Fig. 3. _Tuscarora wyvillei_, n. sp., × 30 1707

View from the dorsal side.

Fig. 3_a_. Base of a tooth, × 100

Fig. 3_b_. Transverse section through the base of a tooth.

Fig. 3_c_. Base of a foot.

Fig. 4. _Tuscarora tetrahedra_, John Murray, × 15 1707

View from the dorsal side.

Fig. 4_a_. Mouth with the three teeth, × 50

Fig. 5. _Tuscarora tubulosa_, John Murray, × 40 1707

View from the ventral side.

Fig. 5_a_. Mouth with the two teeth, × 100

Fig. 5_b_. Basal part of a single tooth, × 150

Fig. 6. _Tuscarora porcellana_, John Murray, × 600 1708

Fig. 6_a_. A piece of the shell, with five pores.

Fig. 6_b_. A piece of a tooth, with the internal axial rod

and its transverse branches.

Fig. 7. _Tuscarusa medusa_, n. sp., × 25 1709

View from the side.

Fig. 7_a_. View from the mouth, × 50

Fig. 8. _Tuscaridium lithornithium_, n. sp., × 20 1710

View from the ventral side. Central capsule and calymma as

in fig. 2.

Fig. 8_a_. Peristome from the ventral side.

Fig. 8_b_. Peristome from the right side.

[Illustration: TUSCARORA.]

PLATE 101.

LEGION PHÆODARIA.

Order PHÆOCYSTINA.

Families PHÆODINIDA, CANNORRHAPHIDA et AULACANTHIDA.

Fig. 1. _Phæocolla primordialis_, n. sp., × 300 1544

Central capsule, isolated. The double contoured outer

membrane exhibits only one opening, with a radiate

operculum and long proboscis. The granular protoplasm

encloses clear spherical vacuoles. The sphæroidal

nucleus contains irregular amoeboid nucleoli.

Fig. 2. _Phæodina tripylea_, n. sp., × 300 1545

A central capsule in self-division, with two elliptical

nuclei. The astropyle is already bisected and has two

proboscides.

Fig. 3. _Cannorrhaphis spinulosa_, n. sp., × 300 1552

A complete specimen with two central capsules, each of

which contains two nuclei. The alveolate calymma

contains a dark phæodium and is surrounded by

tangential tubular needles.

Fig. 4. _Cannorrhaphis spinulosa_, n. sp., × 300 1552

A single tangential tube.

Fig. 5. _Cannorrhaphis spathillata_, n. sp., × 300 1552

A single tangential tube.

Fig. 6. _Aulactinium actinastrum_, n. sp., × 100 1574

A complete specimen, seen in optical meridional section. In

the centre the spheroidal central capsule, with its

double membrane and three openings (above two lateral

parapylæ, below the large astropyle with its radiate

operculum). The capsule encloses numerous spherical

vacuoles and two hemispherical nuclei, each with

numerous nucleoli. The anterior half of the capsule is

surrounded by the blackish phæodium. The spherical

calymma contains numerous globular alveoles and is

pierced by the radial tubes, the proximal ends of which

are in contact with the surface of the central capsule

(compare Pl. 103, fig. 1).

Fig. 7. _Aulactinium actinastrum_, n. sp., × 300 1574

A single radial tube.

Fig. 8. _Aulactinium actinelium_, n. sp., × 200 1574

A single radial tube.

Fig. 9. _Mesocena stellata_, n. sp., × 600 1557

A single annular piece of the skeleton

Fig. 10. _Dictyocha stapedia_, n. sp., × 300 1561

A complete specimen, observed living at Ceylon. In the

centre is visible the large, spheroidal, tripylean

central capsule, with its three openings, containing a

large nucleus with numerous nucleoli. Its oral half is

covered with the dark phæodium. The voluminous

spherical calymma contains numerous globular alveoles

and its surface is covered with scattered,

stirrup-shaped pieces of the skeleton. Numerous free

pseudopodia arise from the surface.

Fig. 11. _Dictyocha stapedia_, n. sp., × 800 1561

A single piece of the skeleton, from above.

