1915.] NATURAL SCIENCES OF PHILADELPHIA. 551 



This is TrunciUa foliata Hild. (1828) of Simps. Synops., p. 521, 

 Descr. Catal., p. 18. 



Lampsilis cardium Raf. 



Lampsilis cardium {Unio cardium) Raf. Monogr. (1820), p. 298, No. 14, 

 PI. 80, figs. 16, 17, 18, 19. 



The type is A. N. S. P. Coll. No. 20,210. 

 Length 106, height 77, diam. 48 mm. 



This is Lampsilis ventricosus Bar. (1823) of Simps, Synops., p. 

 526, Descr. Catal., p. 38. 



Lampsilis luteolus Lam. 



Lampsilis fasciola {Unio fasciola) Raf. Monogr. (1820), p. 299, No. 16. 



The t\T>e is A. N. S. P. Coll. No. 20,203, one valve only. 

 Length 66, height 39, diam. 10, mm. 



This is Lampsilis luteolus Lam. (1819) of Simps. Synops., p. 534, 

 Descr. Catal., p. 60. 



Lampsilis ligamentinus Lam. 



Unio crassa {Elliptio crassa) (Say) Raf. Monogr. (1820), p. 293, No. 2. 



This shell is A. N. S. P. Coll. No. 20,234, from the Ohio River. 



Length 113.5, height 76, diam. 46 mm. 



The name is preoccupied by Unio crassa Retz (1778). 



Uniofasciata {Elliptio fasciata) Raf. Monogr. (1820), p. 294, No. 4. 



The type is A. N. S. P. Coll. No. 20,222, from the Kentucky River. 

 Length, 72.. height 48, diam. 25.5 mm. 



U?no pollens {Obliq. ditto, 1821) Raf. Continuation of a Monogr. of Bivalve 

 shells of the Ohio, etc., by Prof. C. S. Rafinesque, Philadelphia, October 

 (1831), p. 3, No. 94. 



The t\i)e is A. N. S. P. Coll. No. 20,240. Gift of S. S. Haldeman. 



Length 59, height 38, diam. 27.5 mm. 



These three species are Lampsilis Ugamentinus Lam. (1819) of 



Simps. Synops., p. 539, Descr. Catal., p. 79. 



Lampsilis rectus Lam. 



Unio latissima {Elliptio latissima) Raf. Monogr. (1820), p. 297, No. 12, 

 PI. 80, figs. 14, 15. 



The type is A. N. S. P. Coll. No. 20,212, from the Ohio River. 



Length 112, height 44, diam. 31 mm. 



This is Lampsilis rectus Lam. (1819) of Simps. SjTiops., p. 544, 



Descr. Catal., p. 95. 



Lampsilis leptodon Raf. 



Unio leptodon {Elliptio leptodon) Raf. Monogr. (1820), p. 295, PI. 80, figs. 

 5, 6, 7. 

 This shell is A. N. S. P. Coll. No. 20,214, from the Kentucky River. 

 Length 50, height 25, diam. 12.5 mm. 



