2g6 Hijlory ^ ANIMALS. 
the mouth is large and rounded, and is fituated on the under part of the head : the 
teeth are fmall, but extreamly numerous; there are not lefs than twenty rows of 
them : the body is considerably thicker than that of the former fpeeies; the back is of 
a dufky greyifh-blue, with a number of fpots, fome of which are yellow, but the 
greater part black ; there is alfo a white fpot on the top of the head : the belly is of a 
filvery white, and the hides of a gradual decreafe of the olive tinge to this abfolute 
whitenefs : the whole under furface of the ffir is fmooth; there are no fins, except 
on the back ; there are two there, the anterior fhort, the pofterior longer. 
We have this fpecis in fome of our rivers toward the fea, but it is lefs frequent than 
the former. All the Ichthyological writers have defcribed it, and the greater 
part of them have called it, fimply, Lampetra ; Gefner calls it, Lampreda marina ; 
Salvian, Lampetra maculofa et bicubitalis; Aldrovand and Jonfion, Lampetra major; 
Bellonius and Gefner, Muftela five Lampetra. The Italians call it Lampreda, and 
we the Lamprey, or the Lamprey-eel. This fpeeies feems to be the ’Ep/si^i? of Op- 
pian, and of Galen. The other Greek writers call it Mvpaim Trompa j .but 
moil of the authors of that nation have not been at all acquainted with it, as Galen, 
who faw it at Rome, obferves that it was never found in the feas about Greece. 
P etromyzon corpore annulofo y appendicibus utrinque duobus ad os . 
The annulated P etromyzon^ with two appendages on each fide at the mouth . 
This is a very fmall fpeeies; it rarely exceeds eight inches in length, and is very 
fender, in proportion : the head is fmall, rounded, and obtufe ; the eyes are extream¬ 
ly fmall, and fcarce vifible ; the mouth is very fmall, and formed like the round 
opening of a purfe under the head : the noftrils are not diftinguifhable; the body is 
very fender and rounded, and not equal and fmooth as in the other fpeeies, but an- 
nulated in the manner of that of the infedl-kind, only not fo deeply : the back is of a 
dufky olive colour ; the Tides have a tinge of yellownefs; the belly is white and fil¬ 
very ; there are apertures to the lungs, as in the other fpeeies, feven on each fide, and 
two at the top of the head : the belly is fmooth, and without fins, but toward the 
end of the back there are two; the anterior one fhort, the hinder oblong, and both 
fupported by cartilaginous rays. What diftinguifhes this from both the other fpeeies 
the mof obvioufy, however, is, that it has on each fide, at the verge of the mouth, 
two appendages. 
This is not unfrequent with us, but it is much more common in many other of the 
northern parts of Europe : all the Ichthyologifs have defcribed it. Swenkfeldt calls 
it Lampetra minima ccenofa. Willughby, Lampetra caeca oculis carens argentine Ein 
Blinder Neunogen, id ef, Enneophthalmos caecus; and Ray calls it Lampetra caeca 
feu oculis carens. 
ACCIPENSER. 
T HERE is only one foramen or aperture for the gills on each fide in the Acci¬ 
penfer : the mouth is fituated on the under part of the head, and has the'ap¬ 
pearance of a tube ; there are no teeth in it: the body is of an oblong form, and the 
number of fins is feven. 
Accipenfer corpore tuber cults fpinofis afpero. 5 Cf )0 
The Accipenfer , with the body armed with rough tubercles . S>tUt 0 £Ott> 
This is a very large fifh ; it grows to fourteen, fixteen, or eighteen feet in length, 
though the greater number are caught much fmaller : the head is large, oblong, and 
acute at the roftrurxi; on the extremity of the under jaw there are four cirri or beards: 
the eyes are large, and ftand at a great difiance from the extremity of the roftrum : 
their iris is of a filvery white ; the pupil is of a greenifh black ; the noftrils have each a 
double aperture : the head is of a fome what angulated figure: the fkin is rough ; the 
belly is flat and fmooth, but on the upper furface there are five feries of fpinofe tu¬ 
bercles, one on the middle of the back, and two others on each fide of that : thefe 
confift of different numbers of tubercles, and there are, befide thefe, two tubercles on 
A 3 the 