Fig. 12. _Dictyocha stapedia_, n. sp., × 800 1561

A twin piece of the skeleton.

Fig. 13. _Dictyocha medusa_, n. sp., × 800 1560

A single piece of the skeleton, from the side.

Fig. 14. _Dictyocha medusa_, n. sp., × 800 1560

A single piece of the skeleton, from above.

[Illustration: 1.-2. PHAEODINA, 3.-5. CANNORRHAPHIS, 6.-8. AULACTINIUM, 9.

MESOCENA, 10.-14. DICTYOCHA.]

PLATE 102.

LEGION PHÆODARIA.

Order PHÆOCYSTINA.

Family AULACANTHIDA.

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.

[Illustration: AULOCERA.]

PLATE 103.

LEGION PHÆODARIA.

Order PHÆOCYSTINA.

Family AULACANTHIDA.

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.

[Illustration: AULOGRAPHIS.]

PLATE 104.

LEGION PHÆODARIA.

Order PHÆOCYSTINA.

Family AULACANTHIDA.

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.

[Illustration: AULOSPATHIS]

PLATE 105.

LEGION PHÆODARIA.

Order PHÆOCYSTINA.

Family AULACANTHIDA.

AULACANTHIDA.

Fig. 1. _Aulodendron indicum_, n. sp., × 200 1590

A single tube.

Fig. 2. _Aulodendron pacificum_, n. sp., × 400 1589

Distal half of a tube.

Fig. 3. _Aulodendron australe_, n. sp., × 300 1589

A single tube.

Fig. 4. _Aulacantha spinosa_, n. sp., × 300 1575

Distal half of a tube.

Fig. 5. _Aulodendron antarcticum_, n. sp., × 300 1589

A single tube.

Fig. 6. _Aulographis pistillum_, n. sp., × 300 1579

A single tube.

Fig. 7. _Aulographis martagon_, n. sp., × 300 1579

Distal end of a single tube.

Fig. 8. _Aulographis triæna_, n. sp., × 80 1579

A single tube.

Fig. 9. _Aulographis flammabunda_, n. sp., × 100 1579

Distal end of a tube.

Fig. 10. _Aulographis flosculus_, n. sp., × 300 1580

Distal end of a tube.

Fig. 11. _Aulographis gemmascens_, n. sp., × 100 1580

Distal end of a tube.

Fig. 12. _Aulographis verticillata_, n. sp., × 400 1582

Distal end of a tube.

Fig. 12_a_. Apical view, with four verticils of five

branches.

Fig. 13. _Aulographis tripentas_, n. sp., × 300 1582

Distal end of a tube.

Fig. 13_a_. Apical view, with three verticils of five

branches.

Fig. 14. _Auloceros dicranaster_, n. sp., × 400 1585

Distal end of a tube, seen from the side.

Fig. 15. _Auloceros dicranaster_, n. sp., × 200 1585

Distal end of a tube, seen from the terminal face.

Fig. 16. _Aulacantha cannulata_, n. sp., × 300 1576

Distal end of a tube.

[Illustration: 1.-5. AULODENDRON. 6.-15. AULOGRAPHIS. 16. AULACANTHA.]

PLATE 106.

LEGION PHÆODARIA.

Orders PHÆOSPHÆRIA.

Family OROSPHÆRIDA.

OROSPHÆRIDA.

Fig. 1. _Orosphæra serpentina_, n. sp., × 50 1595

The entire shell.

Fig. 2. _Orosphæra horrida_, n. sp., × 50 1596

The entire shell.

Fig. 3. _Orosphæra arborescens_, n. sp. (vel _Orothamnus

arborescens_), × 50 1597

The entire shell.

Fig. 4. _Oroscena gegenbauri_, n. sp., × 50 1597

The entire shell.

(Compare Pl. 12, fig. 1.)

[Illustration: 1. 2. ORONIA, 3. OROTHAMNUS, 4. OROSCENA.]

PLATE 107.

LEGION PHÆODARIA.

Order PHÆOSPHÆRIA.

Family OROSPHÆRIDA.

(Fig. 8 of this Plate has no number, by mistake; it is at

the top in the middle.)

