26 



G. LINDSTRÖM, ON THE SILURIAN GASTROPODA AND PTEROPODA OF GOTLAND. 



Brought forward 



Holox^ea. 



156 perforata n 



157 nitidissima d 



158 applanata n 



Faoi. XIII Scalarid» Brodekip. 



Callonema Hall. 



159 obesum n 



160 scalariforme n 



Holo^ella 5i'coy. 



161 teres n 



162 regularis n 



163 minuta n 



Fam. XIV Pyramidellidfe Gray. 



Machrochilina Bayle. 



164 cancellata n 



165 bulimina n 



166 fenestrata n 



Fam. XV Siibiilitidse n. 



Suhulites Conrad. 



167 ventricosus Hall 



F&rö. 





3 



p-i 



pr 

 ro 

 >-( 



3 



i 



5* 

 C 



2 



CO 

 ro 



C- 



p 





B' 



er- 

 o 



o 



er 

 n 



B 



e 

 td 



a 



Cfi* 



p: 



t-' 

 c 



a> 



'^ 



O 

 P 



B 

 P 



16 



15 



b 







6 



17 



17 



c 



10 



31 











c 

 c 



23 

 







c 







17 

 c 



68 



c 

 c 

 c 



b 

 b 



a 



a 

 c 

 a 



19 



c 



12 



4 



a 

 a 



168 ventricosus var. curvus 



169 attenuatus n 





Euchrysalis Laube. 

 170 lineolata n 



Onychochilus n. gen. 



171 physa n 



172 reticulatum n 



173 cocUealum n 



ADDENDUM. 



3Iurohisoma. 



174 paradoxa n 



16 



17 



17 



18 



10 



34 



25 



18 



77 



20 



12 



6 



