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

Orders ACTINELLIDA et ACANTHONIDA.

Families Astrolophida, Astrolonchida et Amphilonchida.

PLATE 132. N.B.—The signification of the characters is the same in all the figures (compare p. [718]). a. Northern polar spines. b. Northern tropical spines. c. Equatorial spines. d. Southern tropical spines. e. Southern polar spines. Astrolophida, Astrolonchida et Amphilonchida. Diam. Page. Fig. 1. Amphilonche lanceolata, n. sp., × 300 [783] Fig. 2. Amphilonche hydrotomica, n. sp., × 300 [786] The spindle-shaped central capsule is filled up with small granules. The clear calymma forms conical sheaths for the spines, with myophriscs. Fig. 3. Amphilonche diodon, n. sp., × 300 [783] Fig. 4. Amphilonche concreta, n. sp., × 100 [787] A complete specimen with the cylindrical central capsule. Fig. 4a. Central part of the skeleton, × 400 Fig. 5. Amphilonche violina, n. sp., × 300 [787] Fig. 6. Amphilonche conica, n. sp., × 300 [785] The ellipsoidal central capsule contains numerous nuclei and is enclosed by the calymma. The conical sheaths of the latter include the radial spines completely and exhibit coronets of myophriscs. Fig. 7. Acantholonche amphipolaris, n. sp., × 200 [790] Fig. 8. Acantholonche peripolaris, n. sp., × 300 [791] Fig. 9. Amphibelone pyramidata, n. sp., × 300 [789] Fig. 10. Amphibelone cultellata, n. sp., × 400 [789] The central capsule contains numerous spherical nuclei and is enclosed by the hyaline calymma, which forms conical sheaths around the spines. Fig. 11. Stauracantha johannis, n. sp., × 400 [763] Basal part of a radial spine, exhibiting the peculiar torsion of the basal leaf-cross and the central apex. Fig. 12. Astrolophus solaris, n. sp., × 200 [732] Fig. 12a. A group of larger and smaller radial spines united in the centre. Fig. 12b. Three isolated spines (one larger and two smaller), × 200

PLATE 132.
Astrolophida, Astrolonchida et Amphilonchida.
Diam.			Page.
Fig. 1. Amphilonche lanceolata, n. sp.,	×	300	[783]
Fig. 2. Amphilonche hydrotomica, n. sp.,	×	300	[786]
The spindle-shaped central capsule is filled up with small granules. The clear calymma forms conical sheaths for the spines, with myophriscs.
Fig. 3. Amphilonche diodon, n. sp.,	×	300	[783]
Fig. 4. Amphilonche concreta, n. sp.,	×	100	[787]
A complete specimen with the cylindrical central capsule.
Fig. 4a. Central part of the skeleton,	×	400
Fig. 5. Amphilonche violina, n. sp.,	×	300	[787]
Fig. 6. Amphilonche conica, n. sp.,	×	300	[785]
The ellipsoidal central capsule contains numerous nuclei and is enclosed by the calymma. The conical sheaths of the latter include the radial spines completely and exhibit coronets of myophriscs.
Fig. 7. Acantholonche amphipolaris, n. sp.,	×	200	[790]
Fig. 8. Acantholonche peripolaris, n. sp.,	×	300	[791]
Fig. 9. Amphibelone pyramidata, n. sp.,	×	300	[789]
Fig. 10. Amphibelone cultellata, n. sp.,	×	400	[789]
The central capsule contains numerous spherical nuclei and is enclosed by the hyaline calymma, which forms conical sheaths around the spines.
Fig. 11. Stauracantha johannis, n. sp.,	×	400	[763]
Basal part of a radial spine, exhibiting the peculiar torsion of the basal leaf-cross and the central apex.
Fig. 12. Astrolophus solaris, n. sp.,	×	200	[732]
Fig. 12a. A group of larger and smaller radial spines united in the centre.
Fig. 12b. Three isolated spines (one larger and two smaller),	×	200

PLATE 133.

Legion ACANTHARIA.

Order SPHÆROPHRACTA.

Families Sphærocapsida, Dorataspida et Phractopeltida.

PLATE 133. N.B.—The signification of the characters is the same in all the figures (compare p. [718]). a. Northern polar spines. b. Northern tropical spines. c. Equatorial spines. d. Southern tropical spines. e. Southern polar spines. Sphærocapsida, Dorataspida et Phractopeltida. Diam. Page. Fig. 1. Phractopelta dorataspis, n. sp., × 300 [852] Fig. 2. Dorypelta tessaraspis, n. sp., × 300 [858] Fig. 3. Stauropelta cruciata, n. sp., × 400 [859] Fig. 4. Pantopelta icosaspis, n. sp., × 400 [855] Meridional section through the double shell. Fig. 5. Octopelta scutella, n. sp., × 400 [856] Proximal part of two meeting spines, isolated. Fig. 6. Orophaspis furcata, n. sp., × 400 [818] Fig. 7. Porocapsa murrayana, n. sp., × 300 [800] The central capsule is filled up by spherical vacuoles and enclosed by the porous shell; in the centre radii of small granules (nuclei ?) occur. Fig. 8. Cannocapsa stethoscopium, n. sp., × 300 [801] The shell alone. Fig. 9. Astrocapsa coronata, n. sp., × 400 [799] Middle part of one spine with the four aspinal holes. Fig. 9a. Transverse section of a radial spine, with the four surrounding aspinal holes and the neighbouring part of the shell, × 400 Fig. 10. Astrocapsa stellata, n. sp., × 400 [799] Part of one spine, with the aspinal holes and their four triangular teeth. Fig. 11. Cenocapsa nirvana, n. sp., × 200 [802] The entire shell, with its pavement of small plates and the twenty cruciform perspinal holes. Fig. 11a. A group of small ovate plates which compose the shell; in each plate a dimple with a porule, × 400 Fig. 11b. A cruciform perspinal hole, seen from the face, × 400 Fig. 11c. A cruciform perspinal hole, with its four teeth, seen in profile, × 400