<Ji2 tiSHES. CHONDROPTERIGIOUS. 66. Acipenfe^' 
Authtnus. Snout fubulate, ftraight, 4 times as long as the dianJ^ 
of the mouth ; cirri not much nearer the mouth ; 
lip* 
entire. 
fel' 
Inhabits the Cafpian fca anti fometinies the Baltic : very 
dom exceeds 3 feet long ; body elongated, covered v 
fmall prickles ; head varied with cinereous and yelfosv ; 
Htdlatus, 
dark afh ; belly white ; fpots on the body vol'y ; bon)' P‘ 
On the batk and Tides a little prominent and pointed, thok 
the belly flat. 
Head long, flat above and beneath ; eyes round, iris _ g”* 
gill-cover of one radiate piece ; upper Jins cinerr 
lower red. 
39> 20, vent: 23, an. 22, caud, 76 rays. 
Snout fpatulate, fubrecurved, 6 times as long as the 
verfe diameter of the mouth ; cirri nearer the ’ 
lips entire. 
Inhabits the Cafpian fea ; 4 — 5 feet long; flenderer 
laft, with the rudiments of fmall fcales irregularly 
back covered with numerous whitifti, rough, flellate C" 
ties; body angulate with ,5 rows of bony plates, 
back row, 3 5 lefler ones in each of tlie fide rows, and 
hind the vent ; ah^ive blackifli, gradually growing broW 
beneath white, and fpcckled with white and variegated 
neath the lateral plates. 
Hafo.- 
Ihad nearly fquare, and covered with pointed tuberck* ^ 
dentate ftars; fnout a fpan long, very rough with 
Itreaks, fmooth and mucous beneath at the bafe ; mouth 
than in others, emiffilc ; auditory pores large, lunate! 
very obfcurely 6-fided; fins long; tail falcate, the upp'^’^ 
vifion very long. 
Snout very obtufe, fhorter than the diameter of the mf** 
cirri nearer the mouth ; lips entire. , 
Inhabits the Danubcy Volga and other Rttfian rivers, 
Cafpian ki-, 9 — 24 feet long; body above black, [If 
yellow, covered with bony tubercles which difappeat ^ {of 
> fifli grows older; the fkin is hard and tough, and vk 
cairiage-traces. 
67. 
) 