Fig. 1. _Oroplegma diplosphæra_, n. sp., × 50 1600

The entire shell, enveloped by an outer mantle of spongy

framework.

Fig. 2. _Oroplegma giganteum_, n. sp., × 200 1601

A small piece of the spongy framework.

Fig. 3. _Oroplegma spongiosum_, n. sp., × 50 1601

A pyramidal elevation of the inner shell, with its spongy

framework, and a radial spine on the top.

Fig. 4. _Oroscena bærii_, n. sp., × 100 1598

A pyramidal elevation of the shell, with a radial spine on

its top.

Fig. 5. _Orona maxima_, n. sp., × 300 1594

A small piece of the network; the central canals of the

bars are partly filled by air.

Fig. 6. _Oroscena cuvieri_, n. sp., × 50 1598

A single radial spine.

Fig. 7. _Orona crassissima_, n. sp., × 300 1594

A single bar of the coarse network, with dimpled surface.

Fig. 8. _Oroscena mülleri_, n. sp., × 50 1598

A single radial spine.

[Illustration: 1.-3. OROPLEGMA. 4.-7. OROSCENA.]

PLATE 108.

LEGION PHÆODARIA.

Order PHÆOSPHÆRIA.

Family SAGOSPHÆRIDA.

SAGOSPHÆRIDA.

Fig. 1. _Sagoscena castra_, n. sp., × 50 1608

Half the shell, with the enclosed central capsule and the

phæodium, stained by carmine. (The central nucleus

dark.)

Fig. 2. _Sagmarium spongodictyum_, n. sp., × 50 1612

Half the shell, with its delicate spongy framework.

Fig. 3. _Sagenoscena stellata_, n. sp., × 300 1610

Top and axial rod of a pyramid, prolonged into a crowned

radial spine.

Fig. 4. _Sagenoscena ornata_, n. sp., × 300 1610

A single pyramid with its axial rod, prolonged into a

crowned radial spine.

Fig. 5. _Sagoscena pellorium_, n. sp., × 300 1609

A single pyramid of the shell-surface.

Fig. 6. _Sagoscena tentorium_, n. sp., × 100 1608

A piece of the shell with eight pyramids.

Fig. 7. _Sagoscena prætorium_, n. sp., × 400 1609

Top of a pyramid.

Fig. 8. _Sagena ternaria_, n. sp., × 400 1606

A single triangular mesh of the lattice sphere.

Fig. 9. _Sagmidium crucicorne_, n. sp., × 400 1613

A single nodal point with three radial spines.

Fig. 9_a_. A portion of a spine, more highly magnified.

Fig. 10. _Sagosphæra penicilla_, n. sp., × 400 1607

One nodal point and its radial spine.

Fig. 11. _Sagosphæra furcilla_, n. sp., × 300 1607

Two nodal points of the network.

Fig. 11_a_. Extremity of a spine.

Fig. 12. _Sagmidium quadricorne_, n. sp., × 400 1614

A nodal point of the shell surface, with four divergent

spines.

Fig. 13. _Sagoplegma scenophora_, n. sp., × 300 1615

Tops of two pyramids.

Fig. 14. _Sagmarium plegmosphærium_, n. sp., × 300 1612

A nodal point of the spongy framework.

[Illustration: 1.-7. SAGOSCENA. 8. SAGENA. 9.-14. SAGOSPHAERA.]

PLATE 109.

LEGION PHÆODARIA.

Order PHÆOSPHÆRIA.

Family AULOSPHÆRIDA.

Fig. 1. _Aulosphæra dendrophora_, n. sp., × 50 1625

The entire shell, with the central capsule and its nucleus,

enveloped by the dark granular phæodium.

Fig. 2. _Aulosphæra dendrophora_, n. sp., × 300 1625

A single radial tube.

Fig. 3. _Aulosphæra sceptrophora_, n. sp., × 300 1625

A hexagonal group of six triangular meshes.

Fig. 4. _Aulosphæra sceptrophora_, n. sp., × 300 1625

A similar group, seen from the side, with three radial

tubes.

