, lli'ns. t. c. p. 00. 

 (ieophdtjus f/iticp/ialus, liens, t, c. p. 03. 

 Geophayus labiulus, lions. /. c. p. 04. 

 Geophagus scifumophiliis, liens, t. c. p. Go. 

 Geophagus pi/ynifcns, Hens. t. c. p. 08. 

 Geophagus ohsaira, Pellegr. t. c. p. 193. 



Depth of body 1 %-2'i in the length, length of head about '^. 

 Snout 2-3q in the length of head, diameter of eye 2^-."} A, 

 interorljitai width 2r|-3.i, depth of pneorbital 2r-ii,. Ma.v- 

 illary extending to brlow anterior mai'giii of eye in the 

 young, not in the adult; jaws equal anteriorly; fold of the 

 h)wer lip often continuous in the young, not in the adult ; 

 cheek with 1-7 scries of scales ; 'J-12 gdl-rakcrs on the 



