338 • Annals of the Carnegie Museum. 



No. 2541, 1.6 cm., Asuncion, Paraguay, March 29, 1909. 



In several of these specimens the snout is as long as the post-orbital 

 portion of the head; pectorals 1.16 times the length of the head; depth 

 2.16 to 2.33; D. XIV, 8 to 10; A. Ill, 6 to 8; scales 3-22 to 24-7 or 8; 



pores ' " ; head 2.66; eye 3; five gill-rakers on the lower anterior arch. 



o 



21. A. flavescens (Cope). 



Habitat. — Ambiacu. No specimens were obtained. 



22. A. subocularis (Cope). 



No. 25420-6, 6.5 and 7.8 cm., Manaos, Nov. 29, 1909. 

 No. 2543, II cm., Manaos, Nov. 27, 1909. 



This specimen has prolonged dorsal and anal rays, which extend 

 beyond the tip of the caudal. Vertical fins more or less white-spotted. 

 No. 2544a-c, 1.3 to 3 cm., Manaos, Nov. 29, 1909. 



In some cases the fold of the lower lip is slightly interrupted. 

 This character has little value in any of the cichlids examined. There 

 are complete series of all the stages from a free to an interrupted fold 

 in the same locality amongst specimens of the same size. The snout 

 of the smaller is two-fifths the length of the head. The larger speci- 

 mens agree with Regan's description. 



23. A, zamorensis (Regan). 



Habitat. — Ecuadorian Amazonia. No specimens were obtained. 



24. A. duopunctata, sp. nov. (Plate LVI.) 



No. 2573. type, 9.5 cm., Manaos, Nov. 29, 1909. 

 No. 2574, cotype, 7.5 cm., Manaos, Nov. 29, 1909. 



D. XV, 9 to II; A. Ill, 7; scales 3-26-9; pores 9-10; depth 2.25 

 to 2.33; head about 3; eye 3 in head; less than preorbital, and equal to 

 the interorbital in the smaller, and less than the interorbital space in 

 the larger specimen; three rows of scales on the cheeks; two rows of 

 scales between the lateral line and the first dorsal rays; caudal peduncle 

 seven-eighths as long as deep; pectoral fin distinctly longer than the 

 head; snout as long as the postorbital portion of the head; maxillaries 

 not quite extending to the vertical from anterior margin of eye; fold of 

 lips not continuous; preoperculum scaleless; dorsal and anal fins scale- 

 less; six gill-rakers on the lower anterior arch; the fourth dorsal spine 

 a little more than one-third the length of the head, and the last dorsal 

 si)ine fully one-half the length of the same; the dorsal spines almost 

 subequal from the fifth; dorsal and anal rays extending beyond 



