English: Illustration from Report on the Radiolaria collected by Challenger during the years 1873-1876. Part III. Original description follows: Plate 49. Lithelida, Streblonida, Phorticida et Soreumida. Diam. Fig. 1. Spirema melonia, n. sp., × 300 Fig. 2. Lithelius solaris, n. sp. (the first central convolutions only), × 300 Fig. 3. Larcospira quadrangula, n. sp., × 300 Fig. 4. Pylospira octopyle, n. sp., × 300 Fig. 5. Tholospira cervicornis, n. sp., × 300 Fig. 6. Tholospira dendrophora, n. sp., × 300 Fig. 7. Spironium octonium, n. sp., × 300 Fig. 8. Streblacantha siderolina,
English: Illustration from Report on the Radiolaria collected by Challenger during the years 1873-1876. Part III. Original description follows: Plate 49. Lithelida, Streblonida, Phorticida et Soreumida. Diam. Fig. 1. Spirema melonia, n. sp., × 300 Fig. 2. Lithelius solaris, n. sp. (the first central convolutions only), × 300 Fig. 3. Larcospira quadrangula, n. sp., × 300 Fig. 4. Pylospira octopyle, n. sp., × 300 Fig. 5. Tholospira cervicornis, n. sp., × 300 Fig. 6. Tholospira dendrophora, n. sp., × 300 Fig. 7. Spironium octonium, n. sp., × 300 Fig. 8. Streblacantha siderolina, n. sp., × 300 Fig. 8a. Outlines of the chambers, × 200 Fig. 9. Streblopyle helicina, n. sp., × 300 Fig. 10. Phorticium pylonium, n. sp., × 300 Fig. 11. Spongophortis larnacilla, n. sp., × 200 Fig. 11a. The upper half of the cortical shell is removed. Figs. 11b to 11d. The enclosed medullary Larnacilla-shell. b, Dorsal view; c, lateral view; d, basal view. Fig. 12. Soreuma irregulare, n. sp., × 200 Fig. 13. Sorolarcus larnacillifer, n. sp., × 300 . 1887 66 Radiolaria (Challenger) Plate 049
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