Chap. IV. 
gari. 5. T. Arise recurved', tranfverfe ; lateral teeth obfo- 
lete. Indiah ocean. 
fragilis. * 6. T. ovate, white, gibbous, with tranfverfe, re- 
curved Arise ; beaks yellowifh. European Teas, Bri- 
tain. 
deprejfa. * 7. T. very thick, depreffed, oblong, with tranfverfe, 
concentric Arise. Europe, Britain. 
crnff.i. * 8. T. very thick, broad, depreffed ; concentric Arise 
numerous, i-| inch broad, and long. Europe, Bri- 
tain. 
rngofa. 9. T. wrinkles tranfverfely undulated, hinged with 
two lateral teeth. Indian and American feas. 
infiaia. 10. T. rounded, thick, gibbous ; Arise longitudinal, 
fine. 
multangu- n. T. ovate, ventricofe, inequivalve, with deeuffa- 
■ lata. ted Arise. Tranquebar. 
papyracea. 12. T. thin, ovate, ventricofe, and tranfverfely Avi- 
ated ; wrinkles on the fore part, plaited ; 3 lines long, 
and an inch and a half broad. Guinea. 
gippofa. 13. T. angular, ventricofe, and finely Aria ted tranf- 
verfely. 
incequila - 14. T. equi valve, roundiAr, white, with a few tranf- 
tera. verfe Arise round the edges. 
knorii. 15. T. rich red colour, with a violet margin ; 
inches broad, and i-J long. 
born:!. 16. T. tranfverfely Ariated •, one fide bent and red- 
difh, with red rays 5 -J inch long, and 2 inches broad. 
pufilla. 17. T. ovate, ventricofe, thin, tranfverfely Ariated, 
very minute. Rivers of Europe, 
maculata. * 18. T. fubovate, thickiAi, with decuffated Arise, and 
irregular fpots ; figure of the fpots different in different 
Aiells, but exactly fimilar in both valves of the fame 
Aiell. Denbigh in England. 
rivalis. * 19. T. obliquely fubovate, tranfverfely grooved ; fize 
of a pea. River Avon near Salifbury. 
B. Ovate , comprejfed. 
albida. 20. T. oval, fmooth, with prominent membranes ; 
fize of an egg. European ocean. 
foliacea. 21. T. oval, with rough pubes, flattened fides, fer- 
rated ; i-^-inch long, and 3 broad. Indian ocean. 
planata. * 22 T. ovate, compreffed, tranfverfely fubfiriated, 
frnooth, with acute margins. European and Mediter- 
ranean feas ; common on the Ihores of Britain. 
variabilis. * 23. T. ovate, oblong, with pale purple eyes. Eu- 
ropean and Atlantic feas, Britain. 
Lcvigata. 24. T. ovate, fmooth, lateral teeth, margined. Eu- 
ropean and Indian feas. 
radiate. * 25. T. oblong ; Arise faint, longitudinal. European 
and American feas, Britain. 
rojirata. 26. T. oblong, the fore-part produced into an angular 
beak. Indian ocean. 
incequival- 27. T. oblong, produced into a beak, upper valve 
vis. flat, lower convex ; length — inch, breadth 1 inch. 
European and North feas. 
trifafciata. * 28. T. ovate, fmoothifh, triradiate, with red and 
flightly Ariated tranfverfely. European feas, Britain. 
incarnate. * 29. T. ovate, a little produced on the fore-part, flat- 
tifh ; 2 inches broad. European and Mediterranean 
feas, Britain, 
donacina. * 30. T. ovate, flattilh, very obtufe on the fore-part. 
Mediterranean, Sandwich, Weymouth. 
truncate. 31. T. oval, compreffed, fubftriated • fore-part trun- 
cated. Java. 
C O N C H G L O G Y. 405 
32. T. flat, fore-part truncated, yellow; i ’- inch trilateral 
long, and 2 broad. 
33. T. oblong, brittle, yellowilh 5 rounded on one oblonga. 
fide. Europe. 
34. T. white, tranfverfely Ariated, and bifariou Higfpengleru 
hooked on each iide. Nicobar iflapds. 
* 35. T. with rugged, concentric Arise; the fize of a rugofa. 
filbert. Weymouth. 
* 36. T. oval, oblong, deeply Ariated, parallel to the cornubi- 
ma rgin. Cornwall. enjis. 
* 37. T. oblong, ovate, compreffed, with fine, tran i-fervenjis. 
verfe Arise ; 1 inch long, and 2 broad. North feas, 
Weymouth, Yorkfnire. 
38. T. purple, with white bands, and decuffated'5/>ern.'/ff/<7» 
Arise ; one valve convex, the other flat ; 2^ inches 
broad and 1 g long. 
39. T. oval, inequivalve, flat, pellucid, with fine hyalina. 
decuffated' Arise ; !-§■ inch long, 3 broad. Guinea. 
40. T. yellowifh, very thin, perpendicularly Ari -vilrta, 
ated. North and Baltic feas. 
41. T. oval, very thin, tranfverfely Ariated; 10 lanceolata, 
lines long, 1 ^ inch broad. India. 
42. T. oval, pellucid, with a rib in each val ve,ape/ina. 
reaching from the hinge to the outer margin ; very 
thin. Nicobar. 
43. T. oval, pellucid, fcarlet, tranfverfely Ariated, coccinea. 
very thin. Sea round Iceland. 
44. T. Arise fine, tranfverfe, lengthened forwards virginica. 
into a beak, very fmall and rounded. Rivers of Vir- 
ginia. 
45. T. nearly triangular, margin dilated ; 2 inches alata. 
broad, and ij- long. 
46. T. rounded, flat, thin, with longitudinal Ari n. pediinata, 
47. T. fiattilh, red, with white rays ; one end point- angujbata. 
ed, the other rounded. 
48. T. oval, rounded at one end ; variegated, with variegate. 
a whitiAi ray at the crown. 
49. T. oval, a little pointed at one end ; 2~ inches madagaf- 
iong, and 3^ broad. Madagafcar. carienjis. 
50. T. purpliAi at each end ; 14 inch long, and fom e-purpuref- 
thing broader. cens. 
51. T. pointed at one end, y-ellowilh within, radia- afpera. 
ted and rough with tranfverfe Arise without ; inch 
long, and 3 inches broad. 
52. T. llightly wedged, whitifh, and tranfverfely triangula- 
Ariated ; i-^- inch broad, and 1 long. ris. . 
53. T. white, with unequal fides, pointed at one end. ; lata. 
1 J- inch long, and 2 broad. Norway feas. 
54. T. thick, beak purpliAi without. Jamaica. jamaicenjis 
* 55. T. outwardly white and rough, with tranfverfe rhom- 
Ariae ; within bluiAi ; 2 inches broad, 1 long. River hordes . 
Tees, England. 
* 56. T. purpliAi, tawny, with white rays; 1 inch vinacea. 
long, and !-§■ broad. BritiAr and Baltic feas. 
57. T. rofy, with a white band. Shores of Tuf- %onata. 
cany. 
58. T. whitifh, with a paler band ; within yellow, albicans. 
59. T. reddifh, with pale yellow fpots, and decuffa- rufefeens. 
ted Arise ; \ inch long, i-§- broad. 
60. T. unequal fided, depreffed, minutely Ariated, plana. 
61. T. unequal fided, round at both ends, rofy white, Jlriata. 
pellucid ; 2 inches broad, 1^ long. 
62. T. rofy, with thin ribs running from the hinge rofea, 
to the margin ; 1 inch Jong, broad. 
6 ?. T. 
