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

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.

PLATE 104.

Legion PHÆODARIA.

Order PHÆOCYSTINA.

Family Aulacanthida.

PLATE 104. Aulacanthida. Diam. Page. Aulacanthida. Fig. 1. Aulospathis bifurca, n. sp., × 50 [1586] A complete specimen, excellently preserved, with an ovate alveolate calymma and two central capsules. The surface of the calymma is covered with tangential needles. Fig. 2. Aulospathis bifurca, n. sp., × 100 [1586] An isolated central capsule of another specimen, surrounded by granules of the phæodium. o, Radiate operculum of the astropyle; u, the two lateral parapylæ; e, external membrane of the capsule; i, internal membrane; c, vacuoles in the protoplasm; n, nucleus; l, numerous nucleoli. Fig. 3. Aulospathis bifurca, n. sp., × 80 [1586] Two central capsules of another specimen, surrounded by the phæodium (Self-division). Characters as in fig. 2. Fig. 4. Aulospathis bifurca, n. sp., × 100 [1586] A single radial tube. Fig. 5. Aulospathis bifurca, n. sp., × 200 [1586] Distal part of another radial tube, partly filled up by air-bubbles. Fig. 6. Aulospathis trifurca, n. sp., × 200 [1586] Distal part of a single radial tube. Fig. 7. Aulospathis trifurca, n. sp., × 200 [1586] Distal part of another radial tube. Fig. 8. Aulospathis triodon, n. sp., × 100 [1587] A single radial tube. Fig. 9. Aulospathis tetrodon, n. sp., × 200 [1588] Distal end of single tube. Figs. 10-13. Aulospathis polymorpha, n. sp., × 400 [1587] Four single terminal branches with very different forms of spathillæ. Figs. 14-17. Aulospathis variabilis, n. sp., × 400 [1588] Four single terminal branches with very different forms of spathillæ.

PLATE 104.
Aulacanthida.
Diam.			Page.
Aulacanthida.
Fig. 1. Aulospathis bifurca, n. sp.,	×	50	[1586]
A complete specimen, excellently preserved, with an ovate alveolate calymma and two central capsules. The surface of the calymma is covered with tangential needles.
Fig. 2. Aulospathis bifurca, n. sp.,	×	100	[1586]
An isolated central capsule of another specimen, surrounded by granules of the phæodium. o, Radiate operculum of the astropyle; u, the two lateral parapylæ; e, external membrane of the capsule; i, internal membrane; c, vacuoles in the protoplasm; n, nucleus; l, numerous nucleoli.
Fig. 3. Aulospathis bifurca, n. sp.,	×	80	[1586]
Two central capsules of another specimen, surrounded by the phæodium (Self-division). Characters as in fig. 2.
Fig. 4. Aulospathis bifurca, n. sp.,	×	100	[1586]
A single radial tube.
Fig. 5. Aulospathis bifurca, n. sp.,	×	200	[1586]
Distal part of another radial tube, partly filled up by air-bubbles.
Fig. 6. Aulospathis trifurca, n. sp.,	×	200	[1586]
Distal part of a single radial tube.
Fig. 7. Aulospathis trifurca, n. sp.,	×	200	[1586]
Distal part of another radial tube.
Fig. 8. Aulospathis triodon, n. sp.,	×	100	[1587]
A single radial tube.
Fig. 9. Aulospathis tetrodon, n. sp.,	×	200	[1588]
Distal end of single tube.
Figs. 10-13. Aulospathis polymorpha, n. sp.,	×	400	[1587]
Four single terminal branches with very different forms of spathillæ.
Figs. 14-17. Aulospathis variabilis, n. sp.,	×	400	[1588]
Four single terminal branches with very different forms of spathillæ.

PLATE 105.