Fig. 5. _Aulosphæra spinosa_, n. sp., × 300 1627

A hexagonal group of six triangular meshes.

Fig. 6. _Aulosphæra undulata_, n. sp., × 400 1627

A single radial tube.

Fig. 7. _Aulosphæra spathillata_, n. sp., × 400 1624

A single radial tube.

Fig. 7_a_. An abnormal variety, × 400

Fig. 8. _Aulosphæra triodon_, n. sp., × 400 1623

A single radial tube.

Fig. 9. _Aulosphæra trifurca_, n. sp., × 400 1626

A single radial tube.

Fig. 10. _Aulosphæra cruciata_, n. sp., × 300 1624

A single radial tube.

Fig. 11. _Aulosphæra bisternaria_, n. sp., × 300 1624

A single radial tube.

Fig. 12. _Aulosphæra bisternaria_, n. sp., × 600 1624

Distal end of a single radial tube.

[Illustration: AULOSPHAERA.]

PLATE 110.

LEGION PHÆODARIA.

Order PHÆOSPHÆRIA.

Family AULOSPHÆRIDA.

Fig. 1. _Auloscena mirabilis_, n. sp., × 50 1628

The complete shell, representing a regular latticed sphere,

which is composed of equal hexagonal pyramids; the top

of each pyramid bears a radial tube with a terminal

corona.

Fig. 2. _Auloscena mirabilis_, n. sp., × 600 1628

Terminal corona of a single radial tube.

Fig. 3. _Auloscena penicillus_, n. sp., × 200 1629

A single tent-shaped elevation or six-sided pyramid,

bearing on the top a brush-shaped radial tube.

Fig. 4. _Auloscena flammabunda_, n. sp., × 400 1629

A single radial tube, with a centripetal free prolongation

at the base and a verticil of undulate terminal

branches at the distal end.

Fig. 5. _Auloscena serrata_, n. sp., × 600 1630

Terminal corona of a single radial tube.

Fig. 6. _Auloscena tentorium_, n. sp., × 400 1628

A single radial tube, with a centripetal prolongation at

the base and a terminal corona at the distal end.

Fig. 7. _Auloscena gigantea_, n. sp., × 400 1629

Basal part of a radial tube, exhibiting the internal axial

thread and its connection with the six tubes, which

form the edges of a flat six-sided pyramid (usually

more elevated than the figure exhibits).

Fig. 8. _Auloscena spectabilis_, n. sp., × 400 1628

Apex of an abnormal pyramid (sometimes occurring), in which

seven radial tubes are united, instead of six.

Fig. 9. _Auloscena spectabilis_, n. sp., × 800 1628

Basal part of a radial tube, in the top of a flat six-sided

pyramid; above it the distal part of the same tube with

its terminal corona (middle part of the tube wanting).

Fig. 10. _Auloscena verticillus_, n. sp., × 300 1629

Apex of a six-sided pyramid, seen from the inside.

Fig. 11. _Auloscena verticillus_, n. sp., × 400 1629

Distal part of a single radial tube, with the terminal

corona.

[Illustration: AULOSCENA.]

PLATE 111.

LEGION PHÆODARIA.

Order PHÆOSPHÆRIA.

Family AULOSPHÆRIDA.

Fig. 1. _Aulonia hexagonia_, n. sp., × 30 1634

The complete spherical shell.

Fig. 2. _Aularia ternaria_, n. sp., × 300 1621

A group of six triangular meshes, with seven nodal points

of radial tubes. Behind the central capsule, with its

double membrane (_e_, outer; _i_, inner) and radiate

operculum (_o_); _u_, the two outer parapylæ; _v_,

vacuoles in the protoplasm. The ellipsoidal nucleus

(_n_) contains numerous nucleoli (_l_).

Fig. 3. _Aulastrum triceros_, n. sp., × 50 1635

The complete shell.

Fig. 3_a_. _Aulastrum triceros_, n. sp., × 300 1635

A single radial tube.

Figs. 4_a_, 4_b_, 4_c_. _Aulastrum dendroceros_, n. sp., × 400 1635

Three single radial spines (taken from three different

specimens).

