5l6 DESCRIPTION OF THE MUSEUM. 



procured six species from New Holland. The 

 genera ungulina and solemya are very rare : of 

 the first we have only one species, and two of 

 the second, one from the South seas and the other 

 from the Mediterranean. This last specimen, 

 which served M. de Lamarck as a type of the 

 genus, was found on the sea shore at Hieres hy 

 M. Olf Lacepede. 



The genera corbula and pandora compose the 

 family of the corbulece. We have ten species of 

 corbula, of which four are fossil. The three spe- 

 cies of pandora known (tellina incequivalvis , Lin.) 

 are found at St. Malo. 



The lithophagi comprehend the genera saxl- 

 cava,petricola, and venerupis ; they inhabit stones 

 which they have bored, as may be perceived by 

 the specimens of the genus petricola. 



Ten genera comprising more than eighty spe- 

 cies, compose the family of the nymphacece. The 

 genus sangitinolaria comprehends four species, 

 one of which, known by the name of sol occi- 

 dens, is a rare shell. Forty-seven species belong 

 to the genus tellina ; they are for the most part 

 of a beautiful rose colour, from which circum- 

 stance they have been named rising suns. The 

 tel.Joliacea is much sought after, and the tel. lin- 

 gua fells, as well as some other species, are re- 

 markable for the asperity of their external surface. 



