I 
FISHES. ABDOMINAL. 42. Silurus. 84# 
h 
^‘^achus. Dorfal fin fingle, 60-rayed. 
Inhabits Afia and Africa : tail entire. 
Dorf.6o'. p(ct, g: vent. 61 an. 48 : caud. 14 rays. 
Dorfal fin fingle, ii -rayed. 
Inhabits Surinam : tail forked. 
Dorf. pea. vent. 6 , an. 11, caud. 17 rays. 
'"‘Us. 
Second dorfal finflefliy, anal 20-rayed. 
Inhabits AJia and America. 
Dorf.1,0, pect. vent. 6 — 8, an. 20, caud, 17 raj's. 
Second dorfal fin flelhy, anal 8- rayed ; tail forked. 
Inhabits Syria ; cirri ihorter than the head. 
Dor/. 1,0: pect. g: vent. 6: an.S: caud. rays. 
Second dorfal fin flefhyj anal lo-rayed. _ . 
Inhabits the Nile: about a yard long ; body cinereous, beneath 
whitilli. above convex. , , 
i /3 depreffed; aVn each fide 4, the outer ones longer, the 
fins bony and ferrate behind, the tips toft. 
Dorf. 10, pect. 11, vent. 6, an. 10, caud. 18 rays. 
Second dorfal fin flefliy, anal 1 2-rayed. 
Inhabits the Nile s about a foot long ; body glaucous. 
Head obtufe, depreffed, with a hollow each fide ^efore the eyes ; 
upper jazo lon^i ® tranfverfe arch of (mall teeth . 
outer cirri of the upper lip very long , lateral hne defeend- 
ing at the beginning and afterwards quite ftraight - above ^e 
*eaoral fins a ftrong retroverted fpme under the Ikm ? 
reddilh, the flefliy one glaucous and long ; tail ftraiglit, .-X- 
tended, dilated towards the tip and bifid. 
Jjorj. ,1, pect. vent. 6, an. ts, caud. 20 rays. 
E. Cirri Of. 
Firft ray of the firft dorfal fin ferrate 1 P^fjotal 
Inhabits ^raiia; body oval about a fpan long, carinate be 
neath before ibe ventral fiti : probably not of this genus. 
