BATIIY BATES. 4o 



j< 



spines, anal with 3 ; 14 to 18 soft rays in the anal. Occipital and 

 ])arietal crests stronf^, not extending forward to beyond posterior part 

 of interorbital region. Vertebrae o-3-36 *. 

 Lake Tfinganyika. 



Sf/no2)sis of the Species. 



1. Spinous dorsal not notched, the posterior spines subequal ; i» to 5 series ot 

 teeth in tfie upper jaw, 3 in the lower. 



A. Interocular width less than diameter of eye. 

 D. XV-XVI 11-12; A. in U; Sc. 65-75.-|=|q; 



12-1.'} ojll-rakers on lower part of anterior 



arch \. B. grawri, Stdr., p. 4!'>7. 



1). XIV-XV 15-10 ; A. Ill lG-17 ; Sc. 78-100 



3^ ; l.Vlo gill-rakers 2. 7i. >mr, Blgr., p. 4:58. 



1). XIV 14; A. Ill 17 ; Sc. 85 ^l ; 9 gill-rakers . 3. D. horni, Stdr., p. 440. 



B. Interocular width at least equal to diameter of eye. 

 D. XV 14; A. Ill 14-15; Sc. 120-125 ^-^^^ ; 



12-13 oill-rukers 4. Z?. vittahts, Blgr., p. 140. 



D. XVI-XVII lG-17 ; A. Ill 17-18 ; Sc. 140-150 



.^v^!^., ; 1(3-19 o ill-rakers 5. 7^. /aWrt/(/5, BIgr., p. 44 I. 



II. Spinous dorsal notched, the last spine twice as long as the |)enultinui(e ; 

 2 or 3 series of teeth in the upper jaw, 2 in the lower. 

 1). XIII 15-1(1; A. Ill lG-17; Sc. 90-95 .;!:'* J, ; 



11-12 gill-rakers (".. /?. />»//n)r, BIgr., p. -1 t2. 



1. BATHYBATES GRAUERl. 



Stcind. Sirzl). Ak. AVien, cxx. i. 1911, p. 1171, pi. i. 



Depth of body 3^ to 3| times in total length, length of head 2h times. 

 Snout longer than postocular part of head ; lower jaw projecting ; eye 

 If to 1| times in length of snout, 3f to 4 times in length of head, nearly 

 twice interorbital width ; month not extending to below anterior border 

 of eye ; 4 series of teeth in the upper jaw ; 7 scries of scales on the 

 cheek. 12 or 13 gill-rakers on lower part of {interior arch. Dorsal 

 XV-XVI 11-12; spines subequal, f length of head; longest soft rays 

 I length of head. Anal III 14 ; spines slender, third as long as dorsaN. 

 Pectoral about § length of head, extending to \rrtical of r>rigin of an;i1. 



» 10-17+i;i = :5.") 3(; in n. fffo.r, ir,-f-:i() = :^G ill P. ,.,i„or. 



29 Bou II/III 