Fig. 5_a_. _Aulophacus lenticularis_, n. sp., × 300 1631

A single radial spine.

Fig. 5_b_. _Aulophacus amphidiscus_, n. sp., × 300 1631

A single radial spine.

Fig. 6. _Aulatractus fusiformis_, n. sp., × 5 1632

The complete shell, five times enlarged.

Fig. 6_a_. _Aulatractus fusiformis_, n. sp., × 20 1632

Apical part of the shell.

Fig. 6_b_. _Aulatractus fusiformis_, n. sp., × 400 1632

A single radial tube.

Fig. 7. _Aulatractus diploconus_, n. sp., × 20 1632

Apical part of the shell.

Fig. 7_a_. _Aulatractus diploconus_, n. sp., × 400 1632

A single radial tube.

Fig. 8. _Auloplegma perplexum_, n. sp., × 50 1630

Half the shell.

Fig. 8_a_. _Auloplegma perplexum_, n. sp., × 400 1630

A single radial tube.

Fig. 9. _Auloplegma spongiosum_, n. sp., × 300 1631

A single radial tube.

[Illustration: 1. AULONIA, 2-5. AULOSPHAERA, 6. 7. AULATRACTUS, 8.

AULOPLEGMA.]

PLATE 112.

LEGION PHÆODARIA.

Orders PHÆOSPHÆRIA.

Family CANNOSPHÆRIDA.

CANNOSPHÆRIDA.

Fig. 1. _Cannosphæra antarctica_, n. sp., × 50 1640

The entire shell. The inner mammillate shell, from the

month of which is prominent the phæodium, in connected

by numerous radial beams with the outer shell.

Fig. 2. _Cannosphæra antarctica_, n. sp., × 200 1640

The inner shell, from the mouth of which is prominent the

phæodium, and a single hexagonal mesh of the outer

shell, connected with the former by thin radial

threads.

Fig. 3. _Cannosphæra antarctica_, n. sp., × 200 1640

A single radial spine, with four terminal branches.

Fig. 4. _Cannosphæra pacifica_, n. sp., × 200 1641

The inner shell, exhibiting on its base the widely open

mouth, and in its upper half the transparent spherical

central capsule with its nucleus. Of the outer shell

(which is connected with the inner by thin radial

threads), only a few polygonal meshes are visible.

Fig. 5. _Cannosphæra atlantica_, n. sp., × 200 1640

The inner shell, connected by spiny radial beams with the

outer shell, a quadrant only of which is visible.

Fig. 6. _Cannosphæra atlantica_, n. sp., × 200 1640

A single radial spine, with five terminal branches.

[Illustration: CANNOSPHAERA.]

PLATE 113.

LEGION PHÆODARIA.

Order PHÆOGROMIA.

Family CASTANELLIDA.

Fig. 1. _Castanissa challengeri_, n. sp., × 100 1686

In the lower part of the figure is visible the large corona

of teeth around the mouth (_a_).

Fig. 2. _Castanidium moseleyi_, n. sp., × 80 1686

In the upper part of the figure, at left, is visible the

irregular polygonal mouth (_a_).

Fig. 3. _Castanopsis naresi_, n. sp., × 80 1688

In the upper part of the figure is visible the smooth

circular mouth (_a_).

Fig. 4. _Castanura tizardi_, n. sp., × 80 1689

Fig. 4_a_. A single main-spine of the same, × 400

Fig. 5. _Castanidium murrayi_, n. sp., × 100 1685

With a large phæodium, partly protruded through the

circular mouth.

Fig. 5_a_. A single main-spine of the same, hexagonally

dimpled, × 400

Fig. 6. _Castanella wyvillei_, n. sp., × 100 1683

A piece of the shell with the mouth, armed with six large

teeth (_a_).

Fig. 7. _Castanidium buchanani_, n. sp., × 100 1685

A piece of the shell with the smooth roundish mouth (_a_).

[Illustration: CASTANELLA.]

PLATE 114.

LEGION PHÆODARIA.

Orders PHÆOCYSTINA ET PHÆOGROMIA.

Families CANNORRHAPHIDA et CIRCOPORIDA.

