Nii'sus. 



J/er. 



W WORMS. TESTACKA. 68. Mytilas. 



Chemn. conch. 8. tab; %2;fig. 733. 



Inhabits Nicobar Ijlands .-'(hell "hyaline very brittle, within pal 

 iilvery ; one end rounded, the other dilated and angular. ] 



Shell ovate fubdiaphanous, with very fine longitudinal ftriar 

 margin acute: hinge 2-toothed. 

 Chemn. conch. 8. tab. 82. jig. 7-4. 



Inhabits Nicobar Ijlands ; very rare. $bell fnowy and poliflicl ; 

 within. 1 



Shell nearly triangular, dilated" before and flattifh ^apinl 

 behind: beaks pointed turned back : margin very^cutej 



Born M,j. Caf. Find. te(t. tab. y.jig. 6,7, 1 



Knorr /ergn. 4. tab. 1 5. fig. ci 



Chemn conch. 8. tab. S^.jig. 2J0r-74l. 



Inhabits Southern parts oi the Mediterranean and mores of AfricJk 

 4 inches long and 2 broad : within ochraceous with iridefcenf 

 colours, without ftraw-colour mixed withgreenifh and yeliowifh- 

 and marked with reddifh lines and angles: perhaps'a vr-rietV 

 of Mya Ferna. ' y 



%marjig- Shell nearly triangular flattifh s hinge 2-toothed in ontf 

 ' i/U1 ' valve and 1 -toothed in the other, 



Chemn, conch. 8. tab, %?,.jig. 745. 

 2. Chemn. conch. 8. tab.- 84. fig 746. 



Inhabits Tranquebar\ green and' a little perlaceous within: 2fl 

 Inhabits Guinea; brown, with a green margin and fometimes" 

 a few lpjts on the difk. 



ter/iedcr. Shell nearly triangular flattifh : lunge i-toothdd : maroij 

 glabrous acute. ° 



Argent, conch, tab. 22. jig. Q. 

 Chemn. conch . 8. tab 84.. jig. 748. 



Inhabits mores of Guinea, refembles M. afcr : 3 inches long andl 

 above 2 broad : ./W/ covered with a brown skin, under which 

 it is marked with crowded dull green tranfverfe flrize 2 band* 

 and varied with violet white and chefnut : probably a variety 

 ofMyaPerna. J J 



torailio* Shell carinate in the middle and eremite at the margin. 

 fl*l*u ^ with an obtufe knob. ° J ' 



Chemn conch. 8. tab. 34. jig. 7c 2. 



Inhabits the IndianztA American Ocean, and perforates rocks like a 

 Phloab; about I of an inch long. 



\ihim:* Shell triangular and dilated outwards, with angular decuff- 

 ate and conflue'nt lines: hinge 2-toothed. 



Chemn 



