Fig. 9. _Mesocena stellata_, n. sp., × 600 1557 A single annular piece of the skeleton Fig. 10. _Dictyocha stapedia_, n. sp., × 300 1561 A complete specimen, observed living at Ceylon. In the centre is visible the large, spheroidal, tripylean central capsule, with its three openings, containing a large nucleus with numerous nucleoli. Its oral half is covered with the dark phæodium. The voluminous spherical calymma contains numerous globular alveoles and its surface is covered with scattered, stirrup-shaped pieces of the skeleton. Numerous free pseudopodia arise from the surface. Fig. 11. _Dictyocha stapedia_, n. sp., × 800 1561 A single piece of the skeleton, from above. Fig. 12. _Dictyocha stapedia_, n. sp., × 800 1561 A twin piece of the skeleton. Fig. 13. _Dictyocha medusa_, n. sp., × 800 1560 A single piece of the skeleton, from the side. Fig. 14. _Dictyocha medusa_, n. sp., × 800 1560 A single piece of the skeleton, from above. [Illustration: 1.-2. PHAEODINA, 3.-5. CANNORRHAPHIS, 6.-8. AULACTINIUM, 9. MESOCENA, 10.-14. DICTYOCHA.] PLATE 102. LEGION PHÆODARIA. Order PHÆOCYSTINA. Family AULACANTHIDA. Fig. 1. _Auloceros elegans_, n. sp., × 80 1584 A complete specimen, observed living at Ceylon. In the centre is visible the red central capsule with its three openings, containing a large nucleus of half the size, with numerous nucleoli. The alveolate calymma encloses a green excentric phæodium, is surrounded by a veil of interwoven tangential needles, and forms conical elevations, which enclose the piercing radial tubes. Between these radiate numerous pseudopodia (compare for the single parts, Pl. 103, fig. 1 and Pl. 104, figs. 1-3, and their explanation). Figs. 2-6. _Auloceros furcosus_, n. sp., × 100 1583 Distal ends of different radial tubes, exhibiting the great variability of this species. Fig. 7. _Auloceros trigeminus_, n. sp., × 300 1584 Distal end of a single tube. Fig. 8. _Auloceros capreolus_, n. sp., × 200 1584 Distal End of a Single Tube. Figs. 9, 10. _Auloceros cervinus_, n. sp., × 300 1584 Distal ends of two single tubes. Fig. 12. _Auloceros spathillaster_, n. sp., × 300 1585 Distal end of a single tube. Figs. 11, 13. _Auloceros arborescens_, n. sp., × 300 1585 Distal ends of two single tubes. [Illustration: AULOCERA.] PLATE 103. LEGION PHÆODARIA. Order PHÆOCYSTINA. Family AULACANTHIDA. Fig. 1. _Aulographis candelabrum_, n. sp., × 100 1583