232 ^Ir. C. T. Keffan on the South- American 



1. Cichlu occllaris. 



C/W*/n oceZMns, Schneider, Blocb's Syst. Tchth. p. 340 (1801); ISriill. 



& Trosch. in Scliouib. (iuiana, iii. p. 6i'o (18-18) ; Giiuth. Cat. Fish. 



iv. p. 304 (1802); Steind. Denkschr. Mi. Wien, xhi. 1883, p. 3, 



pi. i. fig. 2\ Eifrenm. & Brav, Ann. Ac. N. York, vii. 1804, p. 611 ; 



IVlh^gr. M6m. Soc. Zool. France, xvi. 1903, p. 184 (1904). 

 Cichln iiiohochIus, Apas.s. in Spix, Pise. Bras. p. 100, pi. Ixiii. (1829) ; 



Heck. .\nn. Mus. Wien, ii. 1840, p. 408; Schomb. Fish. Uiiiana, 



ii. p. 197, pi. xxvi. 

 Cichta orhioceiisis, Humboldt, Obs. Zool. ii. p. 107, pi. xlv. fig. 3 (1833) ; 



Schomb. t. c. p. 199. pi. xxvii. 

 Cichta ntafxipens/s, Humboldt, f. c. p. 168 (1833). 

 Cic/ila ai-{/us,\al. in Humboldt, t. c. p. 169; Schomb. t. c, p. 149, 



pi. viii. 

 Ci/chla nigromaciilatn, Schomb. t. c. p. 147, pi. vii.. 

 Ci/chta fi-ifasciafa, Schomb. t. c. p. lol, pi. ix. 

 Acharnes itpecioms, Miill. & Tiojich. t. c. p. 022, and Hor. Ichth. p. 27, 



pi. V. fig. 3 (1849) ; Giinth. o. c. iii. p. 369 (1861). 

 Crenicivhla orinocensis, Giinth. t. c. p. 309. 

 Cichta acetlaris, var. aryiis, I'ellegr. Bull. Mus. Paris, 1902, p. 183. 



Depth of body equal to or greater than the length of head, 

 about 3 in the length. Diameter of eye 3:^-5 .\ in the length 

 of head, length of snout 2^-3^, depth of prseoibital 43-t)^, 

 interorbital width 3j-3|. Maxilhiry extending nearly to 

 below middle of eye (young) or well beyond it (adult). 

 15-17 gill-rakers on the lower part of anterior arch. Scales 

 83-102 ,!!;_^f^. Dorsal XIII-XV, I lC-18, commencing above 

 the axil of pectoral, the third and fourth or fourth and fifth 

 spines the longest, 1— | the length of head ; the soft fin 

 scaleless. Anal III 10-11, covered with scales in the adult. 

 Pectoral ^| the length of head. Caudal slightly emar- 

 giiiate in the young, truncate or sul^truncate and covered 

 Avith scales in the adult. Caudal peduncle ] /.-1| as long as 

 deep. Brownish or olivaceous, with 3 or 4 broad dark cross- 

 bars on the upper part of the body and an ocellus on the 

 upper part of the base of caudal ; cross-bars sometimes 

 replaced by large ocelli ; sometimes a series of small blackish 

 spots which are covered by the pectoial fin; vertical fins 

 Avith alternate light and dark spots. 



Brazil ; Guiana. 



1, 2. (410 and 220 mm.) Brit. Guiana. Sir R. Schomburgk. 



3. (390 mm.) Cudaja. Prof. A. Agassiz. 



4. (97 mm.) ? Zool, Soc. 



5. (173 mm.) ? 



The above are the specimens on which my description is 

 based; in addition there are 28 specimens, all about 60mm. 

 in total length, from Tefi'e, collected by Dr. Bach. In colour 



