HANDBOOK OF SHELLS. 



59 



No. of 



^Distribution. 



Europe and Canaries on land in damp localities. 



S. Europe, Canaries, and Britain burrowing in gar- 

 dens. 



Britain, Red Sea, Mediterranean -on rocks on the 

 seashore. 



Europe, Madeira, India, China, N. America in ponds, 

 rivers, lakes, etc. 



America, Europe, S. Africa, India, Philippines in 

 ponds, rivers, lakes, etc. 



Europe, N. and S. America in ponds, rivers, lakes, etc. 



Europe, N. America, India, China in ponds, rivers, 

 lakes, etc. 



Tropical in salt marshes. 



World-wide between high and low water. 



Division b. Operculata. 



32. Cyclostoma 80 S. Europe, Africa "} 

 Cyclophorus 100 India, Philippines > on land. 

 Pupina 80 Philippines, New Guinea j 



33. Helicina 150 W. Indies, Philippines, Central America, Islands in 



Pacific on land. 



34. Acicula 5 Britain, Europe, Vanicoro on leaves and at roots of 



grass. 

 Geomelania 21 Jamaica on land. 



35. Tornatella 



36. Bulla 



37. Aplysia 



38. Pleurobran- 



chus 



ORDER III. Opisthobranchiata. 



Division a. Tectibranchiata. 



1 6 Red Sea, Philippines, Japan in deep water. 

 50 Widely distributed low water to 30 fathoms. 

 40 Britain, Norway, W. Indies low water to 15 fathoms., 

 on seaweed. 



20 Britain, Norway, Mediterranean. 



39-44- 



Division b. Nudibranchiata. 

 All shell-less. 



ORDER IV. -Nucleobranclnata. 



45. Firola 8 Atlantic, Mediterranean. 

 Carinaria 5 Atlantic and Indian Oceans. 



46. Atlanta 15 Warmer parts of the Atlantic. 



