SYNODOJNTiS. 



451 



broad, with obtuse posterior processes. Humeral process with granular 

 and vermicular rugosities, obtusely pointed, not extending so far back 



as occipito-nucbal process. Dor- 

 1 : : sal I 7 ; spine f length of head, 



curved, striated, smooth in front, 

 feebly serrated behind. Adipose 

 dorsal low, its base f its distance 

 from rayed dorsal. Anal IV 8. 

 Pectoral spine as long as dorsal, 

 scarcely serrated on outer border, 

 rather feebly on inner. Caudal 





tmSSg^s 



W 



: -. 



^ruvi ^t as fe 



Si/no'hmtis vailbniti. 

 Type, after Vaillant (I. c). I. 



deeply notched. Brownish, with darker roundish spots. 

 Total length 580 millim. 

 Upper Ubanghi.— Type (stuffed) in Paris Museum. 



41. SYNODONTIS XIPHIAS. 

 Giinth. Cat. Fish. v. p. 215 (1864), and Study Fish. p. 573, fig. (1880); Vaill. N. 

 Arch. Mus. (3) viii. 1896, p. 117. 

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

 Head nearly twice as long as broad, rugose, granulate above from 

 between the eyes; snout 2J times as long as postocular part of head, 

 terminating in an acutely pointed appendage; eye supero-lateral, 

 10 times in length of head, 2£ times in interorbital width ; lips 

 moderately developed; prsem axillary teeth forming a short and broad 

 band; movable mandibular teeth minute, 8 in number. Maxillary 



2g2 



