Legion ACANTHARIA.

Order SPHÆROPHRACTA.

Families Sphærocapsida et Dorataspida.

PLATE 135.
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 et Dorataspida.
Diam.Page.

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 135.
Sphærocapsida et Dorataspida.
Diam.Page.

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.