1921] Marine Molluscan Shells of Beaufort 133 



Rogers, Shell Book, p. 388, fig. 2. 



Occasional inside. 

 Modiolus (Brachydonies) demissus dernissus (Dillwyn). S C O A J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 54, fig. 1. 



Abundant, inside on the grassy tidal flats. 

 Modiolus tulipus Lamarck. S C A J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 54, fig. 4. 



Rogers, Shell Book, p. 396, fig. 6. 



Fragments (rarely entire valves) occasional on outer beach. (See Aller.) 



Coues also reports a live specimen of Modiola casianea Say from the channel. 

 Modiolaria lateralis (Say). S J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 6, figs. 7 and 8. 



One young pair of valves from Fiver's Island has been referred to this species. 

 Lithophaga bisulcata (Orbigny). A 



"Railroad pier at Morehead City, burrowing into pieces of coral and soft rock. 

 Maximum length is 46 mm." 



Osborn records Lithodomus lithophagus Linne, stating that: "Numerous speci- 

 mens are found boring into the surface of wharf-piles beneath the bark." 

 Rocellaria slimpsoni Tryon. SCO 



"Shells of Venus mercenaria riddled with holes" of this species. 

 Pandora trilineata Say. S C J 



Dall, U. S. Nat. Mus. Proc, vol. 24, pi. 31, fig. 4, cf. pi. 32, fig. 7. 



Uncommon, inside, mud flats. 



Some of my material approaches P. trilineata gouldiana Dall. Stimpson and 

 Coues report Lyonsia hyalina (Conrad). 

 Crassatellites mactracea (Linsley). S C J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 58, figs. 11 and 13. 



Occasional, inside. 



Unworn individuals are well striated. 

 Venericardia {Pleuromeris) tridentata Say. S C J 



Figures 9 and 10. 



Occasional, inside. 

 Chama congregata Conrad. 



Md. Geo. Sur., Miocene, pi. 41, figs. 1-3. 



Occasional, upper valve fairly common, inside. 

 Chama macerophylla Gmelin. SCO 



Reeve, Conch. Icon., vol. 4, pi. 2, fig. 6; and pi. 8, fig. 6b. 



Reported abundant by Coues and rare by Osborn, I was unable to find any- 

 thing that I would refer to this species. The largest of my Chamas s. s. 

 have a greatest length of 24 mm. and have no foliaceous scales. 

 Echinochama arcinella (Linne). S C J 



Rogers, Shell Book, pi. 357, fig. 3. 



Uncommon (two specimens), outer beach. 

 Lucina chrysostoma Philippi. S C O J 



Arnold, Sea-beach at Ebb-tide, p. 444, fig. 5. 



Common, outer beach. 

 Phacoides (Callucina) radians (Conrad). 



Dall, U. S. Nat. Mus. Proc, vol. 23, pp. 809 and 824, pi. 42, fig. 8. 



