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

Family Medusettida.

PLATE 119. Medusettida. Diam. Page. Fig. 1. Gorgonetta mirabilis, n. sp., × 100 [1674] The entire body. From the margin of the cap-shaped shell arise six ascending arborescent feet and six alternating descending feet, which are covered with anchor-pencils and branched at the distal end. From the mouth of the delicately alveolate shell depend prominent parts of the dark voluminous phæodium. Fig. 2. Gorgonetta mirabilis, n. sp., × 300 [1674] The distal end of an ascending foot; the branches bear a terminal spathilla with small recurved teeth. Fig. 3. Gorgonetta mirabilis, n. sp., × 300 [1674] The distal end of a descending foot, with three lateral anchor-pencils and three terminal branches (broken off). Odd alveole contains an air-bubble. Fig. 4. Gorgonetta mirabilis, n. sp., × 600 [1674] A single thread of an anchor-pencil with two quadridentate spathillæ, a larger proximal and a smaller distal (terminal).

PLATE 119.
Medusettida.
Diam.			Page.
Fig. 1. Gorgonetta mirabilis, n. sp.,	×	100	[1674]
The entire body. From the margin of the cap-shaped shell arise six ascending arborescent feet and six alternating descending feet, which are covered with anchor-pencils and branched at the distal end. From the mouth of the delicately alveolate shell depend prominent parts of the dark voluminous phæodium.
Fig. 2. Gorgonetta mirabilis, n. sp.,	×	300	[1674]
The distal end of an ascending foot; the branches bear a terminal spathilla with small recurved teeth.
Fig. 3. Gorgonetta mirabilis, n. sp.,	×	300	[1674]
The distal end of a descending foot, with three lateral anchor-pencils and three terminal branches (broken off). Odd alveole contains an air-bubble.
Fig. 4. Gorgonetta mirabilis, n. sp.,	×	600	[1674]
A single thread of an anchor-pencil with two quadridentate spathillæ, a larger proximal and a smaller distal (terminal).

PLATE 120.

Legion PHÆODARIA.

Order PHÆOGROMIA.

Family Medusettida.

PLATE 120. Medusettida. Diam. Page. Fig. 1. Medusetta codonium, n. sp., × 400 [1668] Fig. 2. Medusetta quadrigata, n. sp., × 400 [1668] The central capsule is visible in the upper half, the phæodium in the lower half of the shell-cavity. Fig. 3. Medusetta tetranema, n. sp., × 400 [1669] Fig. 4. Medusetta craspedota, n. sp., × 400 [1669] Fig. 5. Gazelletta hexanema, n. sp., × 300 [1671] Fig. 6. Gazelletta bifurca, n. sp., × 300 [1672] A single alveolate foot. Fig. 7. Gazelletta macronema, n. sp., × 200 [1671] Oral view of the shell. Fig. 8. Gazelletta macronema, n. sp., × 800 [1671] Three joints of an alveolate foot. Fig. 9. Gazelletta cyrtonema, n. sp., × 300 [1671] The upper part of the shell encloses the central capsule with its nucleus. The voluminous phæodium is prominent over the mouth. Fig. 10. Gazelletta orthonema, n. sp., × 200 [1671] The central capsule and its nucleus are visible in the shell-cavity. Fig. 11. Gazelletta schleinitzii, n. sp., × 400 [1673] Oblique apical view, with the enclosed central capsule, the nucleus of which contains numerous nucleoli. Fig. 12. Gazelletta schleinitzii, n. sp., × 300 [1673] A single alveolate foot. Fig. 13. Gazelletta trispathilla, n. sp., × 400 [1673] The middle part of a foot. Fig. 14. Gazellatta robusta, n. sp., × 300 [1673] The base of a foot, exhibiting the pores of the alveoli. Fig. 15. Gazelletta studeri, n. sp., × 400 [1673] The distal end of a foot; four alveoli filled up by air-bubbles. Fig. 16. Gazelletta dendronema, n. sp., × 300 [1674] A part of the velum, seen from the inside. The alveoles are partly filled by air.

PLATE 120.
Medusettida.
Diam.			Page.
Fig. 1. Medusetta codonium, n. sp.,	×	400	[1668]
Fig. 2. Medusetta quadrigata, n. sp.,	×	400	[1668]
The central capsule is visible in the upper half, the phæodium in the lower half of the shell-cavity.
Fig. 3. Medusetta tetranema, n. sp.,	×	400	[1669]
Fig. 4. Medusetta craspedota, n. sp.,	×	400	[1669]
Fig. 5. Gazelletta hexanema, n. sp.,	×	300	[1671]
Fig. 6. Gazelletta bifurca, n. sp.,	×	300	[1672]
A single alveolate foot.
Fig. 7. Gazelletta macronema, n. sp.,	×	200	[1671]
Oral view of the shell.
Fig. 8. Gazelletta macronema, n. sp.,	×	800	[1671]
Three joints of an alveolate foot.
Fig. 9. Gazelletta cyrtonema, n. sp.,	×	300	[1671]
The upper part of the shell encloses the central capsule with its nucleus. The voluminous phæodium is prominent over the mouth.
Fig. 10. Gazelletta orthonema, n. sp.,	×	200	[1671]
The central capsule and its nucleus are visible in the shell-cavity.
Fig. 11. Gazelletta schleinitzii, n. sp.,	×	400	[1673]
Oblique apical view, with the enclosed central capsule, the nucleus of which contains numerous nucleoli.
Fig. 12. Gazelletta schleinitzii, n. sp.,	×	300	[1673]
A single alveolate foot.
Fig. 13. Gazelletta trispathilla, n. sp.,	×	400	[1673]
The middle part of a foot.
Fig. 14. Gazellatta robusta, n. sp.,	×	300	[1673]
The base of a foot, exhibiting the pores of the alveoli.
Fig. 15. Gazelletta studeri, n. sp.,	×	400	[1673]
The distal end of a foot; four alveoli filled up by air-bubbles.
Fig. 16. Gazelletta dendronema, n. sp.,	×	300	[1674]
A part of the velum, seen from the inside. The alveoles are partly filled by air.