GKAMMATOTRIA. — TREMATOCARA. 455 



imifortn or with irregular darker blotches ; a brown opercular spot ; 

 a brown spot sometimes present at the root of the caudal ; dorsal 

 greyish with round light spots and finely edged with black ; anal and 

 ventrals yellowish. 



Total length 210 millim. 



Lake Tanganyika. — Type in Congo Museum, Tervueren. 



1. Ad. Niamkolo. Dr. W. A. dunnington (C). 



2. Skol. 



iJ. Ad. Kasawa. „ 



4. Ad. Kilewa B;.y. Dr. L. Stappers (C). 



5. Ad. Moliro. „ 



6. Ad. Kapainpa. „ 



25. TEEMATOCARA. 



Bouleng. Tr. Zool. Soc. xv. 1899, p. 89, and Poiss. Bass. ( 'ungo, p. 444 (1901) ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 3G5. 



Body moderately elongate ; scales cycloid ; a single lateral line, the 

 upper, reduced to a few tubules. Teeth very minute, conical, in a 

 narrow band ; maxillary entirely concealed under the prseorbital when 

 the mouth is closed. Nasal, frontal, pne- and suborbital, praeopercular, 

 and mandibular bones with very large and deep cavities separated by 

 narrow septa and covered with a thin skin. Dorsal with 9 to 12 spines, 

 anal with 3. Vertebrge 31 (12 + 19). 



Lake Tanganyika. 



Si/no2)sis of the Species. 



D. IX-X 11 ; A. Ill 10 ; Sc. 28-30 gj 10-lG gill- 

 rakers on lower part of anterior arch ; caudal [p. 455. 

 peduncle 1^ times as long as deep 1. T. mar<jinatum,'Q\g\-., 



D. X 11-12 ; A. Ill 10; Sc. 29-30^; 20-21 gill- 

 rakers ; caudal peduncle 1^ times as long as [p. 45(). 



deep 2.7'. nigrifrons, Blgr., 



D. X-XII 9-11 ; A. Ill 7-8 ; Sc. 30-32 J ; 17-18 



gill-rakers ; caudal peduncle nearly twice as [p. 457. 



long as deep 3. 7'. miimacnlatiim, l^lgi*") 



1. TREMATOCARA MARGINATUM. 

 Bouleng. Tr. Zool. Soc. xv. 1899, p. 89, pi. xix. fig. 1, Ann. Mu.s. Congo, Zool. i. 

 p. 142, pi. liv. fig. 1 (1900), and Poiss. Bass. Congo, p. 44 i (1901) ; Pellegr. 

 Mem. Soc. Zool. Prance, xvi. 1904, p. 3GG ; Bouleng. Tr. Zool: Soc. xvii. 

 1906, p. 570. 



