Mollusca.] 
NATURAL HISTORY. 
475 
5. Cardium teNuicostatum, Lam, Hist, vi. 5. 
Icon. 
The shell when perfect is white, with rose-coloured umbones ; the 
rose colour is often extended down the centre of the shell, forming- 
concentric zones. 
6. Lucina divaricata, Lam. Hist. v. 541. 
Tellina divaricata, Gmel. Sys. Nat. i. 3241. 
Icon. Chemn. Conch, vi. 134. t. 13. f. 129. 
7. Venerupis galactites, not). 
Venus galactites, Lam. Hist, v, 599. 
Icon. 
The fact of Lamarck having placed in the genus Venus this shell, 
which a modern conchologist has considered as a variety of V ene- 
rupis perforans^ shews the very great affinity that exists between 
those genera. 
8. Venus flammiculata ? Lam. Hist. v. 605. 
Icon. 
This shell is pale yellowish, with irregular, large, distinct, concen- 
tric ridges, and distinctly radiated strise ; the umbones smooth, 
polished, orange-yellow ; the lozenge lanceolate, purple ; the inside 
golden-yellow ; the anterior and posterior dorsal margins purple. 
9. Venus tessellata, (ii. s.) 
Testa ovato-oblonga, alhida, lineis purpureis angulatis 
picta ; sulcis concentricis, ad latus posteriorem lamella- 
tis ; marginihus integerrimis. 
Icon. 
Shell ovate-oblong, white, polished, with rows of square purple 
spots, forming regular lines, with the points directed toward the 
back of the shell ; covered with many distinct, nearly equal, con- 
centric, smooth ridges ; the front part of the ridges somewhat 
elevated, thin, hinder part distinctly lamellar and much elevated: 
the lunule subulate, lanceolate ; the edge quite entire ; umbones 
with a purple spot ; inside white, except on the anterior and pos- 
terior dorsal edges, which are purple ; length eight-tenths, height 
six- tenths of an inch. 
