312 



COMPARATIVE ANATOMY 



CHAP. 



FIG. 259. A, Cystoblastus Leuchtenbergi. 

 1, Interradial ; 2, 3, radial ; 9, basal ; 10, infra- 

 basal ; 8, anus ; 6, genital aperture. B, From 

 the oral side (after Volborth). 4, Mouth; 5, 

 ambulacrum. Fig. 295, p. 332, shows the apical 

 side. 







;. -jr.*. Ante don incisa (after P. H. 

 Carpenter). 1, Anns; 2, cirri. 



FIG. 260. Protocrinus oviformis, Eicliwald 

 (after Volborth). 2, Anns ; 1, tliird aperture ; 3. 

 ambulacrum. 



