223 ARCA. 



Area plicata. Chemnitz, xi. p. 244. t. 204. f. 2008. 

 Inhabits the Red Sea. Chemnitz* 

 This shell from Chemnitz's figure, appears to be about eight 



lines long and thirteen broad, and the colour is said to be 



greyish white. 



Candida. 6. Shell oblong-sub-rhomboidal, with 

 longitudinal, slightly decussated, crenulated 

 striae, and intermediate smaller ones towards 

 the anterior end ; margin obsoletely toothed. 



Area Candida. Chemnitz, vi. p. 195. t. 55. f. 542. Gmelin, 



p. 3311. 

 Area Helbingii. Bruguiere Erie. Meth. p. 195. 

 Area Jamaicensis. Gmelin, p. 3312. 

 Area dealbata. Solanders MSS. 

 Area, No. 8. Schroeter Einl. iii. p. 282, and No. 21. p. 



288. 

 Lister Conch, t. 229- f. 64. 



Inhabits the coasts of Jamaica. Lister. West Indies, and 

 Guinea. Bruguiere. 



Shell about three-quarters of an inch long from the summit to 

 the opposite margin, which is narrower than towards the an- 

 terior end, and rather more than an inch and a quarter broad; 

 the summits are slightly recurved, and the space between 

 them is oblong-spear-shaped, and is rather broader in some 

 specimens than in others ; the colour is white. 



complanata. 7. Shell transversely ovate, compres- 

 sed, with decussated striae, and truncated 

 obliquely at the posterior end ; margin sinu- 

 ous, gaping, and entire. 



Area complanata. Chemnitz, vii. p. 198. t. 55. f. 544 and 



o45. Bruguiere Enc. Meth. p. 100. 

 Area Candida, Var. Gmelin, p. 3311. 

 Area, No. 10. Schroeter Einl. iii. p. 283. 



Inhabits the coasts of Guinea. Chemnitz. Madagascar. Bru- 

 guiere. 



Shell about thirteen lines long, and two inches broad, and is 

 more compressed and shallower than any of its congeners ; it 

 is white all over, except the summits, which are slightly 

 tinged with fawn colour ; the inside is marked with longitu- 

 dinal striae, corresponding with those on the outside. 



