South- American Cichlid Genus Acara. 33o 



4. Acara jiaraguayens'is. 



Acara paraquayevsis, Eigenm. & Kennedy, Proc. Ac. Philad. Iv. 1903, 

 p. 534; Pellegr. M»§m. Soc. Zool. France, xvi. 1903, p. 17o (1904). 



Depth of body 2^-2^ iu tlie length, length of head 2^-2J. 

 Snout shorter than postorbitul part of head. Diameter of 

 eye 2^-^^ in the length of head, interorbital width 2^3. 

 Depth of pipeorbital equal to diameter o£ eye or less. Max- 

 illary extending to the vertical from anterior margin of eye; 

 jaws equal anteriorly or the lower the shorter; fold of the 

 lower lip not continuous ; cheek with 3 series of scales ; 

 prseoperculum scaleless ; 6 gill-rakers on the lower part of 

 anterior arch. Scales 24-26 ^, 1 or 1| between lateral line 

 and anterior rays of soft dorsal. Dorsal XIV (XIII-XV) 

 9-10, commencing above the opercular cleft, the spines sub- 

 equal from the fourth to the twelfth, which are more than 

 I the length of head, thence slightly increasing to the last, 

 which is ^ the length of head ; longest soft rays extending 

 nearly to middle of caudal. Anal III 7 (6-8). Dorsal and 

 anal fins scaleless. Pectoral a little longer than the head; 

 ventral extending beyond origin of anal, sometimes to the 

 posterior end of base of anal. Caudal rounded. Caudal 

 peduncle |-f as long as deep. Body with about 7 dark 

 cross-bars, the third bearing a large blackish blotch below 

 the seventh to the tenth scales of the lateral line ; a dark 

 longitudinal stripe from eye to lateral blotch ; a dark vertical 

 stripe below the eye ; a dark spot on the upper part of the 

 base of caudal ; soft dorsal with oblique dark stripes or series 

 of spots posteriorly. 



R. Paraguay. 



1. (07 mm.) Corumbo, Matto Grosso. Spencer Moore, Esq. 



2. (79 mm.) Descalvados, Matto Grosso. Dr. Ternetz. 

 3-5. (49-71 mm.) Carandasinho, Matto Grosso. L)r. A. Borelli. 



5. Acara put chr a. 



Cychlasotna pulchrum, Gill, Ann. Lye. N. York, vi. 1858, p. 382. 

 Acara coerideopunctata, var. latijrons, Steiud. Denksehr. Ak. Wien, 



xxxix. 1879, p. 27. 

 Acara pidchra (part.), Pellegr. M^m. Soc. Zool. France, xvi. 1903, 



p. 176 (1904). 



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

 Snout shorter than postorbital part of head. Diameter of 

 eve 3^-3^ in the length of head, interorbital width 2]^-2f. 

 Depth of prajorbital a little less than diameter of eye. Max- 

 illary extending to the vertical from anterior margin of eye ; 



