366 The Molluscan Family Planorbidae 



PLATE 65 



Radulae of Planorbula, Parapholyx, and Carinifex 



See remarks on plate 53. Line at lower left of plate 

 indicates 25 microns in length. 



1. Planorbula armigera (Say). Murphy Creek, near Madison, Wisconsin. 



128, center tooth; 1-6, lateral teeth; 9, 11, intermediate teeth; 12-19, marginal 

 teeth. 



2. Planorbula jenksii (H. F. Carpenter). Unionville, Connecticut. 



105, center tooth; 1-5, lateral teeth; 9, 11, intermediate teeth; 12-19, marginal 

 teeth. 



3. Parapholyx effusa klamathensis F. C. Baker. Klamath Lake, Oregon. 



60, center tooth; 1-8 lateral teeth; 9-11, intermediate teeth; 13-19, marginal teeth. 



4. Cariyiifex jackso7ic7isi.<i J. Henderson. Jackson Lake, Wyoming. 



120, center tooth; 1-10, lateral teeth; 12, intermediate tooth; 13-24, marginal 

 teeth. 



