FISHES FROM UGANDA 0!) 



17. r*elmiitoclir"oitiis speUii, Blor. 

 J in] a. 



18. X"*elirici toolii'oniis rij>oiiia.uus, sp. n. (Pi. II. flg. 3). 



Depth of body 2 Vj to '^ times in total length , len,L;-th of 

 head 2 '/^ to "2 -/^ times. Head twice or a little over twice as 

 long as broad; snout rounded, as long as broad, with feeljly 

 convex upper profile, 1 V4 fo 1 ^/^ times as long as eye, which 

 is 3 7+ f" ^^ '/a times in length of head, 1 to \ '/.^ times in 

 interorljital width , and exceeds least depth of praeorbital ; jaws 

 eijual in front; maxillary extending to below anterior border of 

 eye or not ({uite so far; teeth conical, in 3 or 4 series, outer 

 rather small, inner minute; or /i series of scales on the cheek, 

 the depth of the scaly part below the eye equal to diameter of 

 latter. Gill-rakers rather short , 7 to 9 on lower part of anterior 

 ardi, tlie longest bitid. Dorsal XV-XVI 8-10, spines increasing in 

 length to the last, which measures '/s ^ -/- length of head; 

 longest soft rays '/o f» ^/s length df iiead. Anal III 8-10; third 

 spine longest, as long as and stronger than longest dorsal. Pectoral 

 pointed, 7i ^o V.5 It^ngth of head, reaching vertical of origin of 

 anal, or a little beyond. Ventral reaching origin of anal or a 

 little beyond. Caudal truncate. Caudal peduncle 1 '/a ^^ 1 V2 times 

 as long as deep. Scales feebly denticulate, 30-33 77^; lateral 

 lines 'fj^~- Brownish, uniform or with (3 or 7 leather indistinct 

 darker cross bands; a dark vertical bar may be present below 

 anterior third of eye ; ventrals ).)lackish in the male , at least at 

 the base, yellowish in the female. 



Total length ÌM) millim. 



Eight specimens from Jinja. 



Closely allied to P. microdon, Blgr. 



19. Pelmatooliroiiiis oljesus, Blgr. 

 Bussu. 



20. Heiiiitilapia Ibayoni, Blgr. 

 Jinja. 



