1921] Marine Molluscan Shells of Beaufort 137 



Tagelus (Mesopleura) divisus (Spengler). S C A J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 56, fig. 5. 



Common, inside. (See Aller.) 

 Donax fossor Say. 



Figures 16 and 17 (figure 16 is from Long Island, N. Y.). 



Occasional, inside. 



Osborn's record, though under this name, is for the other species. 

 Donax variabilis Say. S C O A J 



Figures 14 and 15 (figure 15 is from Long Island, N. Y.). 



Abundant on sandy outer beaches, especially where somewhat protected. (See 

 Aller and Coues.) 

 Ensis diredus (Conrad). S C O A J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 53, fig. 4. 



Occasional, inside. (See Aller.) 

 Ensis minor Dall. 



Common on sandy shallow flats, inside. 



Differs constantly from the previous in being smaller and more slender and 

 in having a tendency to be wider at posterior than anterior end. 

 Spisula (Hemimadra) solidissima (Dillwyn). S C O J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 57, fig. 2. 



Common on outer beach. 

 Spisula (Hemimadra) solidissima raveneli Conrad. 



Short, high form. 



Coues' record under this name undoubtedly refers to the previous. 

 Spisula (Hemimadra) solidissima similis (Say) . S C A J 



Smaller, thinner, finer form. 



Fairly common, inside. 

 Mulinia lateralis (Say). S C A J 



Figure 12. 



Abundant, inside. 

 Mulinia lateralis corhuloides (Deshayes). 



Figure 11 (144). 



Fairly common to occasional. 

 Labiosa lineata (Say). S C J 



Figure 44. 



Uncommon, on ends of the banks. (See Coues.) 

 Labiosa (Raeta) canaliculata (Say). S C O J 



Rogers, Shell Book, p. 337, fig. 3. 



Common, outside. 

 Mya arenaria Linne. S C J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 69, fig. 2. 



Rogers, Shell Book, p. 323, fig. 7. 



Uncommon, inside. I found three broken valves, one 2}/^" long, the others 

 under one inch, all fresh. 

 Paramya subovata Conrad. S C J 



Md. Geo. Sur., Miocene, pi. 68, figs. 7 and 8. 



Uncommon, inside, four valves. 