Fig. 1. _Haeckeliana darwiniana_, n. sp., × 200 1702

A complete shell.

Fig. 2. _Haeckeliana darwiniana_, n. sp., × 400 1702

A single coronet of pores.

Fig. 3. _Haeckeliana goetheana_, n. sp., × 300 1702

The oral part of the shell with the mouth.

Fig. 4. _Haeckeliana lamarckiana_, n. sp., × 400 1701

A single coronet of pores.

Fig. 5. _Haeckeliana maxima_, n. sp., × 300 1701

A single coronet of pores.

Fig. 6. _Haeckeliana porcellana_, John Murray, × 200 1701

A complete shell.

Fig. 7. _Distephanus corona_, n. sp., × 800 1566

A single pileated piece (half from the side, half from

below).

Fig. 8. _Distephanus corona_, n. sp., × 800 1566

Two coupled pileated pieces caught into one another

(twin-piece).

Fig. 9. _Distephanus corona_, n. sp., × 800 1566

A single pileated piece, seen from above.

Fig. 10. _Cannopilus diplostaurus_, n. sp., × 800 1568

A single pileated piece, seen from above.

Fig. 11. _Cannopilus cyrtoides_, n. sp., × 800 1569

A single pileated piece, seen obliquely from the side.

Fig. 12. _Cannopilus cyrtoides_, n. sp., × 800 1569

A single pileated piece, seen from below.

Fig. 13. _Haeckeliana porcellana_, John Murray, × 600 1526

The radiate operculum of the central capsule.

[Illustration: 1.-6. HAECKELIANA, 7.-9. DISTEPHANUS, 10.-13. CANNOPILUS.]

PLATE 115.

LEGION PHÆODARIA.

Order PHÆOGROMIA.

Family CIRCOPORIDA.

Fig. 1. _Circoporus sexfuscinus_, n. sp., × 100 1695

The cruciform mouth is visible in the upper part of the

figure, to the right.

Fig. 2. _Circoporus sexfuscinus_, n. sp., × 200 1695

A single radial spine, with four cruciate pores at the

base.

Fig. 3. _Circoporus sexfuscinus_, n. sp., × 600 1695

The radiate operculum of the central capsule, with the

proboscis.

Fig. 4. _Circospathis furcata_, n. sp., × 100 1696

Five of the nine spines are visible, two others (on the

upper face) broken off. Between the latter the

pentagonal mouth (with five teeth).

Fig. 5. _Circospathis furcata_, n. sp., × 300 1696

The mouth with its five teeth.

Fig. 6. _Circospathis furcata_, n. sp., × 400 1696

A piece of the shell with a radial spine.

Fig. 7. _Circospathis furcata_, n. sp., × 400 1696

Vertical section through the base of a radial spine, to

show the central funicle.

Fig. 8. _Circogonia dodecacantha_, n. sp., × 100 1698

The central capsule with the elliptical nucleus (to the

right) and the dark phæodium (to the left) are visible,

in the upper part (to the left) the mouth of the shell,

with six teeth.

Fig. 9. _Circogonia dodecacantha_, n. sp., × 400 1698

A fragment of the shell, exhibiting its peculiar structure

(needles tangentially scattered in the cement of the

porcellanous substance), and a circle of nine pores

around the base of a broken spine.

Fig. 10. _Circospathis tetrodonta_, n. sp., × 400 1697

The mouth with four teeth, in profile view.

[Illustration: 1.-3. CIRCOPORUS, 4.-10. CIRCOSPATHIS.]

PLATE 116.

LEGION PHÆODARIA.

Order PHÆOGROMIA.

Families MEDUSETTIDA et CIRCOPORIDA.

Fig. 1. _Polypetta mammillata_, n. sp., × 500 1677

In the upper part of the figure the dentate proboscis.

Fig. 1_a_. Vertical section through the shell-wall, showing

two of the hollow alveoles, opening on its inside, ×1000

Fig. 2. _Polypetta tabulata_, n. sp., × 500 1677

In the upper part of the figure the dentate proboscis.

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 · 第 5 / 7 段