Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Plates / Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII

by Ernst Haeckel

Order PHÆOCYSTINA.

Family Aulacanthida.

PLATE 102. Aulacanthida. Diam. Page. 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.

PLATE 102.
Aulacanthida.
Diam.			Page.
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.

PLATE 103.

Legion PHÆODARIA.

Order PHÆOCYSTINA.

Family Aulacanthida.

PLATE 103. Aulacanthida. Diam. Page. Fig. 1. Aulographis candelabrum, n. sp., × 100 [1583] p, The dark phæodium surrounding the central capsule on its oral part; a, a part of the surrounding alveolate calymma, also surrounding the central capsule; s, the veil of tangential needles covering the surface of the alveolate calymma; r, the big radial tubes, seven of which are visible, with an elegant verticil of terminal branches; f, the numerous pseudopodia radiating between the branches. The central capsule exhibits the following parts:—o, Astropyle; u, parapylæ; e, outer membrane; i, inner membrane; v, vacuoles; n, nucleus; l, nucleoli. Figs. 2-9. Aulographis pandor, n. sp., × 100 [1577] Distal ends of various radial tubes of a single specimen, exhibiting the extraordinary variability of this species. Fig. 10. Aulographis furcula, n. sp., × 400 [1580] A two-branched tube. Fig. 11. Aulographis furcula, n. sp., × 400 [1580] A three-branched tube. Figs. 12, 13. Aulographis bovicornis, n. sp., × 200 [1577] Two tubes with two branches. Fig. 14. Aulographis bovicornis, n. sp., × 200 [1577] A tube with three branches. Fig. 15. Aulographis triangulum, n. sp., × 200 [1580] A single tube. Fig. 16. Aulographis taumorpha, n. sp., × 300 [1577] Two tubes, each with two branches. Fig. 17. Aulographis triglochin, n. sp., × 300 [1578] A tube with three branches. Figs. 18, 19. Aulographis hexancistra, n. sp., × 300 [1581] Distal end of two tubes (one with four, the other with five terminal branches). Fig. 20. Aulographis dentata, n. sp., × 200 [1582] Distal end of a single tube. Fig. 21. Aulographis ancorata, n. sp., × 300 [1578] Two tubes, each with four recurved branches. Fig. 22. Aulographis tetrancistra, n. sp., × 300 [1581] A single tube. Fig. 23. Aulographis stellata, n. sp., × 300 [1578] a and b, Two rudimentary or incompletely developed tubes; c, a well-developed tube of the usual form. Fig. 24. Aulographis asteriscus, n. sp., × 300 [1581] Terminal verticil of a single tube. Fig. 25. Aulographis cruciata, n. sp., × 300 [1578] Distal end of a single tube. Fig. 26. Aulographis pulvinata, n. sp., × 400 [1582] Distal end of a single tube. Fig. 27. Aulographis serrulata, n. sp., × 400 [1582] Distal end of a single tube.