Wishes, abdominal. 44. siiurus. 841 
Second dorfal fin fleflty ; lateral line fplnous ; cirri under 
the lower lip eonnefted. 
Inhabits 5 «n«am.- body com prefTed. , , , ,• 
A fingle cirrus each fide the mouth and 4 under the lower up, 
papiilous beneath ; lateral line fubferrate and carinate with 
Ipines; firft ray of the firft dor/al fin ferrate the contrary 
way with the peftoral ; tail forked. 
Dor/. 6 : ptet.^ : vent. 8 ; an. 12: caud. 24 rays. 
Second dorfal fin flelhy ; anal rays 10. 
Inhabits the Nile: 14^ ‘o^g; body brownifli-grey, 
fides of the head blueifh ; end of the nofe, under part of the 
head, peftoral fins and cirri tinged with red, a femicircle of 
reddifli at the commencement of the tail. 
Head large, the hind-part covered with a bone reaching to the 
firft back-fin, and ending each fide in a blunt point ; upper 
■jaw a little longer; teeth in the upper jaw hooked, in the 
lower ftraight; cirri upper 2, not much longer than the 
head, lower 4 fhorter, (lender, unequal ; anterior ray of the 
firft dorfal fin broad at the bafe and lerrate within, a thud of 
its length ; firft ray of the pectoral fin ferrate ; lateral line 
ftraight, marked with little points its whole length, tail 
forked, the rays tranfverlely grooved. Sokini. 
Dor/ 7, o: pe 8 . vent. 7 : an. 10: caud. rays. 
' Second dorfal fin flcfliy ; anal fays it. 
Inhabits rivers of South America znd A/nca; ‘5 'nthee 
long ; body blackifVi-aih, beneath hoary ; it is faid to inflivi 
venomous wounds with tlie Icrrated pec.orai fin. 
Bead broader on the fore-p^rt ; evM oblong, ms golden ; upper 
jaw longer ; witl. :maU (harp teeth ; gdUover of one 
piece; lack ftightly arched, covered with a bony plate, 
carinate brforc the fi-:. and convex behind it; lateral line 
beginning at the nape, a little bent down in the middle ; /ns 
blackifti-afti, ‘the rays bifid ; above the ptcloral a tnangular 
bonef; fleftiy fin and anal lunate, the latter verv long ; le- 
cond ray of the firft dor/al ferrate each fide ; tail bicuipidate. 
Dor/. o : pict. vent. 7 ; an. in caud. 17 rays. 
.Second dorfal fin flelhy ; aii^al 
Inhabits Surinam and Bra/tl. body biacK 
each fide, beneath white ; flefla in great efteem. 
Head depreffed, rounded on the fore-part, a thira part as long as 
the whole body ; /ns all fpotted with black. 
Dor/ 7, o : pect. 11; vent. if. an. 13: caud. 17 rays. 
