GASTEROPODA. 



Synonym, Amberleya,* Morris and Lycett. 

 Shell very thin (withont a nacreous layer ?) ; spire elongated, 

 almost turriculated ; surface ornamented by longitudinal plica- 



lip semi- 

 England, 



Fig. 14. Eueychis goniatus, Deel.. 



tions and nodes; aperture oval, angular above; 

 circular, thin ; columella flattened, imperforated. 



Fossil, 23 species. Upper Lias — Kelloway Rock. 

 Prance, Germany. 



[Family Solabed^] 

 Contains — 



SoLAHiUM (see p. 253). 



Sub-genera, Torinia, Gray. 



PhiUppia, Gray (p. 253). Shell trochiform ; umbilicus small. 

 Fossil, 3 species. Miocene. America. 



Disculus, Desbayes. Shell discoid ; umbilicus very narrow, 

 inferior angle of the aperture extended and oblique. 



Adeorbis (p. 266), Cibrus (p. 271), Discohelix (p. 253), 

 EuoMPHAJLUS (pp. 267, 346), Bierontia (p. 253), Platystoma 

 (p. 254), Phajsterotiitd-s (p. 267), Macltirea (p. 345). 



* This name was published in 1854, but the genus was insufficiently characterised. 



c3 33 



