O-a 



Oi 



J1Çl 



Tig".i33 . Sclienia âxiscpeleile 

 de SpjKaeroides. 



rwfjfxu 





3^co^ 



'kXoco <:vwv«.4.^/v\-'VU2- ( t/vvta/v/v^A.) cHj2a^^\«'vv/C >«,'wCT-a/v-uvi - 



(d). 



i''i(j.l34'. Act-inoTiima asteracanthion ^ 

 Ilôeckei . Coupe sagittale jd'sp. Hertwig] 



(i)( rrpou'vov, >)vut.t/v^ ) 



