412 



SILURID^.. 



5-8. Hgr. & \g. 



9. Arl. 

 10. Skel. 



11-U. Ad. & hor. 

 15-16, Ad. 



17. Ad. 



18. Ad. 



ii)-21. Ad. & hor. 



Between Khartum and the 



Sobat. 

 Balir Zeraf. 



Near Tonga, White Nile. 

 Mouth of L. No. 

 Gondokoro, Bahr-el-Gebel. 

 Fajao, Victoria Nile. 

 Omo R. 

 L. Rudolf at Galeba. 



Mr. P. C. Zaphiro (C) ; 



W.N. McMillan, Esq. (P.), 

 Capt. S. Flower (P.). 

 L. Loat, Esq. (C). 



J. S. Budgett, Esq. (P.). 

 Ui-. Donaldson Smith (C). 

 ]Mr. P. C. Zaphiro (C.) ; 

 W.N.McMillan, Es.p (P.). 



10. SYNODONTIS CAUDOVITTATUS. 



Bouleng. Ann. & Mag. N. H. (7) viii. 1901, p. 10, and Fish. Nile, p. 3G1, pi. Ixvi. 

 (1907). 



Depth of body 3 to 3^ times in total length, length of head, 3^ to 3f 

 times. Head a little longer than broad, rugose, granulate above; 

 snout rounded, as long as or slightly longer than postocular part of 



Fig. 310. 



iSi/n'idu)Uis C(tu(h}i't(l(iti(s. 

 Type (F. N.). |. 



head ; eye supero-lateral, A^ to 5 times in length of head, 2 to 2J 

 times in width of interorbital region ; lips moderately developed ; prae- 

 maxillary teeth forming a short, broad band ; movable mandibular teeth 



