125 



(iinal ribs, canccllate by concentric, elevated lines, which do not 

 penetrate into the interstititial narrow spaces, and which are obsolete 

 on the umbo, and on the anterior side ; inner margin deeply cre- 

 nate ; hinge with two diverging teeth, separated by a large cavity 

 on one valve, and on the other a single large, triangular, promi- 

 nent, recurved tooth, closing into the cavity. 



Length one-fourth of an inch, breadth rather more. 



This curious shell was discovered by Mr. Stephen Elliott, on the 

 coast of South Carolina. Its characters do not at all correspond 

 with those of Venericardia, as defined by Lamarck in his last 

 work, the Animaux sans Vertebres, where he attributes to the genus 

 " two oblique, cardinal teeth directed to the same side." In the 

 Ann. du Mus., vol. 7, page 55, he admits, however, that "■ in cer- 

 tain species, which ought, perhaps, to be separated from the Veneri- 

 cardes, there is on one valve but a single cardinal tooth, and upon 

 the opposite valve two divergent cardinal teeth." These charac- 

 ters, I conceive, correspond with the shell above described ; and 

 although, should they be tolerated, an artificial assemblage will be 

 the result, yet, for the present, I refer this shell to the genus Veneri- 

 cardia, under this authority of Lamarck. 



This species will be regarded as an interesting addition to the 

 Fauna of the present world. The first recent species was described 

 by Lamarck as a native of New Holland. All other known species 

 are found only in the fossil state. 



Tellina intastriata. — Shell subovate, angulated at the an- 

 terior base, transversely wrinkled, and within slightly striated lon- 

 gitudinally. , 



Coast of East Florida. 



Shell white, immaculate, ventricose ; wrinkles distinct, and with 

 obsolete, longitudinal striae ; posterior slope near the hinge parallel 

 to the base ; posterior end obtusely rounded ; anterior hinge slope 

 rectilinear, oblique ; anterior end rounded ; fold rather profound, 

 extending from the beak to the junction of the base, with the an- 

 terior end } base viewed from the disk of the right valve subrec- 

 tilinear, but very much arcuated with the concavity of the shell ; 

 hinge teeth small, lateral teeth none ; within longitudinally obso- 

 letely striated ; beak rather before the central. 



Length one and three-fifths inch, nearly 5 breadth two and one- 

 tenth inches, nearly. 



