206 



Clupeid Fishes oj the Genus Pellonula d)c. 



The above description is based on one of the types, a speci- 

 men of 85 mm. from Coquilhatville, and on the tii^^ure of the 

 larger type-specimen, 160 mm. long. In fclie smaller fisii the 

 gill-rakers are rather longer than the gill-filaments, but in the 

 larger they are said to be much shorter and to number only 

 ]8 on the lower part of the anterior arch ; this may be a 

 m'sprint for 28, or possibly in the adult the anterior gill- 

 rakers may be vestigial. 



7. Stolothkissa, gen. nov. 



Mou h formed as in Pellonula, but teeth in jaws quite 

 small and no teeth on palate or tongue. Abdomen in front 

 of pelvic fins roumled, with the scutes but weakly keeled ; 

 scutes behind pelvic tins strongly keeled and acutely pointed. 

 VertebrjJB 44. 



Slolotlirissa tauganicm, sp. n. (Fig. 2, 2.) 

 Pellonula miodon (part.), Bouleng. Cat. Afr. Fish. i. p. 157 (1909). 



Depth of body about 6 in the length, length o£ head 3|- to 

 4. JSnout rather longer than diameter of eye, which is 3^ 

 in length of head; maxillary not or barely reaching vertical 

 f'Om anterior margin of eye; lower jaw slightly projecting. 

 40 to 42 gill-rakers on lower part of anterior -arcli. About 

 45 scales in a longitudinal and 13 in a transverse series ; 

 ventral .«cutes 13-14 + 8-9. Dorsal 15; origin nearly equi- 

 distant from end of snout and base of caudal, Anal 17. 

 Pelvics below or a little in advance of middle of dorsal. 

 Lateral band broad. 



Tanganyika. 



Four specimens, 80 to 95 mm. in total length, from Vua 

 and N dan vie. 



Fio-. 2. 



Heads of 1, Liynnothrissa miodon, 2. Siolothrissa ta7)ganicee (x 2). 



