720 MR, C. TATE REGAN ON THE 



origin of dorsal to lateral line. Dorsal XVI 10. Anal III 9 ; 

 third spine S- length of head, a little shorter than last dorsal. 

 Pectoral as long as head, extending beyond origin of anal. 

 Caudal scaly, emarginate. Caudal peduncle as long as deep. 

 Silvery ; an opercular spot. 



A single specimen, 100 mm. in total length (Whyie). 



2. Lethrinops macrorhynchus, sp, n. 



Tilapia letlirinus (part.) Bouleng. Cat. Afr. Fish. iii. p. 254. 



Depth of body 2| in length, length of head 2|. Snout with 

 straight profile, longer than postorbital part of head. Inter- 

 orbital region flat. Diameter of eye 4^ in length of head, 

 interorbital width 4^, depth of prgeorbital 3. Lower jaw pro- 

 jecting ; maxillary ending not far behind nostril ; teeth in 3 

 series. 3 series of scales on cheek. 10 gill-i'akers on lower part 

 of anterior arch. Pharyngeal teeth small. 33 scales in a longi- 

 tudinal series, 5 from origin of dorsal to lateral line. Dorsal 

 XVI 11 ; last spine \ length of head. Anal III 9 ; third spine 

 less than \ head. Pectoral as long as head, extending nearly 

 to middle of anal. Caudal scaly, emarginate. Caudal peduncle 

 1^ as long as deep. A blackish band from nape along upper 

 lateral line to base of caudal. 



A single specimen, 180 mm. long (Whyte). 



3. Lethrinops lethrinus Giinth., 1893. 



Tilapia lethrinus (part.) Bouleng. Cat. Afr. Fish. iii. p. 254, 

 fig. 171. 



Depth of body 2| to 2f in length, length of head 2| to 3. 

 Snout with straight profile, as long as postorbital part of head, 

 Interorbital region flat. Diameter of eye 3| to 4| in length of 

 head, interorbital width 4, prfeorbital depth 3 to 3^. Lower jaw^ 

 slightly projecting ; maxillary extending to between nostril and 

 eye ; teeth in 3 to 5 series. 3 or 4 series of scales on cheek. 

 10 gill-rakers on lower pai-t of anterior arch. Lower pharyngeal 

 with the last few teeth of the two middle series a little enlarged. 

 32 to 34 scales in a longitudinal series, 5 or 6 from origin of 

 dorsal to lateral line. Dorsal XY-XYI 11 ; last spine from 

 less than I to -2 length of head. Anal III 9 ; third spine ^ to |- 

 head. Pectoral a little shorter than head, reaching origin of 

 anal. Caudal densely scaled, emarginate. Caudal peduncle 1^ 

 to 14 as long as deep. A blackish lateral stripe i-unning back- 

 wards above lower lateral line ; sometimes a second above lateral 

 line and a third near edge of back, or these may be represented 

 by series of spots ; dorsal spotted. 



Three specimens, 140 to 200 mm. long (Johnston, Moore). 



