242 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



3 scales above upper lateral line to spinous doi-sal origin and 9 below 

 to spinous anal origin; 15 prcdorsal scales; snout 3| in head from 

 upper jaw tip; eye, 3|; maxillary, 3; interorbital, 3. Well com- 

 pressed, deepest medially, caudal peduncle not developed or rudi- 

 mentary. Head width nearly half its length. Snout broadly conic, 

 length I its widtli. Eye round, hind edge midway in head length. 

 Mouth small, moderately inclined; lower jaw veiy slightlj' protruded. 

 Maxillary to eye. Bands of small conic teeth in jaws, front ones 

 little longer, none on mouth roof. Interorbital convex. Preorbital 

 and preopercle entire; hind edges of opercle and subopercle spines- 

 cent. Rakers, 5 short firm points, half of filaments, which about 

 two-fifths of eye. Scales with about 22 basal striae and fine circuli, 

 all finely ctenoid. All rayed vertical fins densely scaled over greater 

 portions basally. Cheek with five rows of scales. Tubes in lateral 

 line simple, well exposed, not out over caudal base. Last dorsal 

 spine 2| in head; sixth dorsal ray, 1|; last anal spine, 2|; sixth anal 

 ray, If; caudal, IJ: pectoral, U; ventral, 2. Color in alcohol dark 

 brown generally. Round blackish blotch at end of lower lateral hue 

 over two scales at least. Head below and breast dull brown. Iris 

 slaty. Length, 84 mm. C. 



TILAPIA GALILAEA (Linnaens). 



Head, 2^ to 2f ; depth, 2 to 2^; D. XV, one XIV, 12 to 14; A 

 III, 11 or 12; scales, 19 in upper section of lateral line, 11 or 12 

 in lower section to caudal base, and 2 more out on latter; 4 scales 

 above upper section of lateral line to spinous doreal origin, 10 below 

 to spinous anal origin; predorsal scales, 10 to 13; snout, 2| to 3 

 in head; eye, 3^ to 3^; maxillary, 3f to 3f; interorbital, 3 to 3|. 

 Head width, 2 in its length. Snout convex; length, long as width 

 or little less. Maxillary ver}- slightly beyond nostril, well short of 

 eye. Teeth rather slender, incisor-like; ends notched; outer rather 

 large. Interorbital Uttle convex. Rakers, 4+20, short, lanceo- 

 late, about 2 in filaments and latter 1| in eye. Scales cycloid, extend 

 on caudal basally. Circuli moderate, mostlj^ complete, basal radii 

 13 or 14 and apical denticles slightly developed or short. Fourth 

 dorsal spine about 2^ in head; third anal spine, 2| to 2§; caudal, 1| 

 to 1\; pectoral, 1^^; ventral spine, 2^ to 2?. Color in alcohol 

 brov/nish, paler below, with about seven indistinct darker brownish 

 bands on back above. Fins all pale, Avith dark blotch at origin of 

 soft dorsal and two or three oblique dark streaks on latter forward. 

 Caudal slightly emarginate, with hind edge dusky. Length, 55 to 

 66 mm. Three examples. C. 



TILAI'IA HEUDELOTI A. Dumeril. 



One adult. C. 



