AIR-BREATHING GASTEROPODS. 67 
A GROUP OF UNIVALVES. 
1. Land mollusk of Philippines (Rhysota Antoni?) 2, Eulima, that 
lives in Holotburians. 3. Chlor@a. ot ce lagu 5. Chlorea, 6. Cochlo- 
styla stabilis. 7. Planorbis. 8. S (Malay). 
io, Xesta, 11. PAysa. 12. Cochlostyla (Philippines). 
