OPHIDIHLE. HI 



body, and three-eighths of the length of the head. The caudal lobes are entirely 

 scaleless, and the upper is contained thrice and a quarter in the length of the body. 



Colour silvery, with longitudinal lines as in G. acinaces, but much more conspicuous. 



Length 6f inches. 



Aden. Zanzibar. 



373. Gerres oyena. [383.] 



Labrus oyena, Forsk. p. 35. 



Smaris oyena, R'tipp. Atl. p. 11, t. 3. f. 2. 



Gerres oyena, Cuv. fy Vol. vi. p. 472; Gilnth. Fish. iv. p. 261. 



Aden. Zanzibar. Mozambique. Bed Sea. Indian Ocean. 



Family CHROMIDiE. 



CHROMIS, Cuv. 



374. Chromis niloticus. [123, 305.] 



Labrus niloticus, Hasselqu. p. 392. 



Chromis niloticus, Cuv. Regne Anim.; Gilnth. Fish. iv. p. 267. 



Pangani River. Nile. Natal. 



Order ANACANTHINI. 

 Family OPHIDILOE. 



FIERASFER, Cuv. 



375. Fierasfer neglectus. [464.] 



Fierasfer neglectus, Peters, Wiegm. Arch. 1855, p. 260; Gilnth. Fish. iv. p. 382. 



The length of the head is one-eighth of the total, and its greatest width is rather more 

 than one-third of the length. Gill-opening very wide, leaving nearly the whole of the 

 isthmus exposed. Vent slightly in advance of the pectorals. Dorsal very inconspicuous ; 

 anal low but distinct. Teeth in villiform bands on the jaws, the outer series being 

 somewhat larger ; two rather small canines in the front of the upper jaw ; three very 

 large, compressed, curved teeth on the vomer. 



Colour light, spotted with brown, each spot on the body with a minute black point 

 in the centre ; a silvery band along the anterior portion of the lateral line. 



Length 3^ inches. 



Zanzibar. Mozambique. 



