142 Field Columbian Museum — Zoology, Vol. VII. 



The absence of better fish is the only excuse for eating it at Lake 

 Atitlan. 



Lake Amatitlan (350), 30 to 100 mm.; Lake Atitlan (55), 30 to 

 100 mm. 



Cichlasoma milleri sp. nov. 



Type no. 5529, F. M. N. H.; length 195 mm.; El Rancho, Guate- 

 mala. 



Head 3.0 to 3.2; depth 2.4 to 2.6; D. xvii to xix, 10 to 12; A. 

 vi, 8 or 9; scales 7-32-12. Body oblong, dorsal region little elevated; 

 profile curved, moderately steep, mouth low, moderate; maxillary not 

 reaching vertical from anterior margin of orbit; its length 3.0 to 3.5 

 in head; lips thick, the lower with margin free, though slightly less 

 free in center than sides; lower jaw slightly the shorter, mandible 2.6 

 to 2.7 in head; preorbital 3.7 to 4.3; postorbital 2.4 to 2.6; snout 2.1 

 to 2.5 ; interorbital 2.6 to 2.9 ; diameter of eye 3.9 to 4.6 ; eye to mar- 

 gin of subopercle 2.4 to 2.6; snout to scales on nape 1.8 to 2.3 ; origin 

 of dorsal to tip of snout 2.4 to 2.5 in body; base of anal 3.9 to 4.2; 

 dorsal spines rather low, the last few spines much the longest; last 

 dorsal spine 2.1 to 2.4 in head, last anal spine 2.1 to 2.4 in head; pec- 

 toral and ventral fins short, their tips not reaching to first anal spine; 

 length of pectoral 1.3 to 1.4 in head; ventral 1.3 to 1.4; length of 

 caudal peduncle 2.3 to 2.5 in head, its depth 2.2 to 2.3 ; caudal fin trun- 

 cate ; no prominent nuchal hump developed on any of the specimens ; 

 gill rakers short, 2 -f- 7- 



Color olivaceous, the larger individuals (over 115 mm.) much dark- 

 er, sides with six dark vertical bars; a dark lateral band prominent 

 on smaller (less than 115 mm.) individuals, not well defined on the 

 larger individuals, no lateral or humeral spot, sides in larger individuals 

 with light lines along the rows of scales; a dark caudal spot; soft 

 dorsal and anal and caudal fins with light and brownish spots; a 

 narrow dark line from end of maxillar}^ on cheek below eye ; usually 

 a few dark spots on cheeks. Named for Mr. Newton Miller, who has 

 much increased our knowledge of Guatemalan Fishes. 



Rio Motagua, El Rancho, Guatemala (14), 32 to 195 mm. Los 

 Amates, Guatemala (i), 224 mm. 



Cichlasoma ellioti (Meek). 



El Rancho (13), 30 to 135 mm. 



Cichlasoma munta^uensis (Giinther). 



One male 200 mm., three females 115 to 163 mm., eight small ones 



