Cichlid G( ncni lii'frociilii.^^ G.'0j)lia;,'il3, (f-;\ 53 



about piiirs of (lark vertical stripes on each side; a large 

 (lark spot on the niid.lie of the side; tins greyish, uxorc or 

 less distinct light spots on the sott dorsal and candal. 

 Paragnay. 



1. (88 mm.) tyi»i i>f f^!. (luockcitnsjn'/iosus. Paraguay. Dr. TfiiK-tz. 



Dr. R. (Jestro, el" the (itnoi Mnsenni, has veiy kindly 

 lent the type ot" the speeies, whith measures 10 !• nun. in 

 total length and is included in the ahove dcseripli^jn. 

 Perugia's description is in some respects inaccurate. 



Htros centralis, llolmherg (Rev. Arg. i. IHDl, p. 18.'}), 

 from Argentina, is a species of doubtlul position j)laeed hy 

 I'ellegrin in Acara, but it may prove to be a Ucoj/hcif/ns 

 allied to G. Balzani. D. Xiv'll. A. Ill S-U. 8e. 2 1 ,'. 

 Cheek with 5 scries of scales. Depth of body i the total 

 length (with caudal). 



2. Gcuphuyus gymnoyenys. 



GeopluKjHS (fipiiuoffeinis, Ilensel, Arcli. f. Nat. 1870, ]i. (»] ; Pelli jrr. 



M6m. SoV. Zuoi. l-Vance, xvi. Ili03, i). 194 (1904). 

 Acara inimita, Ilensel. <. c. p. 71 ; l'elle;rr. t. c. p. J 78. 

 Oeop^at/iis cainuni^, (Joi^e, I'roc. Am. Phil. Soc. xx.uii. 1804, p. lO.'J, 



pi. ix. tig. 17. 

 Gcophaytis bnisiliensis (non Quo}' & Gaim.), Eigenm. &, Biav, Ami. Ac. 



N. York, vii. 18!»4, p. Ol3. 



Depth of body 2|-2.i. in the length, length of head 3. 

 Snout 3 in the length of head, diameter of eye oh, inter- 

 orbital width 3^, depth of pneorbital 3. Maxillary extending 

 nearly to below the eye ; jaws equal anteriorly ; lold of the 

 lower lip not continuous ; cheek naked except for 2 or 3 

 scales below the eye ; b-8 gill-rakers on the lower part of 

 anterior arch. Scales 30 ^^'^,„ H or 2 between lateral line 

 and anterior ravs of soft dorsal, those of the thoracic region 

 small. DorsarXill-XlV (X\^ 9) 10-11, the spines only 

 slightly increasing from the fourth, the last nearly ^ the 

 length of head. Anal 111 (8) 9. Dorsal and anal tins 

 sealeless. Pectoral longer than the head, extending nearly 

 to above middle of anal. Caudal slightly emarginate. 

 Caudal peduncle 1-1 .'j as long as deep. Brownish, with a 

 large pearly spot on each scale and series of similar spots on 

 the vertical fins; a dark vertical bar below the origin of the 

 dorsal, a dark blotch on the middle of the side. 



Rio (Jrande do Sul; Montevideo. 



1-1'. (1l'»j ami 1:20 mm.) l!io Cliaude do .Sul. Dr. II. voii llKiiiij.'. 



