Fig. 1. _Phractopelta dorataspis_, n. sp., × 300 852 Fig. 2. _Dorypelta tessaraspis_, n. sp., × 300 858 Fig. 3. _Stauropelta cruciata_, n. sp., × 400 859 Fig. 4. _Pantopelta icosaspis_, n. sp., × 400 855 Meridional section through the double shell. Fig. 5. _Octopelta scutella_, n. sp., × 400 856 Proximal part of two meeting spines, isolated. Fig. 6. _Orophaspis furcata_, n. sp., × 400 818 Fig. 7. _Porocapsa murrayana_, n. sp., × 300 800 The central capsule is filled up by spherical vacuoles and enclosed by the porous shell; in the centre radii of small granules (nuclei ?) occur. Fig. 8. _Cannocapsa stethoscopium_, n. sp., × 300 801 The shell alone. Fig. 9. _Astrocapsa coronata_, n. sp., × 400 799 Middle part of one spine with the four aspinal holes. Fig. 9_a_. Transverse section of a radial spine, with the four surrounding aspinal holes and the neighbouring part of the shell, × 400 Fig. 10. _Astrocapsa stellata_, n. sp., × 400 799 Part of one spine, with the aspinal holes and their four triangular teeth. Fig. 11. _Cenocapsa nirvana_, n. sp., × 200 802 The entire shell, with its pavement of small plates and the twenty cruciform perspinal holes. Fig. 11_a_. A group of small ovate plates which compose the shell; in each plate a dimple with a porule, × 400 Fig. 11_b_. A cruciform perspinal hole, seen from the face, × 400 Fig. 11_c_. A cruciform perspinal hole, with its four teeth, seen in profile, × 400 [Illustration: 1.-5. PHRACTOPELTA, 6. OROPHASPIS, 7. POROCAPSA, 8. CANNOCAPSA, 9. 10. ASTROCAPSA, 11. CENOCAPSA.] PLATE 134. LEGION ACANTHARIA. Order SPHÆROPHRACTA. Family DORATASPIDA. Fig. 1. _Dodecaspis tricincta_, n. sp., × 400 834 The enclosed central capsule contains numerous spherical nuclei. Fig. 2. _Lychnaspis minima_, n. sp., × 400 841 Six-sided basal pyramid of an equatorial spine, with the leaf-cross, seen from the centre. Fig. 3. _Zonaspis cingulata_, n. sp., × 400 834 Equatorial section through the central capsule. n, nuclei; g, yellow bodies (intracapsular xanthellæ). Fig. 4. _Zonaspis cingulata_, n. sp., × 800 834 Central pyramidal base of an equatorial spine, with the leaf-cross. Fig. 5. _Stauraspis cruciata_, n. sp., × 400 831 Central union of the radial spines, three polar spines being taken off. Fig. 6. _Lychnaspis longissima_, n. sp., × 400 841