OF CONCHOLOGY. 281 



PERIPLOMA, Sebum. 



4. Pefjploma papyracia, Say. — Plate 15, fig. 6. 



This species is referred to in the Journal for January of the 

 present year, page 70, and is figured on Plate 4, fig. 9. The 

 illustration proving to be not so correct as desirable, I have 

 re-figured it, as above indicated. 



LUCINA, Lam. 



5. Lucina lixtea, Conrad. — Plate 15, fig. 7. 



Description. — Suborbicular, ventricose; beaks central; disks 

 with close, radiating lines, and concentric, lamelliform, some- 

 what fringed strite; behind the umbonal slope is a slight fur- 

 row, or fold, minutely striated; cardinal and lateral teeth dis- 

 tinct; anterior cardinal area minutely wrinkled in the left 

 valve, margins crenulated within ; lunule acutely ovate, promi- 

 nent. 



Inhabits Tampa Bay, Florida. 



TELLINA, Lin. 

 Subgenus ANGULTJS ? 



6. Tellina Tampaensis, Conrad. — Plate 15, fig- 8. 



Description. — Ovate-triangular, convex, inequilateral, very 

 finely and closely lined concentrically ; posterior margin ob- 

 liquely subtruncated, the extremity angulated and situated 

 much above the line of the base; cardinal teeth 2 in each 

 valve, with an approximate short lateral tooth in the left valve, 

 and a rudimentary lateral tooth in the opposite valve. 



Inhabits Tampa Bay, Florida. 



