334 



SILURIDiE. 



1. Hgr., type. 



2. Yg. 



3. Hgr. 



4-5. Ad. & yg. 

 6-7. Yg. 

 8. Skel. 



Lower Congo. 

 Coqnilhatville, Upp. Congo. 

 Kutu, L. Leopold II., Upp. Congo. 

 Monsembe, Upp. Congo. 

 Kondue, Kasai. 

 Albertville, L. Tanganyika. 



Capt. Tuckey (C). 

 M. P. Delliez ((!.). 



Rev. J. H. Weeks (C). 

 M. Lnja (C). 

 Capt. Hecq (C). 



14. CHRYSICHTHYS PUNCTATUS. 

 Eouleng. Ann. Mns. Congo, Zool. i. p. 107, pi. xlii. fig. I (1899), and Poiss. Bass. 

 Congo, p. 287 (1901). 



Depth of body 5 to 5| times in total length, length of head 3 to 3j 

 times. Head moderately depressed, 1^ times as long as broad, rugose 

 above ; occipital process narrow, in contact with interneural shield ; 

 snout rounded, projecting very slightly beyond mouth, about f length 

 of head; eye 4 times in length of head and 1J times in interocular 

 width; width of mouth about \ length of head ; prsemaxillary band of 



Fig. 261. 



Clirysiolithys punctatus. 

 Type (A. M. C). f . 



teeth feebly curved, 4 to 5 times as long as broad ; vomero-pterygoid 

 teeth forming a long and narrow band interrupted in the middle ; nasal 

 barbel a little shorter than eye ; maxillary barbel § to f length of head ; 

 outer mandibular barbel \\ times as long as inner, and f to § length of 

 head. Gill-rakers moderate, 13 on lower part of anterior arch. Dorsal 



