Mazycrx: Mouuusca or SoutH CAROLINA 3 
20. humilis Say. Alexander Street, Charleston, 1866! 
Sullivan’s Island. 
21. macrostoma Say. Cooper River! Fine examples 
near Pee Dee River Bridge, Cheraw, 1864! 
obrussa Say, var. Cooper River! 
23. Planorbis glabratus Say. Santee Canal, Dr. Ravenel. 
lentus Say. Grove, Cooper River, Dr. Ravenel. 
25. ———— trivolvis Say. Cooper River at Mulberry Castle! 
tumidus Pfr.* ‘‘ Yemassee’’ (Henderson ’07, p. 8). 
ar (Menetus) exacuous Say. Rare. Grove, Cooper 
River, Dr. Ravenel. 
28. (Gyraulus) alabamensis Pils. Hayfield Farm 
near Charleston! Grove, Cooper River, Ravenel collection. 
29. deflectus Say. Rare, Otranto! 
30. ——— dilatatus Gld. Not common. Near 
Charleston! 
31. parvus Say.* Yemassee, coll. Bryant 
Walker, Detroit, Mich. 
Family ANCYLIDAE 
32. Ancylus parallelus Hald. One specimen, Hayfield Farm 
near Charleston, A. H. Mazyck. 
33. peninsulae Pils. Not uncommon. Otranto! 
Family PHYSIDAE 
34. Physa cubensis Pfr. Otranto! 
35. gyrina Say. Common. Cooper River. 
36. heterostropha Say. Cooper River. 
37. pomilia Con.* Spartanburg, coll. Bryant Walker, 
Detroit, Mich. 
Suborder STYLOMMATOPHORA 
Superfamily DITREMATA 
ORTHURETHRA 
Family PUPIDAE 
38. Strobilops labyrinthica Say. Rare. Drayton Hall, 1904! 
Stateburg, Sumter County, 1910! Otranto, 1911! 
