136 Journal of the Mitchell Society [February 



Tellina (Angulus) tenera Say. S C J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 56, fig. 13. 



Occasional, inside. 

 Tellina {Angulus) versicolor DeKay. S J 



Shape as T. tenera but rayed with pink. 



Less common than preceding, inside. 

 Tellina {Angulus) sayi Deshayes. S C J 



Thick; with a raised rib running from under the beaks inside. 



The commonest Tellina, inside. 



Called T. polila by Stimpson and Coues. 

 Tellina {Scissula) iris Say. SCO 



Surface obliquely grooved; with radiating pink rays. 



Rare, inside, sand. 

 Tellidora cristata Recluz. S J 



Figure 47. 



Three valves, inside. 

 Strigilla flexuosa (Say) . S C J 



Dall, U. S. Bur. Fish. Bull., vol. 20, pt. 1, p. 482, 1901. 



Occasional, inside. 

 Macoma tenta (Say). S C A J 



Dall, U. S. Nat. Mus. Bull. 37, pi. 56, fig. 10. 



Two right valves, uncommon, inside. 

 Macoma {Psammacoma) brevifrons (Say). 



Dall, U. S. Bur. Fish. Bull., vol. 20, pt. 1, p. 481, pi. 55, figs. 3, 12 and 13. 



One right valve, inside. 

 Semele bellasiriata (Conrad). S? J 



Dall, U. S. Bur. Fish. Bull., vol. 20, pt. 1, p. 477, 1901. 



One worn right valve, inside. 



Stimpson's record is S. reticulata. 

 Semele proficua (Pulteney). S C A J 



Figure 126. 



Fairly common, inside. 



Called S. orbiculata by Stimpson and Coues. 

 Abra aequalis (Say). S C A J 



Figure 127. 



Fairly common, inside. 

 Abra lioica Dall. 



Figure 650. 



Five valves, inside. 

 Cumingia tellinoides Conrad. S C J 



Md. Geo. Surv., PJio.-Pleisto., pi. 56, figs. 1-5. 



Uncommon, inside. 

 Tagelus gibbus (Spengler) . S C O A J 



Md. Geo. Surv., Plio.-Fleisto., pi. 57, figs. 1-4. 



Fairly common, inside. (See Aller.) 



The young have no median ray, short nymphs and a longer pallia 1 sinus than 

 T. divisus. 



