i6j 
He Hijlory of ANIMALS. 
PeElen coftdtus , ftriatus , tuberculofus ruber auriculas incequalibus. 
The red , coftated\ ftriated, and tuberculofe PeElen , unequal ears . 
This is a very large and fine fpecies ; it is four inches long, about as much in dia¬ 
meter, and of a figure approaching to circular, but deeply and regularly finuated round 
the edges, and but little elevated on the back : the colour of the fhell is a deep red, 
with an admixture of a purplifh-brown ; it is very rare there are any variegations on 
it j when there are, they are of a paler red or whitifh : there are nine large and regu¬ 
lar ribs on the furface j they are broad, deprefled, and ftriated, and have alfo feveral 
undulated protuberances on them, and fome more regular ones, which are rounded, 
and fome of them open at the top : the ears are large, but one of them is confiderably 
more fo titan the other. 
It is frequent on the ftiores of fome parts of the Mediterranean. 
PeElen echinatus auriculis incequalibus. 
The echinated PeElen , with unequal ears . 
i ■ .. 
This is an elegant fpecies, and is one of thofe called by authors Semi-aurite, there 
being only one of the ears large, the other feeming but a rudiment of one : it is of an 
oblong and fomewhat ovated form, but flat; it’s length is two inches and a quarter; 
it’s breadth, in the krgeft part, which is about the middle, is about an inch and three 
quarters; from this part it continues to form a rounded and flightly finuated verge one 
way, and the other way it grows fmaller, till it forms an obtufe point; on one fide 
of this there fiands a very large and fair ear, on the other there appear, as it were, 
only the remains of a truncated or broken one; but, when the fhell is ever fo entire, 
this ear is never of more than a fourth part of the length of the other : the whole 
furface of the fhell is formed into fine and flender ribs; there are about twenty-feven 
of them on it, and the fpaces they leave between them are very inconfiderable : each of 
thefe ribs is lightly ftriated, and is befet with a number of fharp prominences, or fhort 
fpines from the verge, to two thirds of the length of the (hell: the ground colour is 
a beautiful red, and the fpines and part of the ribs are white. 
It is not unfrequent on the coafts of many parts of the Mediterranean. 
PeElen rubefcens flavo et albo variegatus, coftis pau- 
cioribus. 
The variegated PeElen , with fewer ribs . 
mantle 
This is the moft elegant of all the family of the Pedtens: it is three inches long, 
and nearly as much in breadth; the verge is regularly and beautifully finuated, and the 
head is furnifhed with two large and beautiful ears, nearly of the fame bignefs : there 
are about thirteen ribs on the furface; they are broad, and fomewhat elevated in the 
middle, and leave fair fpaces between them : the ground colour of the fhell is a ftrong 
and beautiful red ; the edges are orange-coloured, and the furface is every-where beau¬ 
tifully variegated with yellow and white : the head of the fhell is fomewhat paler than 
the reft, and the ears are very beautifully variegated. 
It is a native of the European Seas, but is not common. 
PeElen rubefcens , coftis deprejfs 3 albo eleganter variegatus . 
The low-ribbed ~, red PeElen , variegated with white . 
Scallop* 
This alfo is an extreamly elegant fpecies: it is about two inches long, and nearly 
as much in breadth, and has on the furface about fifteen ribs; they are broad, depref- 
fed, and placed at nearly equal diftances from one another: the valves are very little 
elevated, and the ears are moderately large, and one a little bigger than the other; 
the ground colour of the fhell is red, but this, in all the degrees, between the deepeft 
purple and the paleft flefh colour, in the feveral fpecimens: it|is fometimes uniform and 
uninterrupted, but more frequently it is variegated in an elegant manner, with white 
difpofed in irregular blotches. 
It 
