1518 Bulletin 47, United States National Museiim. 



1905. OICHLASOnA FENESTRATUM (Giiiitlier). 



Head 3; depth 2. D. XVI or XVII, 12; A. V or VI, 9; scales 14-33-13. 

 Vertebrae 14-|-15. Head as high as long; snout of moderate extent, 

 slightly elevated, the preorbital somewhat -wider than orbit; cleft of 

 mouth small, horizontal, Jaws equal anteriorly; eye below upper profile, 

 nearer to extremity of snout than to that of operculum ; iuterorbital 

 space convex, wider than orbit. Vertical fins very slightly scaly at base; 

 dorsal spines moderately strong, length of twelfth | that of head ; the soft 

 dorsal and anal pointed, their points not extending to middle of caudal; 

 caudal rounded ; distance betw(?en dorsal and caudal less than greatest 

 depth of free portion of tail; pectoral shorter than head; ventral pointed. 

 Fold of lower lip interrupted in middle; 5 series of scales on cheek. 

 Brownish green, with 6 dark cross bands, less distinct in old individuals 

 than in young ones, crossing a deep-black longitudinal band which rnns 

 from above pectoral to middle of root of caudal; vertical and ventral 

 fins blackish, darkest at ])ase and margins. Length 6 inches. Elvers of 

 southern Mexico, {fencstraiiis, with window-like or lattice-like markings.) 



Chromis fenestrata, Gunther, Proc. Zool. Soc. Lond. I860, :US, Rio de la Lana, Mexico. 



(Coll. M. Salle.) 

 Heros fenestratus, Gunther, Cat., iv, 28G, 1862. 



IttOO. CKHLASOMA MONTEZUMA (neckel). 



D. XVI, 11; A. V, — ; lateral line 30. Fold of lower lip interrupted in 

 middle; 5 series of scales on cheek. Body with 6 dark cross bands, the 

 last around root of caudal and marked Avith a black spot. (Heckel.) 

 Mexico. A scarcely known species. (Montezuma, the last king of the 



Aztecs.) 



TJerog montezuma, Heckel, Bra.sil. Fliiss-Fisohe, 38:{, 1S40, Mexico; Gunther, Cat., iv, 



1007. CICHLASOMA MA^RACANTHUM (Giiutlur). 



Head 3; depth 11. D. XIV or XV, 12 or 13; A. V, 9 or 10; scales 

 5i-31-15. Head rather higher than long, najie convex, but upper profile 

 showing a slight concavity above snout. Snout of rather considerable 

 extent, height of preorbital i more than width of orbit; cleft of mouth 

 slightly oblique, preorbital almost covering posterior end of maxillary, 

 which does not attain line of front margin of eye; jaws rather protractile, 

 armed with a broad band of villiform teeth, those of outer series enlarged ; 

 interoibital space convex, nearly twice width of orbit; eye somewhat 

 nearer to end of operculum than to that of snout; base of soft dorsal and 

 anal with a few small scales; dorsal and anal spines strong; first dorsal 

 spine a little before vertical from upper end of gill opening; twelfth dorsal 

 spine a little less than i length of head in adults, fifteenth longest, and 

 more than I length of head; soft dorsal and anal much elevated, middle 

 rays produced ; caudal rounded ; jiectoral rounded, about as long as head ; 

 first ventral ray slightly prolonged; free portion of tail nearly twice as 

 deep as long. Lower lip interrupted in middle. Scales on cheek in 5 

 series. Greenish or brownish olive; fins black; a more or less distinct 



