202 ^fr. C. T. Regan on the Clupeid Fishes 



Pcecilothrissi congica, sj>. n. 

 PeUonuIa vorax (part.), Bouleng. Cat. Afr. Fish. i. p. 156 (1909). 



Do|ftli of boly 4 in the length, lengtli of head 4j. Snout 

 n little shorter than diameter of eye, which is 2j in length of 

 liead ; jaws equal anteriorly ; maxillary extending to vertical 

 from anterior edge of eye; maxillary teeth quite distinct; 

 19 gill-rakers on lower part of anterior arch. 33 scales in a 

 longitudinal series, 8 in a transverse series ; ventral scutes 

 11-12 + 9-10. Dorsal 13; origiji equidi.staut from end of 

 snout and base of caudal. Anal 20-21. Pelvics well in 

 advance of dorsal. Caudal peduncle longer than deep. 

 Lateral band narrow, present only on posterior half of tish. 

 Vertebia3 43. 



Congo. 



Two s{)pcimens, 55 and G.O mm. in total length, from 

 Coqnilhatville and irom Mousembe. 



3. MiCKOTHRissA, Bouleng. 1902. 



Ann. Mus. Congo, Zool. ii, p. 26. 



Scarcely generically distinct from Pellotnila, but tongue 

 toothless, dorsal fin of 12-14 rays and anal of 21 to 2.5, and 

 pf-lvics in advance of dorsal. Scales 38-42/10-12. Ver- 

 tebvse 39-40. 



1. Microthrissa parcii, sp. n. 

 Tellonula vorax (part.), Bouleng. Cat. Afr. Fish. i. p. 156 (1909). 



Depth of body 4 to 5 in the length, length of head about 4. 

 Snout a little shorter than diameter of eye, which is rather 

 more than ^ the lei'gth of bead ; maxillary extending to 

 vertical from anterior edge of eye ; lower jaw a little pro- 

 jecting. 26 or 27 gill-rakers on lower part of anterior arch. 

 40 to 42 scales in a longitudinal series, 10 or 11 in a trans- 

 verse series; ventral scutes 12-13 + 7-8. Dorsal 12-14; 

 origin nearly equidistant from end of snout and base of 

 caudal. Anal 21-23, not extending forward to below dorsal. 

 Pelvics in advance of dorsal. Caudal peduncle longer than 

 deep. 40 vertebrae. 



Upi'er Congo. 



Two specimens of 40 mm. from Coquilhatville and three 

 of 30 mm. from the Tumba Lake. 



