On a new Barbus/row Cameroon. 



237 



JIab. Indian Sea, off Oman. 



The species may well be called, after its finder, Eobrissus 

 Toinnsendi. 



The following measurements may be of some service : — 



XXVf. — Descrip'ion of a neio Rarbas from Cameroon. 

 By G. A.BouLENGER, F.'R.S. 



The number of recently discovered African Barbels of the 

 group of Barhus Bynni is really surprising. Until a year 

 ago the group was unrepresented in West Africa ; then I 

 described a species, B. Balesii *, allied to the East- African 

 B. tanensis, Gthr., discovered in Cameroon by Mr. G. L. 

 Bates, whilst the description of a second closely allied species, 

 likewise from Cameroon, B. Linnelli, Lonnberg, appeared in 

 the last number of these * Annals ' f. Thanks to the exer- 

 tions of Mr. Bates, I am now able to add a third Cameroon 

 species to the list, 



Barhus micronema. 

 Depth of body 3 times in total length, length of head 4 to 

 4^ times. Snout rounded-subtruncate, 2^ to 3 times in 

 length of head, projecting beyond the mouth, with small 

 pearl-like granules on the sides ; diameter of eye 4^ to 5^ 

 times in length of head, interorbital width twice to twice and 

 one third ; mouth inferior, forming a broken arch, a feebly 

 curved transverse line in front, its width 3 times in length of 

 liead ; lips feebly developed, lower restricted to tli3 sides ; 

 edge of lower jaw forming a blunt keel ; l)arbels one or two 

 on each side, the anterior, if present, quite minute, the poste- 

 rior 4 diameter of eye. Dorsal III 10, last simple ray strong, 

 bony, not serrated, its rigid part § to p. length of head, free 

 edge of the fin strongly emarginate ; its distance from the 

 occiput a little less than its distance from the caudal fin. 



« Vrnc. Zool. Soo. 1003, i. p. i'", pi. iii. {'v': 2. 

 t P. 1--56. 



