American Ciclltd Genus Ciclilosoma. 339 



operculum, and another from lower part of eye to sub- 

 operculum ; vertical fins obscurely spotted. 

 Lake Nicaragua. 



1-2. (140 and 144 mm.) types Lake Nicaragua. 0. Salvin, Esq. 



of the species. 



65. Cichlosoma spectabile. 



Petenia spectabilis, Steiud. Sitzb. Ak. Wien, Ixxi. 1875, p. 96, pi. iv. 

 Eigenm. & Brav, Ami. Ac. N. York, vii. 1894, p. 015; Pellegr. 

 Mem. Soc. Zool. 'France, xvi. 1903, p. 244 (1904). 



Depth of body lf-2 in the lengtli, length of head 23-2|. 

 Snout as long as eye, the diameter of which is 3|-4 in the 

 length of head and equal to the iuterorbital width. Depth 

 of pr?eorbital ^ the diameter of eye. Maxillary exposed, 

 extending to below the middle of eye; praemaxillary pro- 

 cesses extending about to above posterior margin of eye ; 

 lower jaw projecting; anterior canines strong; cheek with 

 7 or 8 series of scales. Scales 30 ^^. Dorsal XV 12-13, 

 the last spine ^ the length of head, the soft fin in great part 

 covered with small scales. Anal VI 9-10. Pectoral nearly 

 as long as the head. Caudal rounded. Caudal peduncle 

 about § as long as deep. A large dark spot on the middle 

 of the side, a smaller one on the upper part of the base of 

 caudal. 



R. Amazon. 



The types measure up to about 160 mm. in total length. 



This species is closely allied to C. manayuense and C. Dovil, 

 and must certainly be regarded as congeneric with them. 



QQ. Cichlosoma Kraussi. 



Petenia Kraussi, Steind. Denkschr. Ak. ^Yien, xxxix. 1879, p. 28, 

 pi. ii. ; Eigenm. & Brav, Ann. Ac. N. York, vii. 1894, p. 615 ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 244 (1904). 



Depth of body 21-2J in the length, length of head 2f-2§. 

 Snout a little longer than eye, the diameter of which is 

 3|-4:^ in the length of head, iuterorbital width 3^-4. 

 Depth of prseorbital | the diameter of eye. Lower jaw 

 projecting; maxillary exposed, extending to below middle of 

 eye; prsemaxillary processes extending to above the anterior 

 part of operculum ; anterior canines strong. Cheek with 

 7 or 8 series of scales; 10 or 11 gill-rakers on the lower 

 part of anterior arch. Scales above the lateral line smaller 

 than those below it, about 42 in a longitudinal series above, 

 about 30 below the lateral line ; scales in a transverse 



