Fig. 



2. 



Fig. 



3. 



Fig- 



4. 



Fig. 



5. 



Fig. 



6. 



X 



300 



1552 



X 



300 



1552 



X 



100 



1574 



PLATE 101. 



Peleodinida, Cannorkhaphida et Aulacanthida. 



Diam. Page 



Fig. 1, Phceocolla primordialis, n. sp., . . . x 300 1544 



Central capsule, isolated. The double contoured outer membrane ex- 

 hibits only one opening, with a radiate operculum and long proboscis. 

 The granular protoplasm encloses clear spherical vacuoles. The 

 sphseroidal nucleus contains irregular amoeboid nucleoli. 



Phceodina tripylea, n. sp., . . . . x 300 1545 



A central capsule in self-division, with two elliptical nuclei. The 

 astropyle is already bisected and has two proboscides. 



Cannorrhaphis spinulosa, n. sp., . . x 100 1552 



A complete specimen with two central capsules, each of which contains 

 two nuclei. The alveolate calymma contains a dark phseodium and 

 is surrounded by tangential tubular needles. 



Cannorrhaphis spinulosa, n. sp., . 



A single tangential tube. 



Cannorrhaphis spathillata, n. sp., . 



A single tangential tube. 



Aulactinium actinastrum, n. sp., 



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 parapylse, 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 phse- 

 odium. 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., 

 A single radial tube. 



Fig. 8. Aulactinium actinelium, n. sp., 

 A single radial tube. 



Fig. 9. Mesocena stellata, n. sp., 



A single annular piece of the skeleton 



Fig. 10. Dictyocha stapedia, n. sp., . 



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 phaeodium. 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., . 



A single piece of the skeleton, from above. 



Fig. 12. Dictyocha stapedia, n. sp., . 

 A twin piece of the skeleton. 



Fig. 13. Dictyocha medusa, n. sp., . . 



A single piece of the skeleton, from the side. 



Fig. 14. Dictyocha medusa, n. sp., . 



A single piece of the skeleton, from above. 



X 



300 



1574 



X 



200 



1574 



X 



600 



1557 



X 



300 



1561 



X 



800 



1561 



X 



800 



1561 



X 



800 



1560 



X 



800 



1560 



