Mollusca — By Purchase 87 



By Purchase 



Lymnaa stagnalis, Planorbis trivolvis ^var. macrosiomaj, from 



Mackenzie River. 

 A collection of Jamaican shells, comprising Helix ( Thelidomus and 



FleurodoitteJ, Hemitrochus, Helicina, Proserpina^ Cyclotus, 



Alcadia, Cyclostonta, Stenogyra, Varicella, Trochatella, Micro- 



ceramus, Urocoptis, Brachypodella, Physa. 



