The Hiftory ^/ANIMALS. 
Mytulus major utrinque angulatus. 
The large > angulated Mytulus. 
%\)t Carolina 
This is four or five inches in length, an inch and a half in diameter, and nearly as 
much in thicknefs; the head or place of the hinge is fituated very near one of the ex¬ 
tremities of the fhell; this end is the more obtufe, the oppofite one is more pointed ; 
the two valves are exadly of the fame ffiape, and they fhut every-where regularly 
clofe 5 they are deep, and have their middle elevated into an irregular, angular gibbo- 
fity: "the colour of the outfide is yellow, with a faint tinge of purple in fome places: 
within it is of a pearly hue, with much of the purple or violet toward the edges. 
It is brought from South America ; fome very fine ones brought from Carolina have 
given it the general name of the Carolina Mufcle : we have it foffile in England* 
Mytulus deprejftor tegmine coriaeeo. \Z tO&fCtl 
The deprejfed Mytulus , with a coriaceous covering. 
This is one of thofe fpecies which have been called Cunei and Telling by authors, 
fond of diftimftions where there were very little differences: it is two inches in length, 
the tranfverfe way, and not an inch from the hinge or head to the oppofite verge ; 
the hinge is fituated much nearer to one end than to the other, and the fhell is elevated 
into a rounded protuberance in that part; the furface is rough, and of a dufky 
brown; it is covered with a thick, coriaceous coat, furnifhed with a multitude of 
fhort hairs. 
It is frequent in the Mediterranean. 
Mytulus Icevis variegatus gihhofior. 
Thefmooth, variegated , gibboje Mytulus. 
This alfo is one of the cunei of authors • it is two inches from end to end, and near 
an inch and a half from the hinge to the oppofite verge of the fhell; it’s thicknefs is, 
at lealf, three quarters of an inch, both the valves being very convex: the hinge is 
placed near one end, which is large and rounded ; the other is flatter, and terminates 
in a kind of edge : the ground colour of the fhell is whitifh, but it is elegantly varie¬ 
gated with yellow and brown. 
It is a native of the American Seas; we have it very frequently foffile in England. 
Mytulus anguflior fafciatus et variegatus. 
The narrow , fafciated , and variegated Mytulus. 
This is a very elegant and very lingular fhell; it is three inches long, and about one 
inch in diameter: the valves are both confiderably convex, and confequently the fhell 
is as thick as broad. It’s largeft part is near the middle, a little toward the lower 
end; from thence it gradually becomes fmaller to each end, at the head or upper ex¬ 
tremity, at which the hinge is placed; it is terminated by a fmall, obtufe button; at 
the oppofite extremity it is more obtufe : the whole lower part is marked with tranf¬ 
verfe lines or fafciae, fomewhat broad, and funk lower than the reft of the fhell; 
from the middle to the top the furface is more fmooth : the ground colour is a yel- 
lowifh-red, and there are a number of beautiful variegations of a deep purple, on fe- 
veral parts of it, but moftly near the fides. 
It is a native of the South Seas, and is very rare in our collections; the French ca¬ 
binets have fome fine ones: the colours are faint on moft of thefe, but that is owinp- 
J O 
to their having been long wafhed on the fhores, before taken up; they are naturally 
very bright. 
Mytulus cvato-oblongus variegatus Icevis . 
, ovato-oblong , variegated Mytulus. 
This is four inches long, and toward the extremity is two and a half in diameter ; 
from this part it gradually grows fmaller to the head where the hinge is fituated, which 
T t is 
Xi)e purple, flpagel- 
lame fl0ufcle. 
