CICHLID FISHES OF LAKE NYASSA. 725 



series, 5 or 6 from origin of dorsal to lateral line. Dorsal XVII- 

 XYIII 11-12; last spine ^ length of head. Anal III 9. 

 Pectoral | length of head. Caudal peduncle 1| as long as deep. 

 Silvery ; back darker ; an opercular spot. 



Description mainly based on a specimen 240 mm. long 

 (^Moore), which has been compared with one of the types, a skin 

 of 220 mm. A skeleton has 36 (18 + 18) vertebrae. 



2. Rhamphochromis ferqx, sp. n. 



'? Hemichromis longicejjs (part.) Giinth. P. Z. S. 1864, p. 313. 



Champsochromis longicejys (part.) Bouleng. Cat. Afr. Fish. iii. 

 p. 434 (1915). 



Depth of body 4 in length, length of head 3. Snout a 

 little less than §■ length of head. Diameter of eye 6 in length 

 of head, interorbital width 4^. Jaws meeting anteriorly ; chin 

 prominent ; teeth strong, 10 to 15 on each side of upper jaw. 

 3 or 4 series of scales on cheek. 38 or 39 scales in a longi- 

 tudinal series, 5 or 6 from origin of dorsal to lateral line. 

 Dorsal XVII 12 ; last spine | length of head. Anal III 10. 

 Pectoral ^ length of head. Caudal peduncle twice as long as 

 deep. Silvery ; back darker ; an opercular spot. 



Two spirit-specimens (i)/oore,jSe??c^«?Z), 200 and 240 mm. in total 

 length. Giinther's second type-specimen of H. longiceps probably 

 belongs to this species. 



3. Rhamphochromis macrophthalmus, sp. n. (PI. VI. fig. 2.) 



Depth of body 4 to 41 in length, length of head 2-|. Diameter 

 of eye 2^ in length of snout, 5 in length of head, equal to 

 interorbital width. 3 or 4 series of scales on cheek. 38 to 40 

 scales in a longitudinal series, 5 to 7 from first dorsal spine to 

 lateral line. Dorsal XVIII-XIX 11-12 ; last spine i length 

 of head. Anal III 10. Pectoral |- length of head. Caudal 

 peduncle twice as long as deep. Silvery ; back darker ; a blackish 

 opercular spot ; dorsal and caudal greyish, pelvics and anal 

 orange. 



Three examples, 200 to 230 mm. in total length [Wood). 



4. Rhamphochromis woodi, sp. n. 



Champsochromis longiceps (part.) Bouleng. Cat. Afr. Fish. iii. 

 p. 434, fig. 296 (1915). 



Depth of body 4 to 4| in length, length of head 2| to 2|. 

 Snout ^ length of head. Diameter of eye 6 to 8 in length of 

 head, interorbital width 4| to 5. Lower jaw projecting. 5 or 6 

 series of scales on cheek. 38 to 40 scales in a longitudinal series, 

 6 or 7 from origin of dorsal to lateral line. Dorsal XVII-XIX 

 11-12; last spine i to i length of head. Anal III 10-11. 

 Pectoral | or a little less than | length of head. Caudal peduncle 



