Part 10

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. 9_a_. 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. 11_a_. A group of small ovate plates which compose the shell; in each plate a dimple with a porule, × 400

Fig. 11_b_. A cruciform perspinal hole, seen from the face, × 400

Fig. 11_c_. A cruciform perspinal hole, with its four teeth, seen in profile, × 400

PLATE 134.

LEGION ACANTHARIA.

Order SPHÆROPHRACTA.

Family DORATASPIDA.

Fig. 1. _Dodecaspis tricincta_, n. sp., × 400 834

The enclosed central capsule contains numerous spherical nuclei.

Fig. 2. _Lychnaspis minima_, n. sp., × 400 841

Six-sided basal pyramid of an equatorial spine, with the leaf-cross, seen from the centre.

Fig. 3. _Zonaspis cingulata_, n. sp., × 400 834

Equatorial section through the central capsule. n, nuclei; g, yellow bodies (intracapsular xanthellæ).

Fig. 4. _Zonaspis cingulata_, n. sp., × 800 834

Central pyramidal base of an equatorial spine, with the leaf-cross.

Fig. 5. _Stauraspis cruciata_, n. sp., × 400 831

Central union of the radial spines, three polar spines being taken off.

Fig. 6. _Lychnaspis longissima_, n. sp., × 400 841

Fig. 7. Lychnaspis minima, n. sp., × 400 841

Five-sided basal pyramid of a tropical spine, with the leaf-cross, seen from the centre.

Fig. 8. _Lychnaspis minima_, n. sp., × 400 841

Six-sided basal pyramid of a polar spine, with the leaf-cross, seen from the centre.

Fig. 9. _Icosaspis elegans_, n. sp., × 400 844

An isolated polar plate.

Fig. 10. _Icosaspis cruciata_, n. sp., × 400 844

An isolated equatorial plate.

Fig. 11, 12. _Dorataspis species_, × 100

Diagram of the composition of the shell of twenty plates (and also of the central union of the basal leaf-cross).

Fig. 11. Oblique equatorial aspect.

Fig. 12. Accurate polar aspect (compare p. 804, 805).

Fig. 13. _Coscinaspis isopora_, n. sp., × 400 828

An isolated equatorial plate (with two aspinal and six coronal pores).

Fig. 14. _Coscinaspis isopora_, n. sp., × 400 828

Two isolated tropical plates (_b_, northern; _d_, southern), each with two aspinal and five coronal pores.

Fig. 15. _Diporaspis nephropora_, n. sp., × 400 816

Fig. 16. _Acontaspis hastata_, n. sp., × 400 829

PLATE 135.

LEGION ACANTHARIA.

Order SPHÆROPHRACTA.

Families SPHÆROCAPSIDA et DORATASPIDA.

Fig. 1. _Hylaspis serrulata_, n. sp., × 300 846

Fig. 2. _Lychnaspis undulata_, n. sp., × 400 841

Fig. 3. _Lychnaspis giltschii_, n. sp., × 400 839

The spherical central capsule is enclosed in the shell.

Fig. 4. _Lychnaspis rottenburgii_, n. sp., × 400 841

Fig. 5. _Zonaspis æquatorialis_, n. sp., × 300 834

Fig. 6. _Sphærocapsa cruciata_, n. sp., × 150 798

The entire shell, with its twenty cruciate perspinal holes.

Fig. 7. _Sphærocapsa cruciata_, n. sp., × 800 798

Insertion of one spine in the cruciate perspinal hole of the shell.

Fig. 8. _Sphærocapsa quadrata_, n. sp., × 800 798

A group of pores and dimples in the shell surface.

Fig. 9. _Sphærocapsa dentata_, n. sp., × 800 798

Insertion of one spine in the cruciate perspinal hole of the shell.

Fig. 10. _Sphærocapsa pavimentata_, n. sp., × 800 798

Insertion of one spine in the perspinal hole of the shell, which is composed of four cruciate aspinal holes and surrounded by a group of dimples and pores.

PLATE 136.

LEGION ACANTHARIA.

Orders SPHÆROPHRACTA ET PRUNOPHRACTA.

Families DORATASPIDA et BELONASPIDA.

Fig. 1. _Tessaraspis arachnoides_, n. sp., × 300 836

Fig. 2. _Icosaspis tabulata_, n. sp., × 200 843

Fig. 3. _Icosaspis icosastaura_, n. sp., × 400 846

Fig. 4. _Icosaspis elegans_, n. sp., × 300 844

Fig. 5. _Tessaraspis concreta_, n. sp., × 400 838

Fig. 6. _Phatnaspis cristata_, n. sp., × 400 869

Fig. 7. _Phatnaspis haliommidium_, n. sp., × 200 871

Central capsule within the shell--outline.

Fig. 8. _Coscinaspis polypora_, n. sp., × 300 827

A single lattice-plate of the shell.

Fig. 9. _Phatnaspis lacunaria_, n. sp., × 400 869

PLATE 137.

LEGION ACANTHARIA.

Order SPHÆROPHRACTA.

Family DORATASPIDA.

