Fig. 14. _Theopodium tricostatum_, n. sp., × 400 1328 Fig. 15. _Podocampe trictenota_, n. sp., × 500 1446 [Illustration: 1. 2. CORTINA, 3-7. MONOCYRTIDA, 8-13. DICYRTIDA, 14. THEOPODIUM, 15. PODOCAMPE.] PLATE 98. LEGION NASSELLARIA. Order CYRTOIDEA. Families TRIPOCALPIDA et PHÆNOCALPIDA. Fig. 1. _Euscenium plectaniscus_, n. sp., × 300 1146 Half frontal, half basal view. Fig. 2. _Cladoscenium pectinatum_, n. sp., × 400 1150 Shell opened by a vertical section. Fig. 3. _Archiscenium cyclopterum_, n. sp., × 400 1151 View from the dorsal side. Fig. 4. _Pteroscenium arcuatum_, n. sp., × 400 1152 The central capsule contains a large spherical nucleus with a nucleolus. Fig. 5. _Archipera cortiniscus_, n. sp., × 400 1155 Fig. 6. _Archibursa tripodiscus_, n. sp., × 400 1157 Basal view. Fig. 7. _Archipilium orthopterum_, n. sp., × 400 1139 Fig. 8. _Tripilidium costatum_, n. sp., × 300 1141 Fig. 8_a_. Central capsule in the upper part of the shell, Fig. 8_b_. Cortinar septum, Fig. 9. _Phænoscenium hexapodium_, n. sp., × 300 1175 Fig. 10. _Archiphæna gorgospyris_, n. sp., × 300 1178 Fig. 10_a_. Cortinar septum with four collar pores, × 300 Fig. 11. _Archiphormis urceolata_, n. sp., × 300 1168 Fig. 12. _Halicalyptra petalospyris_, n. sp., × 400 1169 Fig. 13. _Arachnocalpis ellipsoides_, n. sp., × 300 1172 The central capsule is filled up by clear vacuoles and exhibits in the upper half the ellipsoidal nucleus and four oil-globules, in the lower half the slender striated podoconus. Fig. 13_a_. A piece of the network, more enlarged, × 900 [Illustration: 1.-4. EUSCENIUM, 5. 6. ARCHIPERA, 7. 8. TRIPILIDIUM, 9. 10. ARCHIPHAENA, 11. 12. ARCHIPHORMIS, 13. ARACHNOCALPIS.] PLATE 99. LEGION PHÆODARIA. Order PHÆOGROMIA. Family CHALLENGERIDA. (The central capsule is coloured red and the phæodium green in Figs. 1, 6, 10, 14-17, 20). Fig. 1. _Challengeria murrayi_, n. sp., × 50 1653 From the dorsal side. Numerous streams of sarcode arise from the central capsule and pierce the calymma inside the shell. Fig. 2. _Challengeria wildi_, n. sp., × 400 1653 The peristome from the left side. Fig. 3. _Challengeria bromleyi_, n. sp., × 400 1652 From the dorsal side. Fig. 4. _Challengeria sloggettii_, John Murray × 150 1649 The ventral corner broken off. From the left side. Fig. 4_a_. Vertical section through the shell-wall. Fig. 5. _Challengeria tritonis_, n. sp., × 150 1649