SYNODONTIS. 



451 



ts>- 



Fijr. 338. 



fc^fcdSt^ 



broad, with obtuse posterior processes. Humeral process with granular 

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



as occipito-nucbal process. Dor- 

 sal 17; spine \ length of head, 

 curved, striated, smooth in front, 

 feebly serrated behind. Adipose 

 dorsal low, its base f its distance 

 from rayed dorsal. Anal IV S. 

 Pectoral spine as long as dorsal, 

 scarcely serrated on outer border, 

 rather feebly on inner. Caudal 



m 



^V-'Vi'v-. 



':-.*■•■ :».-v-'^ wr->'-- ■•■■■■■■: -^ l ';-SipSBSfi 



St/nodontis vailliinti. 

 Type, after Vaillant (/. c). 



deeply notched. Brownish, with darker roundish spots. 

 Total length 580 millim. 

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



41. SYXODONTIS XIPHIAS. 



Giinth. Gat. 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 2^ 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 ; prsemaxillary teeth forming a short and broad 

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



2g2 



