GLOSSARY. 107 



indigenous, born in the country, native. 



infldta, blown out, swollen. 



instdbilis, fluctuating. 



intermedia, varying between two distinct forms. 



involuta, folded inwards. 



iridescent, coloured like a rainbow. 



L. 



labiosa, with a large lip. 



lacustris, inhabiting lakes or ponds. 



levis, smooth. 



lamellata, furnished with plaits. 1 



Lamellibrdncliidta, having leaf-like gills ; the name of 



an Order of mollusks. 

 lamina, a plate. 



lamindta, furnished with plaits. 

 lapicida, a stone-cutter. 

 Idtior, broader. 



Leachii, named after Dr. Leach. 

 leucozona, banded with white. 

 ligament, the elastic substance connecting the valves of 



a bivalve shell. 



Limax, a slug ; the name of a genus. 

 Limacidce. The name of a Family of mollusks. 

 Limnc&a, inhabiting marshes ; the name of a genus. 

 Limnceidce. The name of a Family of mollusks. 

 linedtus, marked with lines. 

 lingual dentition. The arrangement of teeth on the 



tongue. The gasteropods are furnished with a " ribbon " 



set with teeth, which grind against a hard palate. 



1 Lamina means a plate ; lamellata and laminata are used erroneously 

 to describe plaits, plications or folds. 



