SCIIUBOTZIA.— XEXOCHROMIS. 501 



3j to 3^ times in lengtli of head, equal to iiiterorbital width, and twice 

 prseoibital depth ; mouth with rather thick lips, extending to below 

 anterior border of eye or a little beyond ; 50 to 54 teeth in outer series 

 of upper jaw ; 3 or 4 series of scales on the cheek, width of scaly 

 part less than diameter of eye. Gill-rakers moderately long, 8 or 9 

 on lower part of anterior arch. Dorsal XV-XVI 8-9 ; spines increasing 

 in length to the last, which measures | to ^ length of head ; longest soft 

 rays f length of head. Anal III 7-8. Pectoral as long as head, 

 extending to vertical of origin of anal. Ventral reaching origin of 

 anal or beyond. Caudal truncate. Caudal peduncle Ij t ) ItV times as 

 long as deep. Scales finely denticulate, 31-32 ^"t^ ; lateral lines ^3iV 

 Male yellowish brown in front, brown behind, with dark brown bars ; 

 two dark brown bars across the snout, a broader bar from eye to eye 

 across the back of the head, and a vertical bar below anterior half of 

 eye; fins yellowish, anal with two large bright, dark-edged ocellar spots. 

 Female pale brown above and silvery white beneath, without markings 

 except a dark opercular spot; dorsal and caudal pale greyish, with or 

 without small round darker spots, other fins white. 



Total length 95 millim. 



Lake Albert Edward. — Types "in Berlin Musemm. 



1. One of the types. L. Albeit Edward. Dr. H. Schubotz (C.) ; 



German C. Atrican Exped. 



39. XENOCHROMIS. 

 Bouleng. Ann. Mns. Oungo, Zool. i. p. 12!') (1899), and Poiss. Bass. Congo, 

 p. 48G (1901); Pellegr. Mem. Soc. Zool. Pranee. xvi. 190 1, p. ;5r.3. 



Body elongate, covered with small cycloid scales; two lateral lines, 

 the upper nearly complete. Teeth in a single series, small, compressed, 

 lamellar and a little concave in front, obtusely pointed, strongly curved, 

 e(|ual in si/.e, close together and pressed against the edge of the jaw ; 

 maxillary exposed. Dorsal with 16 or 17 spines, anal with 3. Parietal 

 and occipital crests very strong, extending to between the orbits. 

 Vertebrfe 35 (17 + 18). 



Lake Tan<ian\ika. 



33 Bou Il/IIl 



