Z be Hifory ^ANIMALS, 163 
gated Tellina. 3. The fmooth, fiat Tellina; with elegant white fafcia?. 4. The 
hmple coloured, deep brown, hairy Tellina. 5. The fhorter, coriaceous Tellina, of 
the New England lakes. 6. The broader and flatter Tellina, of the Azores iflands. 
7. The narrow, oblong, coriaceous Tellina, from the banks of Newfoundland. 8. The 
deep brown, round-ended, coriaceous Tellina. 9. The pointed-ended, coriaceous 
Tellina : all thefe coriaceous kinds, when cleaned of their outer rough coat, fhew ele¬ 
gant variegations, red and white, blue and white, and the like,' and are ufually met 
with in that ftate in our cabinets. 
4. Of the oblong Mytuli, with the extremities unlike, which are alfo called Muf- 
cles by authors, we have the following, 1. The reddifh-brown, roftrated Mytulus. 
2. The yellow, oblong, and roftrated Mytulus. 3. The narrow, rounded, and deep 
Mytulus, called the Sheath-mufcle. 4. The long-beaked, lefs hollowed Mytulus. 5. The 
ordinary, deep blue Mytulus. 6. The oblong, flatted, and rough Mytulus, called the 
Cat’s-tongue Shell. 7. The flatted, red and white, variegated Mytulus. 8. The yel¬ 
low, plicated Mytulus. 9. The flat, oval Mytulus, called the Leaf-mufcle by Rumphius. 
10. The oblong, white Mytulus, with a granulated furface. 11. The reddifh, tranf- 
verfely ftriated Mytulus. 12. The violet-coloured Mytulus, with the top ftriated. 13. 
The oblong, reddifh or yellowifh, flat Mytulus, with longitudinal ftrias continued from 
the top to the bafe of the fhell. 
C A R D I A. 
f ' H E Cardia is a fhell formed of two valves, and refembling the figure of a 
heart at cards: the valves are equal and gibbofe, or oiherwife elated ; they have 
no ears or appendages near the head, and are always either furrowed, imbricated, or 
fpinofe. 
Of the Cardias, fome approach to a globofe, others to a triangular figure; others are 
irregularly oblong. 
Cardia tenuis albida cojlis decern excavatis . 
The thin y white Cardia , with ten hollowed ribs on the furface . 
This is an extreamly Angular and elegant fhell • the valves are rounded and very 
deep ; it is three inches in length from the hinge to the oppofite verge, about as much 
in diameter, and but little lefs in depth: the head, where the hinge is placed, is pro¬ 
minent and obtufe, and has much of the figure of the upper part of a heart at cards 5 
there run along each valve, from the head to the verge, ten ridges or coftas ; they are 
very high, of a triangular figure, edged at the top, and continued in the form of denticu- 
lations beyond the verge of the fhell: they are hollow, but their cavity does not com¬ 
municate with that of the fhell; the whole is of a beautiful white, and fo thin, that 
it is tranfparent, when held up to the light. 
We have it from the coafts of many parts of the Eaft Indies, and fometimes from 
South America. 
Cardia prof unde fulcata fpinofa . 
The deeply fulcated and fpinofe Cardia . 
This is a very large and elegant fpecies; it is three inches and a half long, and at 
leaft as much in diameter, and both valves are hollowed and elevated fo much on the 
back, that the thicknefs of the fhell, when clofed, is not much inferior to it’s length; 
the head is rounded and large, and the beaks of the two valves meet in fuch a man¬ 
ner over the hinge, as to give the appearance of a heart: the colour of the fhell is a 
greyifh-white ; it’s furface is very deeply furrowed in a longitudinal diredtion ; the fur¬ 
rows are placed at fome diftance, and the ridges between them are rounded : the pro¬ 
minent back of the fhell is often fmooth or naked, but toward the end and the edges 
there ftand a vaft number of long, fharp, and robuft fpines, fome of them ftraight 
others a little crooked. * 
It is not uncommon on the fhores of the American iflands: I brought more than a 
hundied weight of this fpecies in a foffile ftate, laft fummer, from the ftone pits near 
Yaxley. . 
Cardia 
