20t5 



Clupeid Fishes oj the Genus Pellonula d&c. 



TIio above cK'scri|)tion is based on one of the types, a speci- 

 men of 85 mm. from Coqnilhatville, and on the fii>-ui-e of tlie 

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

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

 larger they are said to be much shorter and to numbtn- only 

 38 on file lower part of the anterior arch ; tliis may be a 

 msprint for 2S, or possibly in the adult the anterior gill- 

 rakers may be vestigial. 



7. Stolothrissa, gen. noy. 



Moil h formed as in Pellonula, but teeth in jaw? quite 

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

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

 scutes behind pelvic fins strongly keeled and acutely pointed. 

 VtrtebriB 44. 



Stolothrissa tangani'cce, sp. n. (Fig, 2,2.) 

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



Depth of body about 6 in the length, length of head 3^ to 

 4. Snoiit rather longer than diameter of eye, which is o^ 

 in length of head; maxillary not or barely reaching vertical 

 fiom anterior margin of eye; lower jaw slightly projecting. 

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

 45 scales in a longitudinal and 13 in a transver^^e series ; 

 ventral scutes 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 Do mm. in total length, from Vua 

 arid Mdauvie. 



Fig. 2. 



1. 2. 



Heads of 1. Lhnnothris^a miodon, 2. Stolothrissu ianganiccB (x 2). 



