PLATE 134. 



N.B. — The signification of the characters is the same in all the figures (compare p. 718). 



a. Northern polar spines. 



h. Northern tropical spines. 



c. Equatorial spines. 



d. Southern tropical spines. 



e. Southern polar spines. 



DOEATASPIDA. 



Fig. 1. Dodecaspis tricincta, n. sp., . 



The enclosed central capsule contains numerous spherical nuclei. 



Fig. 2, Lychnaspis minima, n. sp., ..... 

 Six-sided basal pyramid of an equatorial spine, with the leaf-cross, seen 

 from the centre. 



Fig. 3. Zonaspis cingulata, n. sp., 



Equatorial section through the central capsule, n, nuclei; g, yellow 

 bodies (intracapsular xanthellae). 



Fig. 4, Zonaspis cingulata, n. sp., 



Central pyramidal base of an equatorial spine, with the leaf-cross. 



Fig. 5. Stauraspis crucial a, n. sp., . 



Central union of the radial spines, three polar spines being taken off. 



Fig. 6. Lychnaspis longissima, n. sp., 



Fig. 7. Lychnaspis minima, n. sp., . 



Five-sided basal pyramid of a tropical spine, with the leaf-cross, seen from 

 the centre. 



Fig. 8. Lychnaspis minima, n. sp., . . . . 



Six-sided basal pyramid of a polar spine, with the leaf-cross, seen from 

 the centre. 



Fig. 9. Icosaspis elegans, n. sp., 

 An isolated polar plate. 



Fig. 10 Lcosaspis cruciata, n. sp., 

 An isolated equatorial plate. 



Figs. 11, 12. Dorataspis species, ..... 



Diagram of the composition of the shell of twenty plates (and also of the 



central union of the basal leaf-cross). 

 Fig. 11. Oblique equatorial aspect. 

 Fig. 12. Accurate polar aspect (compare p. 804, 805). 



Fig. 13. Coscinaspis isopora, n. sp., . 



An isolated equatorial plate (with two aspinal and six coronal pores). 



Fig. 14. Coscinaspis isopora, n. sp., . 



Two isolated tropical plates (b, northern; d, southern), each with two 

 aspinal and five coronal pores). 



Fig. 15. Diporaspis nephropora, n. sp., 



Fig. 16. Acontaspis hastata, n. sp., ..... 



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