CALLIASTERELLIN^E. 



107 



Asteroid. The Text-figures given here are taken from this paper, and they 

 illustrate the real affinities of the form. 



no 



109 



Text-fig. 109. — Reconstruction of CaUiasterella mira (after Schondorf). x J. 



Text-fig. 110.— Plan of the ossicles on the disc of CaUiasterella mira (after Schondorf). C, centrale : 

 I.M., infero-marginalia ; O., odontophor; E., radialia ; X. + X.. fused adradialia (proximal inter- 

 radial), x 15. 



Text-fig. 109 shows the small disc, long arms, and prominent odontophor, and 

 all these features indicate a close relationship with the Urasterellidae. The 



112 



in 



HK 



Text-fig. 111. — Cross-section through the arm of CaUiasterella mira (after Schondorf). I.M., infero- 

 marginalia ; F., radialia. x T4. 

 Text-fig. 112. — Plan of ossicles in the mouth-region of CaUiasterella mira (after Schondorf). Am., 



ambulacral; M.P., mouth-angle plate. 



rounded arms rolled up ventrally present, as Schondorf noted, a strong superficial 

 resemblance to the American Carboniferous Ophiuroid Ony chaster flexilis, Meek 



