Incurva. 
Bicolor. 
Exusta. 
Vexillum. 
Papyracea 
| Sanguinea. 
WORMS. TESTACEA. 69. Pinna. 303 
Gualt. tef. tab. 78. C. tab. 79, Es 
Chemn. conch. 8. tab. 87. fig. 772. 
Inhabits the Indian Ocean; very raree 
Shell narrow, long, naked, carinate, with tranfverfe un- 
dulate wrinkles. 
Bonan recr. 2. fig. 23. Muf. Kirch. 2. f. 25. 
Rumpf. Muf. tab. 46. Y, K. Klein oftr. tab. 11. f 71. 
Petiv. Amb. aq. tab. 19. f. 4, 5. 
Chemn, conch, 8. tab. 90. f. 778. 
Inhabits the Jzdian Ocean ; pale horn-colour, curved at the hinge, 
and marked with a few longitudinal ftriz. 
Shell thin, infleded at the lateral margin, yellowifh with 
black-brown rays; with a fex longitudinal ftriz. 
Chemn. conch. 8. tab. go. fig. 780. 
Inhabits the Red Sea; horn-colour, long, with a few traníverfe 
curved ftriz at the curved margin; the larger end rounded, 
Shell flattifh, horny, with blackifh rays fpots and clouds, 
and many {mooth ftriz ; a few fpinous ftriez with ca- 
niculate fcales. | 
Seba Muf. 3. tab. 91. fig. 2. 
Chemn. conch. 8. tab. gi, pig. 782... 
Inbabits the Southern Ocean of India: rare. 
Shell truncate at the outer margin, dilated, naked, horny, 
with a few black clouds; longitudinally ftriate on the 
fore- part and tranfverfely wrinkled behind. 
Born. Muf. Cef. Vind. teft. tab. 7. fig. 8. 
Chemn. conch. 8, tab. 91. fig. 783. 
Inhabits zia; extremely rare: hell appearing as if winged, | 
with a curved lateral margin. 
Shell very thin, brittle, horny, with longitudinalribs; the 
extreme margin roundiíh. 
Chemn. conch. 8. tab. 93. fig. 786, 
Inhabits the Indian Ocean: back of the ribs fometimes {caly; im 
the middle of the fhell a violet-brown fpot, and a few tranf- 
verfe wrinkles at the lateral margin. 
Shell flattifh, flightly incurved, red, with a few perpendi- 
cular fmooth ftriz. 
Inhabits Gualt. teft. tab. 79. fig. B. 
Shell 3 inches long: probably not a diftinct fpecies, 
Bullata | 