Fig. 1. _Phractaspis complanata_, n. sp., × 400 809

Fig. 2. _Phractaspis prototypus_, n. sp., × 400 809

Fig. 3. _Phractaspis constricta_, n. sp., × 400 810

Fig. 4. _Pleuraspis horrida_, n. sp., × 400 811

Fig. 5. _Stauruspis stauracantha_, n. sp., × 300 832

Fig. 6. _Stauruspis stauracantha_, n. sp., × 600 832

A single spine.

Fig. 7. _Echinaspis echinoides_, n. sp., × 300 833

Fig. 8. _Echinaspis echinoides_, n. sp., × 800 833

A single spine.

Fig. 9. _Coscinaspis parmipora_, n. sp., × 400 827

PLATE 138.

LEGION ACANTHARIA.

Order SPHÆROPHRACTA.

Family DORATASPIDA.

Fig. 1. _Coscinaspis peripora_ (vel _Dorataspis peripora_), n. sp., × 300 826

Fig. 2. _Dorataspis fusigera_, n. sp., × 400 813

Fig. 3. _Dorataspis micropora_, n. sp., × 300 815

Fig. 4. _Dorataspis typica_, n. sp., × 300 815

Fig. 4_a_. Polar view of the central union of the twenty spines, × 300 815

Fig. 5. _Ceriaspis inermis_, n. sp., × 400 821

Fig. 6. _Ceriaspis favosa_, n. sp., × 400 821

Fig. 7. _Hystrichaspis fruticata_, n. sp., × 300 825

Fig. 8. _Hystrichaspis pectinata_, n. sp., × 300 822

Fig. 9. _Hystrichaspis furcata_, n. sp., × 400 822

Fig. 10. _Hystrichaspis dorsata_, n. sp., × 300 823

Fig. 11. _Hystrichaspis cristata_ (vel _Siphonaspis cristata_, n. sp.), × 400 823

PLATE 139.

LEGION ACANTHARIA.

Order PRUNOPHRACTA.

Families BELONASPIDA et HEXALSPIDA.

Fig. 1. _Hexacolpus nivalis_, n. sp., × 300 880

Fig. 2. _Hexalaspis heliodiscus_, n. sp., × 300 875

Fig. 3. _Hexaconus ciliatus_, n. sp., × 300 876

Fig. 4. _Hexaconus serratus_, n. sp., × 300 877

_c_, Central base of an equatorial spine; _d_, central base of a tropical spine.

Fig. 5. _Hexaconus coronatus_, n. sp., × 300 877

Fig. 6. _Hexaconus velatus_, n. sp., × 300 877

Marginal view of the shell.

Fig. 7. _Hexaconus vaginatus_, n. sp., × 300 877

Fig. 8. _Thoracaspis bipennis_, n. sp., × 300 862

Fig. 9. _Belonaspis datura_, n. sp., × 400 863

PLATE 140.

LEGION ACANTHARIA.

Order PRUNOPHRACTA.

Families BELONASPIDA, HEXALASPIDA et DIPLOCONIDA.

Fig. 1. _Diploconus amalla_, n. sp., × 300 885

Fig. 2. _Diploconus hexaphyllus_, n. sp., × 300 886

Fig. 3. _Diploconus cyathiscus_, n. sp., × 300 885

Fig. 4. _Diploconus cotyliscus_, n. sp., × 400 886

Polar view.

Fig. 5. _Diplocolpus serratus_, n. sp., × 300 888

Fig. 6. _Diplocolpus cristatus_, n. sp., × 400 887

Fig. 7. _Diplocolpus costatus_, n. sp., × 400 887

Fig. 8. _Diplocolpus sulcatus_, n. sp., × 300 888

Fig. 9. _Diplocolpus dentatus_, n. sp., × 300 888

Meridional section through the centre of the shell.

Fig. 10. _Hexacolpus infundibulum_, n. sp., × 300 881

Fig. 11. _Hexacolpus trypanon_, n. sp., × 300 881

Fig. 12. _Hexaconus echinatus_, n. sp., × 300 878

Fig. 13. _Coleaspis vaginata_, n. sp., × 300 866

Meridional section through the shell.

Fig. 14. _Coleaspis hydrotomica_, n. sp., × 400 867

Fig. 15. _Hexonaspis hexapleura_, n. sp., × 400 879

A single spine with its thick apophyses.

Fig. 16. Hexonaspis hastata, n. sp., × 400 879

* * * * * *

* * * * *

Corrections made to printed text

Plate 4, heading: 'Order BELOIDEA. Family Sphærozoida.' corrected from 'Order LARCOIDEA. Family Tholonida.'

Plate 22, fig. 11: 'quadricuspis' corrected from 'quadricuspsis'.

Plate 31, fig. 9: 'distyliscus' corrected from 'dictyliscus'.

Plate 45, fig. 11: 'maclaganium' corrected from 'maclagganium' (per text).

Plate 66, fig. 3: 'dioscoridis' corrected from 'discoridis'.

Plate 96, heading: 'Lithobotryida' corrected from 'Lihtobotryida'.

Plate 105, fig. 11: 'gemmascens' corrected from 'gemmasceus'

Plate 128, fig. 2: 'rhinocannæ' (first time) corrected from 'rhinnocannæ'