292 



SILURlDiE. 



Depth of body of to 4 times in total length, length of head 4| to 5 

 times. Head 1J to 1^ times as long as broad; snout broad, lower jaw 

 projecting; eye perfectly lateral, 4| to 5J times in length of head, 2\ to 

 3^ times in interorbital width ; width of mouth equal to interorbital 

 width ; vomero-palatine teeth forming an uninterrupted band, which is 

 narrower than the band of prremaxillary teeth. Nasal barbel ^ to ^ 

 length of head, maxillary and outer mandibular f to §, inner mandibular 

 3 to j^. Gill-rakers moderately long, widely set, 10 to 12 on lower part 

 of anterior arch. Dorsal I 6, entirely or nearly entirely in advance of 

 ventrals, 1| to If times as distant from caudal as from end of snout ; 



1>. 237. 



Eiitropius depixssirostris. 

 Type, after Peters (Reise Mossamb.). f . 



its spine slender, very feebly seriated behind in its upper half, much 

 shorter than the head. Anal 50-60, 3 or 4 anterior rays simple, the 

 following gradually decreasing in length. Pectoral not reaching ventral, 

 its spine feebly serrated on inner side, as long as and a little stronger 

 than that of dorsal. Caudal deeply forked, with rounded or obtusely 

 pointed lobes. Caudal peduncle about as long as deep. Greenish or 

 brown above, white beneath, sides sometimes finely speckled with black ; 

 a more or less distinct large dark spot above the pectoral fin. 



Total length 320 millim. 



East and South-east Africa. — Types in Berlin Museum. 



1-2. Hgr. Ngatana, Brit. E. Africa. Prof. J. W. Gregory (P.). 



3. Hgr., one of thu Lofoi, Katanga. Capt. Lemaire (0.). 



types of E. lemairn. 



4. One of the types. Mozambique. Prof. W. Peters (P.). 



