Apical view of the shell, after removal of the cephalis. Fig. 12. _Clathrocyclas europæ_, n. sp., × 400 1388 Central capsule, seen from above, with the quadrilobate nucleus. Fig. 13. _Clathrocyclas danaës_, n. sp., × 300 1388 Vertical section through the cephalis and the quadrilobate central capsule, with the quadrilobate nucleus. Fig. 14. _Clathrocyclas danaës_, n. sp., × 300 1388 Apical view of the shell. [Illustration: 1.-10. EUCECRYPHALUS, 11.-14. CECRYPHALIUM.] PLATE 60. LEGION NASSELLARIA. Order CYRTOIDEA. Family TRIPOCYRTIDA. Fig. 1. _Dictyophimus cienkowskii_, n. sp. (vel _Lamprotripus squarrosus_), × 300 1200 Shell seen from the side. Fig. 2. _Dictyophimus bütschlii_, n. sp. (vel _Lamprotripus horridus_), × 300 1201 Fig. 3. _Dictyophimus hertwigii_, n. sp. (vel _Lamprotripus spinosus_), × 400 1201 The cephalis of the shell includes the central capsule, with three lobes depending in the pyramidal thorax. Fig. 4. _Dictyophimus platycephalus_, n. sp., × 400 1198 Central capsule with four thoracic lobes, each of which contains an oil-globule; kidney-shaped nucleus in the cephalic lobe. Fig. 5. _Dictyophimus platycephalus_, n. sp., × 400 1198 Shell seen from the side. Fig. 6. _Dictyophimus brandtii_, n. sp., × 300 1198 Shell seen from the base, with the four large pores of the collar septum, two minor jugular and two major cardinal pores. Fig. 7. _Lampromitra coronata_, n. sp., × 400 1214 Shell seen from below, with the quadrilobate central capsule. Fig. 7_a_. A portion of the shell-margin, × 800 1214 Fig. 8. _Lampromitra arborescens_, n. sp., × 400 1216 Shell from above. Fig. 8_a_. The collar septum with the four crossed rods of the cortina, × 400 1216 Fig. 9. _Tripocyrtis plectaniscus_, n. sp., × 400 1202 Fig. 10. _Tripocyrtis plagoniscus_, n. sp., × 400 1201 [Illustration: 1.-6. LAMPROTRIPUS, 7.-10. LAMPROMITRA.] PLATE 61. LEGION NASSELLARIA. Order CYRTOIDEA. Family TRIPOCYRTIDA. Fig. 1. _Dictyophimus cortina_, n. sp., × 400 1197 Fig. 2. _Lychnocanium pudicum_, n. sp., × 200 1230 Fig. 3. _Dictyophimus longipes_, n. sp., × 400 1197 Fig. 4. _Lychnocanium clavigerum_, n. sp., × 300 1230 Fig. 5. _Dictyophimus lasanum_, n. sp., × 300 1197 Fig. 6. _Lychnocanium favosum_, n. sp., × 300 1225