English: Illustration from Report on the Radiolaria collected by Challenger during the years 1873-1876. Part III. Original description follows: Plate 2. Thalassosphærida. Diam. Fig. 1. Lampoxanthium pandora, n. sp., × 120 The central capsule exhibits distinct pore-canals in its membrane, and a clear interval between this and the coagulated and vacuolated protoplasm. The central nucleus contains numerous dark nucleoli. The spicula are scattered throughout the alveolate calymma. Fig. 2. Thalassoplancta brevispicula, n. sp. (vel Lampoxanthium brevispiculum), × 120 The central capsule
English: Illustration from Report on the Radiolaria collected by Challenger during the years 1873-1876. Part III. Original description follows: Plate 2. Thalassosphærida. Diam. Fig. 1. Lampoxanthium pandora, n. sp., × 120 The central capsule exhibits distinct pore-canals in its membrane, and a clear interval between this and the coagulated and vacuolated protoplasm. The central nucleus contains numerous dark nucleoli. The spicula are scattered throughout the alveolate calymma. Fig. 2. Thalassoplancta brevispicula, n. sp. (vel Lampoxanthium brevispiculum), × 120 The central capsule contains numerous clear vacuoles, and in the cortical zone a layer of large oil-globules. The central nucleus includes numerous dark nucleoli. The calymma is alveolate. The spicula lie only in the cortical zone. Fig. 3. Thalassoxanthium cervicorne, n. sp., × 300 The central capsule is filled up by clear vacuoles and contains a large central nucleus, with a single nucleolus. The spicula surround the thin calymma. Fig. 4. Thalassoxanthium cervicorne, n. sp., × 600 A single spiculum. Fig. 5. Thalassoxanthium medusinum, n. sp., × 120 The central capsule is filled up by clear vacuoles and contains on its cortical zone a layer of large oil-globules. The central nucleus contains numerous dark nucleoli. The calymma is radially striped, contains numerous small xanthellæ, and is surrounded by the spicula. Fig. 6. Thalassoxanthium octoceras, n. sp., × 400 Three isolated spicula. . 1887 65 Radiolaria (Challenger) Plate 002
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