26 CONTRIBUTIONS FROM THE CHARLESTON MusEUM 
404. Pisidium abditum Hald.* (Prime ’65, p. 68.) 
405. sp. Rare. Hayfield Farm! 
Superfamily CARDITACEA 
Family CARDITIDAE 
406. Venericardia tridentata Say. Common. 
Family CRASSATELLIDAE 
407. Crassinella lunulata Con. Rather common. 
408. sp. One young Specimen, Sullivan’s Island! 
Superfamily CHAMACEA 
Family CHAMIDAE 
409. Chama arcinella Linn. Rare. Waccamaw, Prof. F. 
S. Holmes. 
410. congregata Con. Rare. Sullivan’s Island! 
411. ——— lazarus Linn.* (Kurtz ’60.) 
Superfamily LUCINACEA 
Family THYASIRIDAE 
412. Thyasira gouldii Phillipi.* (Smith & Prime ’70, p. 381). 
413. ovoidea Dall.* (Dall ’89a, p. 50.) 
Family DIPLODONTIDAE 
414. Diplodonta punctata Say. Rare. Sullivan’s Island! 
415. semiaspera Phil. Rare. Sullivan’s Island! 
Pawley’s Island, W. St. J. Mazyck! 
Family LUCINIDAE 
416. Codakia orbicularis Linn.* (Gibbes 748; Kurtz ’60; 
Ravenel ’74, p. 62, Cytherea tigerina.) 
417. (Jagonia) orbiculata Mont.* (Lucina squamosa 
Lam.). (Tuomey & Holmes ’57, p. 58.) 
418. — sp. Small (orbiculata Mont., young?). Rare. 
Sullivan’s Island! 
419. Lucina chrysostoma Mérch. Not uncommon. Large. 
420. radula.* (Kurtz ’60.) 
