CONCHOLOGY. dl 
T. decorate.* T. alta* 
T. lateralis.* I’. nasuta.* 
T. alternata.* T. lineata* 
T. vimaculata.* T. sordida.* 
T. pumicea.* 
5. Genus Tellinides. Pl. VII. 
Animal. As above. 
This genus is very nearly allied to the Psammobia, Tellina, 
and Lucina, but upon close examination it will be found to be 
distinct from either. 
Shell. Equilateral, transverse, somewhat elongated, nearly 
without the flexuous plait ; two divergent cardinal teeth, of which 
the anterior is but little distant from the summit. Inhabits the 
Bay of Naples. Two species. One species is found on the 
shores of America. 
Tellinides Timorensis. 
T.. rosea.* 
Genus Corbis. Pl. VII. 
Animal. Differing slightly from the Lucina. 
This genus was classed by Lamarck with the Lucina, but the 
great difference in the organization of the animals discovered by 
Cuvier, has made this a distinct genus. 
Shell. Equivalve, transverse, without any imepalde fold on 
the anterior margin, having the beaks flexed inward and opposite ; 
two cardinal teeth ; two lateral, the posterior of which is nearest 
the hinge ; muscular impressions simple, ligament external. In- 
habits the Indian Ocean. 
Corbis fimbriata. Corbis maculata. 
7. Genus Lucina. Pl. VII. 
Animal. Very imperfectly known. 
Shell. Inequilateral, suborbicular, beaks small, pointed, and 
oblique ; two divergent cardinal teeth, one of which is bifid, and 
which vary or disappear with age; two lateral teeth sometimes 
obsolete, the posterior approaches nearest to the cardinal teeth ; 
