MADEIRAN GROUP. 



65 



Helix polymorpha, Lowe 



ft. salebrosa, Lowe * * 



7. poromphala, Lowe * 



0. pulvinata, Lowe . . . 



1. papilio, Lowe * 



K. discina, Lowe * 



/*. attrita, Lowe 



testudinalis, Lowe . . . . . . * 



Bulwerii, Wood * 



tectiformis, Sow. 



a. [normalis] * 



ft. * Imdwici, Alb. v " ? .' ; . : V' ! .- * 

 * delpltinula, Lowe 



a. [w0r7W#/is] ....... * 



ft. planispira, Paiva ..... # 



coronata, Desh. * 



* coromila, Lowe 



tiarella, W. et B ' 



calva, Lowe ....... * 



Pupa * linewris, Lowe . V . . 

 cassida, Lowe 



laurinea, Lowe * 



* Wollastoni, Paiva . . .... * 



millegrana, Lowe . . ',' ., 

 corneocostata, Woll. .',i. ,. 



calathiscus, Lowe 



abbreviate, Lowe . . . ... 



gibba, Lowe * 



lamellosa, Lowe ...... * 



saxicola, Lowe 

 Clausilia crispa, Lowe 



ft. decolorata, Woll * 



deltostoma, Lowe 



a. raricosta, Lowe * 



ft. [normalis] 



Achatina eulima, Lowe ....,.# 

 Lovea terebella, Lowe 



a. subula, Lowe . . . . 



oryza, Lowe . 



triticea, Lowe . . . , . ' 

 melampoides, Lowe . . . . 



tornatellina, Lowe ..... 



mitriformis, Lowe ...... * 



ovuliformis, Lowe . . , . . 

 * cylichna, Lowe . . . . . 



Craspedopoma lucidum, Lowe . .. . 



trochoideum, Lowe ... 



Pto.Sto Mad. S. Des 



From which we gather that, out of the 176 members of the 

 Pulmonata which have been recorded up to the present time in 

 the Madeiran Group, no less than 82 are met with in a sub- 

 fossilized state. And inasmuch as these 82 are made up almost 

 exclusively of the species which are manifestly indigenous 

 (those which there is every reason to suspect have been esta- 

 blished accidentally within a comparatively recent period being 



