EXPLANATION OF PLATES. 



PL. I. — Mugil capito, Cuv., tobar, 0"',192 lonf^. A type of the 

 family Mugilidse of which live species have bten 

 described from the Nile. 



FL. II. — Chromis Niloticus, Hasselq. bolty, siiabar, or mishti 

 O^jWa long. 



PL. III. — Chromis Menzalensis, sp. nov. shabar,- O^.SSS long. 



PL. IV. — Bagrus bayad, Forsk , bayad, 0'",186 long. A type 

 of the family Siluridse. 



All the above plates are from photographs of specimens which' 

 had been preserved in alcohol. 



NOTE. — Any one coming across a s] ccimen of llie fish figured in llie 

 lexl would render a great service liy sending it, fresh or 

 preserved in spirits, to the Medical Scliool, Caii-o. (J. f. M. ) 



