GASTEROPODA. 
Synonym, Amberleya,* Morris and Lycett. 
Shell very thin (without a nacreous layer?); spire elongated, 
almost turriculated ; surface ornamented by longitudinal plica- 
Fig. 14. Eucyclus goniatus, Desl.. 
tions and nodes; aperture oval, angular above; lip semi- 
circular, thin; columella flattened, imperforated. 
Fossil, 23 species. Upper Lias— Kelloway Rock. England 
France, Germany. 
[Famity SoLARIDz] 
Contains— 
SOLARIUM (see p. 253). 
Sub-genera, Torinia, Gray. 
Philippia, Gray (p. 253). Shell trochiform ; winbilicus small, 
Fossil, 3 species. Miocene. America, 
Disculus, Deshayes. Shell discoid; umbilicus very narrow, 
inferior angle of the aperture extended and oblique. 
ADEORBIS (p. 266), CrrRuS (p. 271), DIscoHELIX (p. 253), 
EUOMPHALUS (pp. 267, 346), BrrRoNTIA (p. 253), PLATYSTOMA 
(p. 254), PHANEROTINUS (p. 267), MACLUREA (p. 345). 
* This name was published in 1854, but the genus was insufficiently characterise‘, 
c3 33 
