130 Dentition of Pulmonale Mollusks. 



Physa vinosa, Gld. L. & Fr. W. Sh. X. A., II, 81. 

 ancillaria, Say. " " "83. 



Phy*a . Ann. Lye, IX, 255. 



Planorbis trlvolvis, Say. Ann. Lye, IX. 292. 



Aacylus Newberryt, Lea. L. & Fr. W. Sh. N. A., II, 22. 



Erinna Newcombi. A. Ad. Ann. Lye, X, 349 ; Phila. Proa, 1374. 5 4. 



Gandlachia California, Rowei.l. L. & Fr. W. Sh. N. A., II, US. 



PECTTNIBRANCHIATA. 



Geomelania. Am. Journ. Conch., VII, 185. 



Blandietta redusa, Gcppy. " " " 



Megalomastoma bituberculatum, Sowb. Am. Journ. Conch. , VI, 213. 



Tulotoma magnificum, Conrad. Ann. Lya, IX, 293. 



Pomus depressa, Say. L. & Fr. W, Sh., Ill, 1. 



Vlvipara inlertexta, Say. " " 16. 



Melantho Integra, Say. " " 35. 



SCUTIBRAN CHI AT A. 



XeriteHa reclivaia, Say. L. <fc Fr. W. Sh., III. 101. . 



Stoasioma pisum , Ad. Am. Journ. Conch., VII, 184 



Helitina occulta, Say. Ann. Lya, IX, 287; Am. Journ. Couch., VII, 29. 



. L. & Fr. W. Sh., Ill, 116. 



orbiculata. Say. Am. Journ. Conch., VI, 214. 



Description of Platks. 



PLATE II. 



Lingual Dentition of 



Fig. A. Nanina subcircula, Mouss. 

 B implicata, Nevill. 



C argentea, Rve. 



D Rawsonis, Barclay. 



E Calias, Bens. 



F Calias, Bens. Abnormal central tooth. 



G. Limax semitectus, Morch. 

 H. Velifera Gabbi, W. G. Binn. 

 I. Macrocyclis euspira. Pfr. 



